Lipids are...
A. Protein molecules
B. Similar to water molecules
C. Polar molecules
D. Nonpolar molecules
Answers
Answer:
The answer you are looking for is D.
Explanation:
Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and function of living cells. (non- polar molecules)
Lipids are fat molecules and are hydrophobic (water repulsive) in nature. Thus, option D is correct.
What are Lipids?Lipids are important biomolecules and are widely distributed in biological systems. Lipids are organic macromolecules.
Lipids are insoluble in water (polar) and require non-polar solvents mainly hydrocarbons for dissolution like petroleum, ether etc. Thus, non-polar in nature.
Lipids include array of molecules like fats, wax, steroids, vitamins (fat-soluble; A,D, E and K), hormones, oils etc and have diversified functions.
Lipids form an integral part of the cell membrane. It also surrounds membranous structures. It protects the cellular membranes by creating an insulating layer.
Lipids are essential for storing and conserving energy in mammalian body. It helps in metabolism of glucose by converting extra glucose to glycogen in adipose tissues.
Lipids also act as transport molecules in the body. Many lipids function as chemical messengers.
Therefore, Lipids play a pivotal role in living system.
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Related Questions
Discussion 1. What percentage of asci observed resulted from the fusion of cells from different strains? 2. What percentage of those asci resulting from the fusion of different strains demonstrates crossovers?
Answers
During the study of genetics and inheritance, it is important to observe the sexual cycle of fungi to determine the genetic variations within the offspring. In the 1920s, T. H. Morgan and his colleagues used fungal genetics to test the hypothesis of the existence of recombination. For instance, they observed the sexual cycle of the common bread mold, Neurospora crassa, to investigate how crossing-over occurs between homologous chromosomes during meiosis.
As a result of their investigation, Morgan and his colleagues discovered that, during meiosis, four haploid ascospores are produced within a specialized sac called an ascus. These ascospores are produced when two nuclei from two different hyphae (cells) combine and fuse together.
This fusion creates a cell with two haploid nuclei, which subsequently undergoes meiosis to create four haploid ascospores. Hence, an ascus will contain four haploid ascospores produced by a single diploid cell resulting from the fusion of two haploid cells.
The percentage of asci observed that resulted from the fusion of cells from different strains is 100%. This is because the fusion of haploid cells from different strains is essential for the production of a diploid cell that will then undergo meiosis to form four haploid ascospores.
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the scala of the cochlea which houses the actual hearing apparatus
Answers
The cochlear duct or scala media is the scala of cochlea that houses the actual hearing apparatus.
The cochlear duct is a fluid-filled compartment located between the cochlea's two other scalae, the scala vestibuli and the scala tympani.
The spiral organ of Corti, which is the main sensory organ for hearing, is located in the cochlear duct.
Corti's spiral organ contains specialised hair cells that convert sound waves into electrical signals that are sent to the brain for interpretation.
As sound waves pass through the cochlea, the fluid in the cochlear duct vibrates, causing hair cells to move and generate electrical signals.
Thus, these signals are then transmitted to the brain via the auditory or hearing nerve and interpreted as sound.
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Drag a "P" into the box if the statement is describing Photosynthesis. Drag an "R" into the box if the statement is describing Respiration. Drag a "B" into the box if the statement is describing BOTH Photosynthesis AND Respiration. Drag an "N" into the box if the statement is describing NEITHER process.
Answers
Answer:
1. P
2.P
3.R
4.R
.5.R
6.B
7.R
8..P
9.P
10..P
11.R
12.P
13.P
14.R
15.R
16.N
17.N
18.P
19.R
20.B
21. R
Explanation:
Photosynthesis is a process in which carbondioxide gas react with oxygen in the presence of solar radiation produces oxygen and glucose. oxygen is released in the atmosphere while glucose s stored in different part of plant body while on the other hand in respiration, glucose is broken down in the presence of oxygen produces carbondioxide, water and energy in the form of ATP.
Ecology Consider a ecological system of plants, rabbits and foxes Let 's assue that when one group 'eats another it is able to produce an equal number of offspring: So if a rabbit eats plant, a ICW rabbit will be born the next day. Each very eventful) day The rabbits eat 30% of all the plants The foxes eat 20% of all rabbits The plants eat 15% of the rabbits and foxes As directed graph;, this system might look like this: Plants '5 J 3 Rabbits Foxes Let the vector represent the population of plants, rabbits and foxes Onl sOmC day: plants `eating animals can be explained by the death and decomposition of the animal which fertilizes soil for plants to grow.
Answers
In the ecological system described, the interactions between plants, rabbits, and foxes form a food chain where each organism is connected to another through feeding relationships. The plants serve as the primary producers, converting sunlight into energy through photosynthesis.
