How can some large molecules and charged ions get through the cell membrane?
Answers
Answer:
In cells, some molecules can move down their concentration gradients by crossing the lipid portion of the membrane directly, while others must pass through membrane proteins in a process called facilitated diffusion.
Some large molecules and charged ions get through the cell membrane as
a result of osmosis, diffusion, facilitated diffusion etc.
Molecules get through the cell membrane through diffusion which is the
movement of substances from a region of higher concentration to a region
of lower concentration.
Facilitated diffusion is the same with diffusion but it makes use of a
substance for transport.
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Related Questions
What does the arrow in the food web represent?
Answers
Answer:
This represent the flow of energy.
lil more info:
The placement of the arrows in a food chain or food web is very important. The arrows always show the direction of the energy as it is transferred from one organism to another. The flow of energy can also be represented within an energy pyramid.
Answer:
An arrow in a food web represents the transfer of energy.
Explanation:
However as the energy in the food web gets higher it loses energy
The human body has specialized organs called glands which collect and process substances from the blood. The concentrated substances are then secreted as hormones to regulate body processes. These specialized organs are part of which body system?.
Answers
Circulatory system are specialized organs called glands which collect and process substances from the blood.
Circulatory system is responsible for delivering oxygen and nutrients to cells and takes away wastes. Heart plays important role in pumping oxygenated and deoxygenated blood on both the sides. These blood vessels include arteries, capillaries and veins. Hence, circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
On the other hand, excretory system remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process in which waste was removed from the body.
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Why is it important that our cell cycle stays in homeostasis?
Answers
Answer:
Cell cycle control is an example of a homeostatic mechanism that maintains proper cell function and health. While progressing through the phases of the cell cycle, a large variety of intracellular molecules provide stop and go signals to regulate movement forward to the next phase.
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Glucose in the renal tubules encountering luminal epithelia can be absorbed via the ____________ route by passing through the plasma membrane of the absorptive cell.
Answers
Answer:
The word is Transcellular.
Coming from words that mean sugar coat, the layer of carbohydrates coating a cell membrane is called the.
Answers
Glycocalyx is referred to the the layer of carbohydrates coating a cell membrane.
What is Cell membrane?This a layer of the cell which separates the external environment from the internal structures in cells. It helps to protect cells from external and environmental factors.
Cell membrane is made up of compounds such as carbohydrate in which glycocalyx is responsible for its coating.
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when a child is upset, parents can respond in many different ways. what kinds of emotion coaching are most likely to promote constructive emotional self regulation
Answers
The most effective emotion coaching techniques for promoting constructive emotional self-regulation in children are empathy, validation, and problem-solving.
Empathy involves acknowledging the child's feelings and showing understanding, which helps the child feel supported and less alone in their emotions. Validation refers to recognizing the legitimacy of the child's emotions, demonstrating that their feelings are important and normal. Problem-solving involves helping the child identify coping strategies or solutions to manage their emotions effectively.
In summary, when a child is upset, parents can best promote constructive emotional self-regulation by utilizing empathy, validation, and problem-solving techniques in their emotion coaching approach.
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An investigator wishes to use animals in an experiment that involves category B, C, and D activities performed on the same animal. How should the animal be categorized?A. Categories B, C, and D. B. Category B. C. Category C. D. Category D
Answers
When doing activities that fall under USDA pain categories B, C, or D on the same animal, the animals utilized in the experiment should be placed in USDA category D.
The level of pain that an animal employed in testing and research may experience is categorized using the USDA pain categories. These are the categories:
USDA B: The animal won't experience any type of suffering.
USDA C: The animal may experience sporadic little pain.
USDA D: Excruciating processes that medication will lessen.
USDA E: Excruciating processes that cannot be eased.
According to Category B, the animal won't experience pain. These animals are frequently utilized for breeding, which is a natural procedure that doesn't harm the animals.
In contrast to animals in category E, animals in category D undergo unpleasant or stressful operations and are given anaesthetics and other pharmacological agents to lessen or totally relieve the discomfort.
There is a rigid rule for these categories. Because the experiment will include USDA B, C, and D procedures, the animals must be classified according to the USDA category that will involve the most painful technique.
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I hope all of you are having a good day! Can someone please explain a food web to me? I don't understand it very well.
