What are the factors affecting cell membrane transport?
Answers
Answer: There are several
1: The degree of hydrophobic vs polar properties of the molecule will determine if it needs a protein transporter or can diffuse across the membrane.
2: The concentration of the molecule will determine the direction of transport. If the molecule must be transported against its concentration gradient, energy is required.
3: For molecules needing a protein transporter, whether the cell actually makes that transporter will determine if that molecule can be transported.
Explanation: N/A
Related Questions
Which one of the following statements best describes dominant gain-of-function mutations?A. A mutation whose gene product does not change the phenotype or the evolutionary fitness of the organism.B. A single copy of the mutation in a diploid organism that reduces or eliminates the function of a gene product.C. A single copy of the mutation in a diploid organism that creates a gene product with enhanced or new functions.D. A mutation in which the organism gains genetic material due to nondisjunction during meiosis.
Answers
C. A single copy of the mutation in a diploid organism that creates a gene product with enhanced or new functions.
Dominant gain-of-function mutations are mutations that result in a gene product with enhanced or new functions. These mutations only require one copy in a diploid organism to produce the phenotype. They are dominant because the mutated gene product can override the function of the normal gene product produced by the other allele. This results in an altered phenotype that is different from the wild type.
Dominant gain-of-function mutations can have significant effects on an organism's fitness and can lead to disease in humans. Examples of dominant gain-of-function mutations include the Huntington's disease gene, which produces a protein that is toxic to neurons, and the oncogene Ras, which is involved in the development of cancer.
Know more about mutations, here:
https://brainly.com/question/13923224
#SPJ11
In the current system used for taxonomy, all organisms are placed into three categories of life. Each of these categories is called a(n)
Answers
All creatures are grouped into one of three types of life according to the current taxonomy system. Each of these groups is referred to as a domain and Archaea, bacteria, and eukarya are the three major categories of life.
Thus, these domains are wide classifications that include many sorts of creatures according to their cellular make-up, biochemistry, and evolutionary connections.
Scientists can better appreciate the diversity and connections among various creatures on a broad scale thanks to the domain system, which offers a higher-level categorization. Organisms are further divided into more specialized groups within each domain, including kingdoms, phyla, classes, orders, families, genera, and species.
Learn more about Archaea here:
https://brainly.com/question/1475001
#SPJ4
PLEASE HELP ASAP!!! I'LL MARK BRAINLIEST!!!
In this assessment, you will categorize a group of animals by two forms of classification: phylogeny (cladistics) and Linnaean taxonomy. For phylogeny, you will create a cladogram for your groups of animals. For Linnaean classification, you will create a taxonomy chart or concept map that categorizes your species by taxa.
Bird Group: Hummingbird, duck, falcon, pelican, and ostrich
Answers
The groups of animals according to their classification are shown below in a cladogram for phylogeny and a taxonomy chart for Linnaean.
How to create a cladogram and taxonomy chart?Phylogeny (cladistics) for the bird group:
To create a cladogram for the bird group, you need to compare the morphological, anatomical, and molecular characteristics of the species and determine their evolutionary relationships.
A possible cladogram could look like this:
Ostrich
/
/
Falcon
/ \
/ \
Pelican Duck
/
/
Hummingbird
Linnaean Taxonomy for the bird group:
A possible taxonomy chart or concept map that categorizes the bird species by taxa could look like this:
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Struthioniformes (Ostrich)
|
Order: Falconiformes (Falcon)
|
Order: Pelecaniformes (Pelican)
|
Order: Anseriformes (Duck)
|
Order: Trochiliformes (Hummingbird)
This taxonomy chart categorizes the bird species based on the hierarchy of taxonomic categories, starting from the largest group (Kingdom) to the smallest group (Order).
Learn more on cladogram and taxonomy here: https://brainly.com/question/24233730
#SPJ1
10 POINTS QUESTION: Objects of different masses are suspended from a height. Which combination of features will have the greatest gravitational potential energy?
A. high mass and high height
B. high mass and low height
C. low mass and low height
D. low mass and high height
Answers
Answer: high mass and high height
Explanation:
The gravitational potential energy is refered as the potential energy that has to do with the energy in a particular object due to the height of that object.
With the above explanation, when objects that have different masses are suspended from a height, the one that will have the greatest gravitational potential energy will be the one with a high mass and high height.
Therefore, the correct option is A.
A child receives an X chromosomes from its mother and Y chromosomes from its father. What is true about this child
Answers
Answer:
The child is a boy
Explanation:
The XY chromosome belongs to a male and XX chromosome for females
A student wants to know if the amount of water grass receives affects the growth is this a testable question? Why or why not.