The rabbits consume a portion of the plant population, while the foxes prey on the rabbits. This interconnectedness is illustrated by the directed graph provided, showing the flow of energy and resources through the system.
When plants consume rabbits and foxes, it represents the process of decomposition and nutrient recycling in the ecosystem. When animals die and decompose, their organic matter is broken down by decomposers like bacteria and fungi. This decomposition releases nutrients back into the soil, making them available for uptake by plants. In this way, the plants benefit from the nutrient-rich soil, enabling their growth and development.
The recycling of nutrients through the consumption and decomposition of organisms is a fundamental process in ecosystems. It ensures the cycling of vital elements like carbon, nitrogen, and phosphorus, allowing them to be reused by different organisms at different trophic levels. In this particular system, the plants benefit from the decomposition of rabbits and foxes, which contributes to their overall productivity.
It is important to note that in real ecosystems, the interactions and energy flow are more complex than this simplified model. Additional factors such as predation, competition, and other ecological processes influence the population dynamics and stability of the system. Nonetheless, the concept of nutrient recycling through decomposition highlights the interconnectedness and interdependence of different organisms in an ecological community.
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Disease cause by lack of vitamin b
Answers
Explanation:
Numbness or tingling in hands, legs, and feet
Difficulty walking
Anemia
A swollen tongue
Jaundice
Cognitive changes
Hallucinations
Paranoia
Weakness
Fatigue
5) What is the contour interval used on this map?
Answers
The contour interval is 20 on this topographic map.
Explanation:
On this topographic map, we can see that the elevation is represented with contour lines, as is in most cases. Not all contour lines have a number next to them that tells us what is the particular elevation, but only every fifth contour line is numerically marked. The reason for this is so that there isn't too much information on the map that will obstruct the purpose of it.
The three contour lines that are numerically marked have values of 100, 200, and 300. As mentioned, the numerically marked contour lines are the fifth ones, so between the one with a value of 100 and 200, there are five contour lines. In order to get the contour interval, we simply need to divide with five the difference between two neighboring numerically marked contour lines.
100 / 5 = 20
The value of the contour interval is 20.
which of the following establishes descent group membership exclusively through the male or the female line? group of answer choices matrilineal descent unilineal descent kinship bilineal descent
Answers
Answer:
Unilineal descent.
A scientist crosses a brown guinea pig with a white guinea pig several times, he has a
phenotypic ratio of 1 brown, 2 spotted and 1 white, is this an example of complete
dominance or incomplete dominance? Explain your answer.
no
Answers
The thoracic duct ascends through the posterior mediastinum, between the thoracic aorta on the left and the azygos vein on the right. Question 1 options:
True
False
Answers
True. The thoracic duct is the largest lymphatic vessel in the body and plays a crucial role in the lymphatic system. It begins in the abdomen, near the second lumbar vertebra, and ascends through the posterior mediastinum of the thoracic cavity.
It runs behind the esophagus and in front of the vertebral bodies, alongside the thoracic aorta on the left side. As it continues its ascent, it curves to the left and passes behind the aortic arch and left bronchus. Eventually, it reaches the base of the neck, where it drains into the left subclavian vein.
This anatomical pathway allows the thoracic duct to effectively collect lymphatic fluid from the lower extremities, abdomen, and left upper body, and return it to the bloodstream.
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Describe the haemolytic disease of the newborn and describe the solution available illustrate the concepts of immunity in your answer.
Answers
A space used in industry or research settings that has a controlled level of contaminants is called a __________.
Answers
Answer:
Clean room.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
Cause and effect can be defined as the relationship between two things or events in which an occurrence one (cause) leads to the occurrence of another (effect).
Hence, a space used in industry or research settings that has a controlled level of contaminants is called a clean room.
A clean room refers to environment or laboratory that is typically free from dust, pollution or any form of contaminants, used for carrying out experiments and manufacturing processes.
this is another question I need help with plz
Answers
Answer:
The endoplasmic reticulum, Golgi apparatus, and lysosomes are thus distinguished from other cytoplasmic organelles by their common involvement in protein processing and connection by vesicular transport.
endoplasmic reticulum (ER) (DEFINITION) Organelle in eukaryotic cells that helps make and transport proteins; site of lipid synthesis.
Golgi apparatus (DEFINITION) Organelle in eukaryotic cells that processes proteins and prepares them for use both inside and outside the cell.
-Nucleus: DNA to MRNA
-Ribosome: mRNA translated into a polypeptide
-Endoplasmic Reticulum: polypeptide processing
-Transport Vessicle: Take pro-protein from ER to golgi
-Golgi Apparatus- sorting and packaging protein into vessicles
-Transport Vessicle: Takes protein to cell membrane or lysosome (to be broken down)
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A DNA strand has the sequence ACCGAGCTT. Which is the complementary strand of RNA?