Answers
Answer:
A food web consists of all the food chains in a single ecosystem. ... Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web
regulatory sequences in bacterial operons are transcribed and translated. constitutively expressed. transcribed but not translated. protein binding sites that are transcribed but not translated. sites where proteins can bind to alter expression of the operon.
Answers
Regulatory sequences in bacterial operons are sites where proteins can bind to alter expression of the operon. Therefore the correct option is option D.
Genes that are constitutively expressed run continuously in every cell and don't need to be regulated.
Promoters and enhancers are examples of transcriptional regulatory elements that are transcribed but not translated. These DNA sequences regulate transcriptional initiation and elongation by binding to RNA polymerase and regulatory proteins.
Protein binding sites that are transcribed but not translated can be found in some eukaryotic systems but are uncommon in bacteria. It consists of sequences that bind to regulatory proteins but do not translate into proteins. Therefore the correct option is option D.
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4
2) Minnie wants to investigate the way changes in the hours of daylight affect the loss of leaves in maple trees. What is Minnie most likely to include in her investigation?
A) Some plants will be fertilized.
B) Some plants will be placed in drought conditions.
C)
Some plants will be places in complete darkness for a long time.
D) Some plants are in environments in which sunlight is constant.
Answers
Some plants will be placed in complete darkness and some will be placed where sunlight is constant. So the correct option is C and D.
What is the effect of sunlight on plant growth?
Carbon dioxide from the atmosphere is absorbed by plant leaves, while water is absorbed by roots. The energy plants require to transform carbon dioxide and water into carbohydrates and oxygen is provided by sunlight. In order to enhance crop biomass and support vegetative and reproductive development, photosynthesis produces carbohydrates. Photosynthesis can only take place in the daylight since it requires sun energy.
The quantity of water vapor present in the atmosphere has an influence on the quantity of solar energy that reaches a crop. By reflecting solar radiation back into space and keeping it from reaching crops, clouds limit solar radiation. Future cloud cover will gradually decrease as the number of greenhouse gases in the atmosphere rises, which will contribute to greater global warming.
Therefore the correct options are C and D.
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what color compares all wavelengths of light
Answers
Answer:
Range of the visible spectrum
colour* wavelength (nm) frequency (1014 Hz) energy (eV)
*Typical values only.
red (limit) 700 4.29 1.77
red 650 4.62 1.91
orange 600 5.00 2.06
yellow 580 5.16 2.14
green 550 5.45 2.25
cyan 500 5.99 2.48
blue 450 6.66 2.75
violet 400 7.50 3.10
i need help answering these questions
Answers
Answer: A
Explanation:
Nonselective beta blockers and alcohol create serious drug interactions with insulin because they:_________
Answers
Nonselective beta blockers and alcohol create serious drug interactions with insulin because they mask the symptoms of hypoglycemia. This can lead to a person with diabetes not realizing that their blood sugar is too low, and they may not take steps to correct it.
Beta blockers work by blocking the effects of adrenaline, which is a hormone that is released in response to low blood sugar. This means that if a person with diabetes is taking a beta blocker and their blood sugar drops, they may not experience the usual symptoms of hypoglycemia, such as shakiness, sweating, and nausea.
Alcohol also has a hypoglycemic effect, so drinking alcohol while taking a beta blocker can further increase the risk of hypoglycemia. The symptoms of hypoglycemia are typically caused by the release of adrenaline. Adrenaline causes the heart to beat faster, the liver to release glucose, and the muscles to start burning glucose for energy.
Beta blockers block the effects of adrenaline, so they can prevent the release of adrenaline in response to low blood sugar. This means that people who take beta blockers may not experience the usual symptoms of hypoglycemia, even if their blood sugar is very low.
Alcohol also has a hypoglycemic effect. This is because alcohol can interfere with the liver's ability to release glucose.
If a person with diabetes is taking a beta blocker and they drink alcohol, they are at an increased risk of hypoglycemia. This is because the beta blocker will prevent the release of adrenaline, and the alcohol will further interfere with the liver's ability to release glucose.
It is important for people with diabetes who are taking beta blockers to be aware of the risk of hypoglycemia. They should monitor their blood sugar closely, especially if they are drinking alcohol. If they experience any symptoms of hypoglycemia, they should take steps to correct it immediately.
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Extra food is stored in a roots _______?