Answers
two glass tubes are placed in water one of them has very concentrated sucrose solution while the other has a concentrated sucrose solution after an hour what will happen to the liquid levels in the glass
Answers
Answer:
The liquid levels in the solution will become more dilute (have more water) due to Osmosis.
Explanation:
This is because Osmosis moves down a concentration gradient so the water outside the solution will become more concentrated and the solution will become more dilute.
It is commonly believed that the mean body temperature of a healthy adult is 98.6∘F. You are not entirely convinced. You believe that it is not 98.6∘F. You collected data using 54 healthy people and found that they had a mean body temperature of 98.26∘F with a standard deviation of 1.16∘F. Use a 0.05 significance level to test the claim that the mean body temperature of a healthy adult is not 98.6∘F. a) Identify the null and alternative hypotheses? H0: ?
H1: ? b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? i. left-tailed ii. right-tailed
iii. two-tailed c) Identify the appropriate significance level. d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places. e) Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places. f) Do you reject the null hypothesis? 1. We reject the null hypothesis, since the p-value is less than the significance level.
2. We reject the null hypothesis, since the p-value is not less than the significance level. 3. We fail to reject the null hypothesis, since the p-value is less than the significance level. 4. We fail to reject the null hypothesis, since the p-value is not less than the significance level. g) Select the statement below that best represents the conclusion that can be made. 1. There is sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6∘F. 2. There is not sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6∘F. 3. The sample data support the claim that the mean body temperature of a healthy adult is not 98.6∘F.
4. There is not sufficient sample evidence to support the claim that the mean body temperature of a healthy adult is not 98.6∘F.
Answers
The conclusion of the hypothesis test regarding the mean body temperature of a healthy adult is sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6∘F.
What is the conclusion of the hypothesis test regarding the mean body temperature of a healthy adult?a) Null Hypothesis (H0): The mean body temperature of a healthy adult is 98.6∘F.
Alternative Hypothesis (H1): The mean body temperature of a healthy adult is not 98.6∘F.
b) The hypothesis test should be two-tailed.
c) The appropriate significance level is 0.05.
d) The test statistic is calculated using the formula: (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size)). The result is -5.86.
e) The p-value is calculated by finding the probability of obtaining a test statistic as extreme or more extreme than the observed value under the null hypothesis. The p-value is 0.0000.
f) We reject the null hypothesis, since the p-value is less than the significance level.
g) The phrase "There is sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6F" best summarises the finding.
Learn more about hypothesis test
brainly.com/question/17099835
#SPJ11
describe the relationship between water velocity and water loss
Answers
Answer:
If the water velocity decreases, the rate of erosion increases.
How can a cell increase surface area without increasing the volume?
Answers
Cells can increase their surface area by folding the plasma membrane. Total cell surface area should increase when a cell divides into two daughter cells.
There are two illustration of membrane supply that support cell division:
(1) unfolding of small surface membrane reservoirs such as microvilli and folds, and (2) exocytosis of intracellular vesicles.
As the cell radius increases, the surface area increases as the radius squared, but the volume increases as the radius cubed (much faster).
Increasing the surface area of the cell increases the amount of material that diffuses into the cell. As volume and surface area increase, volume increases more rapidly, so for every doubling of cell volume, the surface area available for uptake is halved.
For more information on cell , visit :
https://brainly.com/question/27827698
#SPJ4
which synthetic sweetener should not be consumed by individuals suffering from phenylketonuria (pku)? a. stevia b. saccharin c. aspartame d. tagatose e. sucralose
Answers
The synthetic sweetener that should not be consumed by individuals suffering from phenylketonuria (PKU) is aspartame. So the correct option is C.
Phenylketonuria is a genetic disorder where the body cannot break down the amino acid phenylalanine. Aspartame is a low-calorie sweetener made by combining two amino acids, aspartic acid, and phenylalanine. When individuals with PKU consume aspartame, their bodies are unable to metabolize the phenylalanine component properly, this can lead to a dangerous buildup of phenylalanine in the blood, which may cause brain damage and other severe health complications. To manage PKU, patients must follow a strict diet low in phenylalanine, which means avoiding aspartame and other sources of the amino acid
Learn more about phenylketonuria: https://brainly.com/question/29410038
#SPJ11
Put the following in order from most thermal energy to least thermal energy.
Answers
from hottest to coldest:
- the turkey
- the tea
- the beach
- the, what is it, an iceberg or ocean?