Answers
Answer:
the second one
Explanation:
it is UGGCUCGAA
how many reservoirs make up the carbon cycle?
A) Five
B) Six
C) Three
D) Four
Answers
Answer:
four
Explanation:
this is the answer to the question
if the f2 generation is three-fourths red and one-fourth yellow, what was the genotype of the unknown butterfly?
Answers
Answer:
Assuming that true breeding lines are used, the genotype of the unknown butterfly would be heterozygous. This is because a heterozygous cross would produce an F2 generation that is three-fourths red and one-fourth yellow.
what best describe the progress of science
Answers
Answer:The progress of science is the continuous accumulation of knowledge through observation, experimentation, and theory. It involves developing theories, using advanced technology, collaborating across disciplines, and rigorous peer review. Paradigm shifts and breakthrough discoveries challenge existing theories. Science's impact is seen through practical applications in medicine, technology, and other fields, improving our quality of life. It is an iterative process that refines our understanding of the natural world.
Explanation:
Using the product rule, calculate the probability that two human parents would have a female child
A chance mother contributes X = 1 chance father contributes X = 0 1 + 0 = 1chance mother contributes X = 1 chance father contributes X = 0 1 + 0 = 1
B chance mother contributes X = 1 chance father contributes X = 1/2 1 X 1/2 = 1/2chance mother contributes X = 1 chance father contributes X = 1/2 1 X 1/2 = 1/2
C chance mother contributes X = 1/2 chance father contributes X = 1/4 1/2 X 1/4 = 1/8chance mother contributes X = 1/2 chance father contributes X = 1/4 1/2 X 1/4 = 1/8 D chance mother contributes X = 1/2 chance father contributes X = 1/2 1/2 X 1/2 = 1/4
Answers
The probability of two human parents producing a female child is 1/2; option B.
What is the probability of two human parents producing a female child?The probability of two human parents producing a female child can be determined using the product rule.
The X chromosome determines that a child is a female whereas the Y chromosome determines that a child is male.
the mother has two X chromosomes; XX
the father has one X chromosome and one Y chromosome; XY
the probability that the mother contributes X = 1
the probability that the father contributes X = 1/2
The probability that the parents will have a female child = 1 * 1/2
The probability that the parents will have a female child = 1/2
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Relate the rate of photosynthesis in the UAE to the atmospheric conditions.
Answers
The rate of photosynthesis in the UAE is affected by several atmospheric conditions, including temperature, humidity, light intensity, and the concentration of atmospheric gases such as carbon dioxide.
What is photosynthesis?Photosynthesis is the biological process by which plants, algae, and some bacteria convert light energy into chemical energy. It is the process by which these organisms produce organic molecules, such as glucose, from carbon dioxide and water.
In general, the UAE has a hot and dry desert climate, with high temperatures and low humidity levels. These conditions can have both positive and negative effects on photosynthesis.
The rate of photosynthesis in the UAE is affected by a complex interplay of atmospheric conditions, including temperature, humidity, light intensity, and the concentration of atmospheric gases, particularly carbon dioxide.
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which statements describe an osteon?multiple select question.it contains a central canalit runs parallel to the diaphysis of a long boneit runs perpendicular to the diaphysis of a long boneit is also called a haversian systemit is microscopic
Answers
The correct statements describing an osteon are:
- It contains a central canal.
- It is also called a haversian system.
- It is microscopic.
Understanding OsteonAn osteon, also known as a haversian system, is a fundamental structural unit of compact bone tissue. It consists of concentric layers of bone called lamellae surrounding a central canal called the Haversian canal. The central canal contains blood vessels, nerves, and connective tissue. Osteons run parallel to the diaphysis (the long axis) of a long bone, not perpendicular to it.
Additionally, osteons are microscopic structures visible only under a microscope.
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What is the growth rate of a population whose size is equal to the carrying capacity?
a. zero
b. decreasing
c. increasing
d. fluctuating
Answers
I think
Good luck!!
Answer:
zero
Explanation:
As population size approaches the carrying capacity of the environment, the per capita growth rate will decrease, eventually going to zero.
TRUE/FALSE. alcohol is quick to find its way to the brain because . the brain contains more blood the brain contains more oxygen the central aorta supplies it of the brain's elevated location
Answers
It is true that alcohol is quick to discover its way to the brain due to the fact that the brain contains more blood.
The brain receives an abundant supply of blood and since alcohol enters the bloodstream after leaving the gastrointestinal tract, therefore, alcohol quickly finds its way to the brain. This is also due to the fact that alcohol can pass through the blood-brain barrier which provides protection to the brain from potentially harmful substances of foreign origin.