A.vascular cylinder
B.cortex
C.epidermis
D.pith
Answers
A forest is an ecosystem in which different species of trees, insects, shrubs, and animals interact. How would the sustainability of a forest ecosystem be affected if the biodiversity of the forest increased?
A.
The sustainability of the forest ecosystem would decrease because there would be fewer interactions between different species.
B.
The sustainability of the forest ecosystem would increase because there would be more interactions between different species.
C.
The sustainability of the forest ecosystem would decrease because there would be more interactions between different species.
D.
The sustainability of the forest ecosystem would increase because there would be fewer interactions between different species.
Answers
Answer:
Answer B
Explanation:
Sustainability relies on organisms helping each other in the food chain and in other interactions. If the biodiversity (range in different species) increased, there would be more types of organisms in that forest. This greatly increases sustainability. Example: An owl eats mice. If another type of rodent is introduced to the forest, the owl has even more food, if something were to happen to the mice. Sustainability in an ecosystem is how long it can stay alive. More species means more food sources for more species. Hope this helped! =)
The sustainability of the forest ecosystem would increase because there
would be more interactions between different species.
Biodiversity involves an ecosystem having a large amount of species of
different organisms. The large amount of organisms found in ecosystems
with high biodiversity means that there would be an increase in the
interaction between the organisms.
The interactions could be during the search of food or by living together in
the same forest ecosystem. This brings about an increase in sustainability
due to organisms having different food alternatives needed for their survival.
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At pH 7.0, in what order would the following three peptides (described by their amino acid composition) be eluted from a column filled with a cation-exchange polymer? Peptide A: Ala 10%, Glu 5%, Ser 5%, Leu 10%, Arg 10%. His 5%, Ile 10%. Phe 5%,Tyr 5%, Lys 10%, Gly 10%, Pro 5%, and Trp 10%. Peptide B: Ala 5%. Val 5%, Gly 10%, Asp 5%, Leu 5%. Arg 5%, Ile 5%, Phe 5%,Tyr 5%, Lys 5%, Trp 5%, Ser 5%, Thr 5%, Glu 5%, Asn 5%, Pro 10%. Met 5%, and Cys 5%. Peptide C: Ala 10%, Glu 10%, Gly 5%, Leu 5%, Asp 10%, Arg 5%, Met 5%, Cys 5%,Tyr 5%, Phe 5%, His 5%, Val 5%, Pro 5%, Thr 5%, Ser 5%, Asn 5%, and Gln 5%.
Answers
The order of the three peptides is Peptide C, Peptide A, Peptide B.
A cation-exchange column is a type of chromatography that separates molecules based on their net charge. At a neutral pH of 7.0, the charge of a peptide depends on the distribution of positively charged and negatively charged amino acids within its sequence.
The order of elution from a cation-exchange column can be predicted based on the net charge of each peptide. At neutral pH, positively charged amino acids like arginine, lysine, and histidine will have a positive charge, whereas negatively charged amino acids like aspartic acid and glutamic acid will have a negative charge.
Peptides with more positively charged amino acids will bind more strongly to the negatively charged cation-exchange polymer and will be eluted later.
Based on this information, we can predict the order of elution of the three peptides as follows:
Peptide C, which has the highest concentration of negatively charged amino acids, will be eluted first.
Peptide A, which has a balanced distribution of positively and negatively charged amino acids, will be eluted next.
Peptide B, which has the lowest concentration of negatively charged amino acids, will be eluted last.
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Which series is arranged in the correct order according to the decreasing size of
structures?
a) DNA, nucleus,
chromosomes, nucleotide, nitrogenous base.
b) Nucleotide, chromosome, nitrogenous base, nucleus, DNA.
c) Nucleus, chromosome, DNA, nucleotide, nitrogenous base
d) Chromosome, nucleus, nitrogenous base, nucleotide, DNA.
Answers
Answer:b) Nucleotide, chromosome, nitrogenous base, nucleus, DNA.
It should be noted that the series of arrangement in the correct order according to the decreasing size of structures is b) Nucleotide, chromosome, nitrogenous base, nucleus, DNA.
What is structures?structure can be regarded as the arrangement or organization of parts to form an organ, system, or living thing.
Structure can be varies in size and shape, however, base on the given option, the best arrangements is Nucleotide, chromosome, nitrogenous base, nucleus, DNA.