- the ice cube
refer to the other question I answered by you. 0 degrees Celsius would be frozen, 100 would be boiling hot. Since -2 is the lowest, that would be the coldest/ least amount of thermal energy. 60 degrees Celsius is the highest, so it has the most thermal energy. Again, thermal energy is just heat energy, so you just need to figure out which is hottest.
State one similarity and one difference between parasitic and predatory modes of feeding
Answers
Answer:
One similarity between parasitic and predatory modes of feeding is that both involve the ingestion of other organisms for nutrition. In both cases, the organisms that do the feeding (the parasites or predators) obtain their food from other organisms (the host or prey), which they consume and use to nourish themselves.
One difference between parasitic and predatory modes of feeding is the relationship between the predator and its prey. In predatory feeding, the predator and its prey are typically separate and distinct organisms, and the predator actively hunts and kills its prey for food. In parasitic feeding, the parasite and its host are typically closely associated, and the parasite typically lives on or inside the host, feeding off of its nutrients or tissues. This relationship between the parasite and its host is often harmful to the host, while the relationship between the predator and its prey is typically not harmful (as long as the predator is not over-consuming its prey).
If your house were to accumulate radon it would most likely accumulate in the
Answers
Answer:
Radon is a naturally occurring radioactive gas that can accumulate in homes and other buildings. It can enter the home through cracks and openings in the foundation and walls, as well as through gaps around pipes and wiring. Radon gas is odorless and colorless, making it difficult to detect without testing. In homes, the highest levels of radon are typically found in the basement or lowest levels of the home. The best way to prevent radon accumulation is to seal any cracks or openings in the foundation, walls, and around pipes or wiring. Additionally, homeowners should install a radon mitigation system if radon levels are found to be high.
Which traits separate fungi from plants?
Answers
We now know that they have unique physical, chemical, and genetic traits that set them apart from plants and other eukaryotes. For example, the cell walls of fungi are made of chitin, not cellulose. Also, fungi absorb nutrients from other organisms, whereas plants make their own food.
Answer:
Fungi don't have chlorophyll and cannot produce their own food, the bodies of fungi are made of masses of filaments woven together, the fungal cell walls contain chitin complex polysacharide.
Explanation:
Look at the diagram. Name organ 2.
Answers
Answer:
Small intestine
Answer:
intestine
Explanation:
food passes through
What feature of a body plan allows the specialization different parts of the body for different function
Answers
Answer: Tagmosis
Explanation: Tagmosis allows specialization of different parts of the body for different function
Long-term health effects of consuming too few iron-rich foods can lead to: O fatigue pernicious anemia abnormal heart rate O all of the above A and C
Answers
The long-term health effects of consuming too few iron-rich foods can lead to all of the above: fatigue, pernicious anemia, and abnormal heart rate. Iron is an essential mineral that plays a crucial role in the formation of red blood cells, which transport oxygen throughout the body.
The body requires iron to carry oxygen to the muscles and brain, and to help enzymes function effectively. If the body doesn't get enough iron, it can lead to iron deficiency anemia, which is caused by a lack of iron in the body. If the condition persists, it can result in long-term health consequences, including fatigue, pernicious anemia, and abnormal heart rate.
Fatigue is a common symptom of iron deficiency anemia, and it can have a significant impact on quality of life. Pernicious anemia is a rare type of anemia that occurs when the body is unable to absorb vitamin B12 from food. Vitamin B12 is required to create healthy red blood cells, and a lack of vitamin B12 can lead to pernicious anemia. Abnormal heart rate, or arrhythmia, can occur when there is an imbalance of electrolytes in the blood. Iron deficiency can cause an imbalance of electrolytes, which can lead to an abnormal heart rate. Therefore, all of the above (fatigue, pernicious anemia, and abnormal heart rate) are the long-term health effects of consuming too few iron-rich foods.
To know more about health visit:
https://brainly.com/question/32613602
#SPJ11
Why do you think An enzyme in a cell became dysfunctional because of an alteration. As a result, the DNA strands would not separate to begin the replication process. Which enzyme has been affected?The eukaryotic DNA requires multiple origins of replication?
Answers
Answer:
1. helicase enzyme
2. Eukaryotic DNA is much larger and replication at multiple origins helps reduce the time required for whole genomes to replicate.
Explanation:
1. During DNA replication helicase enzyme is the enzyme that unwinds 2 DNA strands. Hydrogen bonds present between two strands of the DNA helical which are broken by the helicase enzyme and separate both the strands. Unwinding is essential here as it initiates the replication process.