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what is the function of the operator region of the trp operon? provides a site for rna polymerase to bind codes for the corepressor codes for the repressor provides a site for the repressor to bind
Answers
A binding site for the repressor is provided by the operator region of the trp operon's function. The correct answer is (D).
The trp repressor, a regulatory protein, recognizes this section of DNA. By physically obstructing RNA polymerase, the transcription enzyme, the repressor prevents the operon from being transcribed when it binds to the operator's DNA.
The repressor is able to bind to the operator site because the corepressor binds to the repressor protein and alters its conformation.
The repressor molecule binds to the operon model at the operator, which is the DNA segment. Both prokaryotes and eukaryotes contain them. Only prokaryotes contain them. In eukaryotes, it works with the limiting of record elements and RNA polymerase for quality records.
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Q- What is the function of the operator region of the trp operon?
A. Codes for the repressor
B. Codes for the corepressor
C. Provides a site for RNA polymerase to bind
D. Provides a site for the repressor to bind
honey badgers like to eat honey. honeyguide birds lead honey badgers to beehives, and the badgers break the hives open. honeyguide birds feed on the honey, as well. which type of relationship is this?
Answers
The type of relationship between honey badgers and honeyguide birds in which honeyguide birds lead honey badgers to beehives and both species benefit from the honey is known as mutualism.
The honeyguide birds benefit from the honey that the badgers break open, while the badgers benefit from the guidance provided by the birds to locate the beehives. This mutually beneficial relationship allows both species to thrive in their ecosystem. The relationship between honey badgers and honeyguide birds, where honeyguide birds lead honey badgers to beehives, and both species benefit from the broken hives by consuming honey. This type of relationship is called mutualism.
In a mutualistic relationship, both species involved benefit from their interaction with each other. In this specific case:
1. Honeyguide birds lead honey badgers to the beehives. 2. Honey badgers break open the hives, allowing both species to access the honey. 3. Both the honey badgers and honeyguide birds feed on the honey.
This mutualism is advantageous for both honey badgers and honeyguide birds, as it helps them locate and access a valuable food source.
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What do antibodies bind together
Answers
Answer:
C
Explanation:
it recognize foreign substances such as bacteria
heat transfers from an area of ___ to ___ temperature
Answers
Answer:
hot to cool..
Explanation:
Hope i helped✌✌
Heat transfers from an area of cold to hot temperature.
What do you mean by heat?Heat is the transfer of kinetic energy from one medium or object to another, or from an energy source to a medium or object. Such energy transfer can occur in three ways: radiation, conduction, and convection.
Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy.
Thermal energy (also called heat energy) is produced when a rise in temperature causes atoms and molecules to move faster and collide with each other. The energy that comes from the temperature of the heated substance is called thermal energy.
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which of the following statement(s) are true about the atoms of any element? a. the number of protons in an atom of an element is unique to each element b. the number of protons and neutrons in ana atom of an element is unique to each element c. a proton is an atom of one element that is identical to a proton in an atom of another element d. the number of protons in an atom of an element is the same for all elements
Answers
Answer:
I think it's A
Explanation:
I'm guessing but i feel like it's def not D
3) which is not an example of dissolving
a) oxygen in water
b)sugar in water
c)salt in water
d)water in water
Answers
Answer:
Answer below!
Explanation:
Sugar and Salt ALWAYS dissolve in water no matter what. Water can dissolve in water so therefore your answer is A). Oxygen.
Comparing The integumentary system of a FROG with The integumentary system of aHUMAN???1.What are the differences in the frogintegumentary body system and that of ahuman integumentary body system?2.Then, what are the similarities in the frogintegumentary body system and that of ahuman integumentary body system?3. Then write a presentation comparing the frog to the human integumentary body system
Answers
The integumentary system is the definite structures creating the outmost part of body of an animal. The following are the differences of the frog and human integumentary system:
a. The integumentary system of a frog can take in water while the integumentary system of human is waterproof.
b. The frog's skin is important for thermoregulation and respiration while the human's skin is important for thermoregulation and protection.
c. The integumentary system of a frog consists the epidermis and dermis while the integumentary system of human consists of epidermis, dermis, and subcutaneous layer.
d. The skin of a frog harbors mucus and poisons while the skin of human harbors sweat and sebum.
e. The skin of the frog is thin, slippery and damp while the skin of human varies from dry to oily.
f. The skin of the frog consists of scales while the skin of human consists of fingernails and hair.
The fundamental difference between the frog and human integumantary system is their framewrok and specific purposes.
The distinct structures that make up an animal's outermost body part are known as its integumentary system.
What is Integumentary system?
The integumentary systems of frogs and humans differ in the following ways. The human integumentary system is waterproof, whereas the integumentary system of a frog can absorb water.
The skin of frogs is crucial for respiration and temperature regulation, whereas the skin of humans is crucial for both protection and temperature regulation.
The epidermis and dermis make up the integumentary system of a frog, whereas the epidermis, dermis, and subcutaneous layer make up the integumentary system of a human. A frog's skin contains mucus and toxins, whereas a human's skin contains perspiration and sebum.
Therefore, The distinct structures that make up an animal's outermost body part are known as its integumentary system.
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How are gems and precious metals similar?
They are both very common minerals.
They are both easily bent and shaped.
They both have metallic lusters.
They are both rare, valuable minerals
Answers
Answer:
D. they are both rare, and valuable minerals.
the nutrients of ________ protect our organs and insulates us from cold.
Answers
The nutrients of fat protect our organs and insulates us from cold. Fat is an essential nutrient that serves many important functions in the body.
It is a major source of energy, helps in the absorption of fat-soluble vitamins, and provides cushioning and insulation to our organs.
In fact, our vital organs like the heart, liver, and kidneys are protected by a layer of fat that acts as a shock absorber.
Additionally, fat provides insulation to our body, helping to maintain our core temperature in cold weather.
While it's important to maintain a healthy body weight, consuming healthy sources of fat, such as avocado, nuts, and olive oil, can provide many benefits to our health.
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in a balanced translocation carrier, when chromosomes that are next to each other within the translocation cross sort into the same daughter cell, the pattern is called
Answers
In a balanced translocation carrier, when chromosomes that are next to each other within the translocation cross sort into the same daughter cell during meiosis, this is called adjacent segregation.
A translocation carrier is a person who carries a balanced translocation, which is a type of chromosomal abnormality where a piece of one chromosome breaks off and is exchanged with a piece of another chromosome. This exchange can occur between two non-homologous chromosomes or between two homologous chromosomes.
This can result in two different types of gametes: one with both translocated chromosomes and one with both normal chromosomes. In contrast, when chromosomes segregate normally during meiosis, there are four different types of gametes produced, each with a different combination of translocated and normal chromosomes.
The consequence of adjacent segregation in a translocation carrier is that some of their offspring may inherit unbalanced translocations, which can cause genetic disorders or birth defects. On the other hand, if chromosomes segregate normally during meiosis, the offspring will be unaffected carriers of the balanced translocation.
Therefore, it is important for translocation carriers to receive genetic counseling and undergo prenatal diagnosis to determine the risk of having offspring with chromosomal abnormalities.
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What gas is made and released during Cellular respiration? What step does this happen in? A) CO2, Krebs Cycle B) O2, Calvin Cycle C) O2, Krebs Cycle D) CO2, Calvin Cycle
Answers
Answer:
Option A CO2,Kreb's cycle is the correct option
Explanation:
why are seeds reproductively superior to spores? a. only seeds can survive for an extended period of time. b. seeds are protected by a multicellular seed coat. c. seeds contain a young plant, survive for an extended period of time and also are protected by a seed coat. d. seeds are used as a food source for humans. e. seeds contain a multicellular young plant.
Answers
Seeds are reproductively superior to spores as seeds contain a young plant and also are protected by a seed coat.
Plants, fungi, and some bacteria have the ability to reproduce through the use of seeds and spores.
The term "seed" refers to the matured, fertilized ovule that houses an embryonic plant, stored material, and one or more protective coatings. A mature ovule that contains an embryo, a little immature plant, and food reserves inside of a protective seed coat is called a seed.
Seed has Seed Coat which provides food and protection that spores cannot access. Additionally, although spores require a reproduction process before they are prepared to grow, seed coats already contain an embryo that is completely grown and ready to develop.
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living things making new living things like themselves like these bacteria
O homeostasis
O cell
O growth
O reproduction
Answers
Answer:
Reproduction
Explanation:
The answer would be reproduction because it is creating a new living thing.