2. There are multiple origin sites in the eukaryotic DNA due to the larger amount of material to be replicated. To reduces the replication time of the entire genome requires multiple origins of replication.
Since these DNA strands are kind of mind boggling to me, I'm just wondering if anyone has the answer to this and can explain it to me further, it would be much appreciated.
The nucleotide sequence of an unwound strand of DNA is TACATGCTAGCCGCTATC. What is the corresponding mRNA sequence?
Answers
Considering the given nucleotide sequence to be a template strand , the corresponding sequence of mRNA will be: AUGUACGAUCGGCGAUAG.
Nucleotides are the basic units forming the nucleic acids. They are themselves composed of three components: a pentose sugar, nitrogenous bases and a phosphate group. There are 5 types of nitrogenous bases and any one gets inserted into the nucleotide at a time.
mRNA is the coding RNA also called the messenger RNA. It is synthesized by a process called transcription. It carries the genetic information from the DNA to form proteins during the process of translation. It is a single stranded nucleic acid.
To know more about mRNA, here
brainly.com/question/29314591
#SPJ1
Nettie is in the laboratory working with cultured neurons. she wants to record the voltage following the opening of the sodium channels. what does she need to do to get the sodium channels to open?
Answers
What Nettie needs to do to get the sodium channels to open is as follows;
Add a solution that will lead to the membrane depolarizationWhat are the sodium channels and what is their function?Sodium channels function as rapid transmitters of impulses that causes depolarization all through cell networks and cells, such that processes such as cognition and locomotion, which are higher processes are enabled
The regular state of sodium channels is a "closed" or resting state at which state (condition) sodium ions are not conducted. The act of membrane depolarization stimulation, activates or results in the sodium channels being "opened".
When voltage–gated sodium channels open allowing the influx of sodium ions, results in depolarization.
Therefore, to open the get the sodium channels to open, Nettie should;
Add a solution that will lead to membrane depolarization.Learn more about the voltage–gated sodium channels here:
https://brainly.com/question/27548793
#SPJ1
Which type of reaction typically has a high reaction rate?
A. Double replacement
B. Single replacement
C. Redox
D. Decomposition
Answers
The type of reaction that typically has a high reaction rate is Decomposition. This is because it involves the breaking down of a single compound into simpler substances, which requires a lot of energy and therefore occurs quickly.
In a decomposition reaction, a single reactant compound is broken down into two or more simpler products, such as AB → A + B. This process releases a significant amount of energy, which helps to drive the reaction forward and makes it occur quickly. Additionally, decomposition reactions often involve highly reactive substances, such as peroxides or acids, which can also contribute to a high reaction rate.
In contrast, double replacement and single replacement reactions typically occur more slowly, as they involve the exchange of ions between two reactants. Redox reactions, while they can release a lot of energy, often involve complex oxidation and reduction processes that can slow down the overall reaction rate.
Learn more about decomposition here:
https://brainly.com/question/16987748
#SPJ11
what does it mean for a trait to be both polygenic and multifactorial?
Answers
When a trait is said to be both polygenic and multifactorial, it means that the trait is influenced by multiple genes (polygenic) and also by multiple environmental factors (multifactorial).
Polygenic traits are those that are determined by the interaction of many different genes, while multifactorial traits are those that are determined by a complex interaction between genetic and environmental factors. Examples of such traits include height, skin color, and susceptibility to certain diseases.
In these cases, the contribution of each gene and environmental factor to the trait is typically small, and the final expression of the trait is the result of the cumulative effect of all these factors.
To know more about polygenic visit:-
https://brainly.com/question/4161162
#SPJ11
q14.2 if the ease of oxygen pickup depends on oxygen concentration, would respiration be easier in air or in water?
Answers
Respiration would be easier in air than in water because the concentration of oxygen in air is much higher than in water.
The partial pressure of oxygen( PO2) at ocean position air is roughly 160 mmHg, but the PO2 in face water is only about 21 mmHg. likewise, due to the increased viscosity and density of water, oxygen diffuses vastly more sluggishly than in air. The respiratory face of terrestrial creatures is generally formed of thin, wet membranes that allow for effective gas exchange with the air.
Submarine brutes, on the other hand, have respiratory shells that are designed for gas exchange in water, frequently via the use of gills. still, indeed in submarine brutes, the volume of oxygen that can be collected from the girding terrain is limited by the attention of oxygen in the water.
Learn more about oxygen at
https://brainly.com/question/14514830
#SPJ4
What is the purpose of an antibody? Group of answer choices to stick to an antigen, alerting your body of the presence of a foreign substance to send chemical messages to and from the brain and body to clot blood when the body has a cut our wound to carry oxygen to body cells and tissues
Answers
Answer: Antibodies are proteins that are found in the body on the surface of red blood cells and in the blood plasma ,they are very sensitive to foreign bodies and bad viruses and bacteria,when they notice the presence of anything that poses harm or a threat to the body system,they track it down and fight/destroy it.
Antibodies also play crucial role in hemostasis(stoppage of bleeding) in the sense that when the body is wounded or when someone gets a cut antibodies that are found in the plasma and some substances found in the platelets are released to play a role in sending signal to the blood clotting factors in the blood to be released to arrest the bleeding and prevent the person from bleeding out their entire blood.
What factors determine whether a species can be present in a place?
a. Climate and weather.
b. Food availability and competition.
c. Environmental conditions and habitat suitability. d. Reproductive behavior and migration patterns.
Answers
The interplay of factors like climate, weather, food availability and competition, environment conditions and habitat suitability, reproductive behavior, and migration patterns. determines whether a species can be present and sustain a population in a given place.
The presence of a species in a particular place is determined by various factors, including:
a. Climate and weather: Species have specific climate requirements, such as temperature and precipitation, which influence their ability to survive and thrive in a given area.
b. Food availability and competition: The availability of suitable food resources and the presence of competitors can impact a species' ability to establish and persist in a particular location.
c. Environmental conditions and habitat suitability: Species have specific environmental requirements, including factors like soil type, water availability, and vegetation, which determine whether an area provides a suitable habitat for their survival and reproduction.
d. Reproductive behavior and migration patterns: The reproductive behavior of a species, including mating rituals and breeding requirements, as well as migration patterns, can influence its presence in a specific place. Some species may require specific conditions or resources for successful reproduction or undertake seasonal migrations to find suitable habitats.
Overall, the interplay of factors like climate, weather, food availability and competition, environment conditions and habitat suitability, reproductive behavior, and migration patterns. determines whether a species can be present and sustain a population in a given place.
For more such questions on habitat suitability:
https://brainly.com/question/5833245
#SPJ8
Which of the following is a major unifying theme in evolution?
Group of answer choices
biogeography
fossil record
vestigial structures
common ancestry
Answers
Dr. Mrs. Brown has Rh+ blood, but her father is Rh-. What must her full blood type genotype be?
Answers
Answer:
Her full blood type genotype is Dd.
Explanation:
Rh (Rhesus) factor is a type of protein found on the outside of red blood cells. It is genetically inherited. An individual that has this protein is Rh-positive, and the one that doesn't is Rh-negative. The Rh-positive gene is dominant, while the Rh-negative gene is recessive. This means that a person must inherit at least one dominant (D) allele from their parents in order to be Rh-positive.
If Dr. Mrs. Brown is Rh-positive, and her father is Rh-negative, her mother must be Rh-positive (DD or Dd), as well. Her father has two recessive alleles (dd), which means that Dr. Mrs. Brown must have one recessive allele. Since she is Rh-positive, she must have one dominant allele. This makes her genotype Dd.
Two isotopes of the same element must have the same
A. O atomic symbol and number of neutrons.
B
atomic mass and number of neutrons.
C.
atomic symbol and number of protons.
D
atomic
and number of protons.
Answers
Answer:
C. atomic symbol and number of protons.
Explanation:
number of protons in the nucleus, but differ in the number of neutrons. The nucleon number is equal to the total number of protons and neutrons in the nucleus. ... The atomic mass number A is equal to the total number of protons and neutrons.
Two isotopes of the same element must have the same atomic symbol and number of protons.
ISOTOPES:
Isotopes are atoms of the same element with the same atomic number and chemical identity but different atomic masses. The forms in which atoms of a particular element exists is referred to as its isotope.The sole difference between isotopes of the same element is the number of neutrons each contain, which is responsible for the difference in masses. This means that isotopes of the same element must have the same atomic symbol and number of protons. For example, Carbon has two isotopes namely: C- 14 and C- 12 with both possessing atomic number 6 and symbol C.Learn more: https://brainly.com/question/21536220?referrer=searchResults
A student observed a specimen through a light microscope.He used the objective lens marked
\( \times 40\)
.if he indiceated the
magnification of the image as
\( \times 400\)
what was the eyepiece magnifacation?
Answers
Ans
400=x*40
x=400/40=10
ans = x10
Explanation:
total magnification=eyepiece magnification*objective lens magnification
eye piece=total/objective lens
:)