However, alcohol is able to pass through this blood-brain barrier very easily due to its certain chemical properties. Even though alcohol is slightly polar, it is also lipophilic due to which it is able to mix easily with the fat in the membrane.
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In response to a cold environment, lizards sun basking in the open habitats. This type of response is a... a. Morphological alteration b. Physiological adjustment c. All choices are correct d. Life-history change e. Behavioral modification
Answers
The type of response described, where lizards sun bask in open habitats in response to a cold environment, is an example of e. Behavioral modification.
Behavioral modification refers to changes in an organism's behavior in response to environmental stimuli or conditions. In this case, the lizards are exhibiting a specific behavior, sun basking, to regulate their body temperature and counteract the effects of the cold environment. By exposing themselves to the sun, they are able to absorb heat and warm their bodies.
Morphological alteration refers to changes in physical structures or traits, physiological adjustment involves changes in internal bodily processes, and life-history change refers to alterations in reproductive or developmental patterns. While these responses can also occur in certain contexts, the given scenario primarily involves a behavioral modification by the lizards.
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what physiological events occur between presentation and the pressing of the hand switch?
Answers
Physiological events such as sensory perception, neural processing, and motor response occur between presentation and the pressing of the hand switch.
When a stimulus is presented, sensory receptors in the body detect the stimulus and convert it into electrical signals. These signals are then transmitted to the brain through sensory pathways. In the brain, the signals are processed and interpreted, allowing for the perception and recognition of the stimulus. Once the stimulus is recognized, motor commands are generated in the brain and transmitted through motor pathways to the muscles responsible for hand movement. These commands initiate muscle contractions, leading to the pressing of the hand switch.
Overall, this sequence of physiological events involves sensory input, neural processing, and motor output, enabling the individual to perceive the stimulus and respond accordingly.
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In medusa's head, what is the main reason polydectes asks perseus to get the gorgon's head?
group of answer choices
he hopes perseus will die so that he can marry danae.
he is terrified of the gorgons.
he wants to impress danae so she will marry him.
he wants to prove how brave perseus is.
Answers
Polydectes, the king of Seriphos, asks Perseus to get the Gorgon's head in Medusa's head because he wants to get rid of him.
Polydectes is interested in marrying Perseus's mother, Danae, but Perseus is an obstacle to his plans. Polydectes asks for the Gorgon's head as a way of getting rid of Perseus, thinking that he will either die during the quest or fail to complete it. In either case, Polydectes would be free to pursue his own agenda without interference from Perseus. Polydectes is not afraid of the Gorgons, nor does he want to impress Danae by sending Perseus on a dangerous mission. Rather, he is cunning and manipulative, using the Gorgon's head as a means of achieving his own ends. Ultimately, Polydectes's plan fails, and Perseus returns victorious with the Gorgon's head, freeing his mother from Polydectes's grasp and securing his own place in Greek mythology as a hero.
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During cell reproduction, chromatin fibers coil up into structures called
a. chromosomes
b. lysosomes
c. nucleoli
d. ribosomes
Answers
During cell reproduction, chromatin fibers coil up into structures called chromosomes. Therefore, the correct option is A.
What are chromosomes?Chromosomes are structures made up of DNA and proteins that are found in the nucleus of the cell. They contain genetic information That are responsible for the inherited characteristics of the organisms such as eye color, hair color, height etc.
Chromosomes play a crucial role in cell division, as they ensure the proper distribution of genetic material to the daughter cells.
During cell division, chromosomes are replicated and then separated into daughter cells, ensuring that each cell receives a complete set of chromosome.
The number and arrangement of a chromosome vary depending on the species, but all human cells except the sperm and egg cell contains 23 pairs of chromosomes. Hence, the correct option is A.
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The proper function of the stomates on the leaf (and therefore, the function of water and CO2 movement) is influenced most by which element
Answers
Answer:
Sunlight.
Explanation:
Sunlight is responsible for proper functioning of stomata present on the leaves because the stomata only opens when there is sunlight and when the stomata opens, carbondioxide gas is absorbed by the leaves from the air while the water is taken from the roots which combines together to form glucose and oxygen. Glucose is stored in different parts of the plant while some oxygen is used by the plants in the process of respiration while the remaining oxygen is released in the atmosphere through stomata.
Describe The Phenomenon
Answers
Answer:
Phenomenon is a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question.
It is observable fact or event
please help me, I don't understand the answers and I'm bad at biology ;-;
Answers
the genetic code is degenerate because: group of answer choices not all possible codons are used to code for amino acids. one particular codon can code for more than one amino acid. one particular amino acid can be encoded by more than one codon. one particular amino acid can only be encoded by one codon.
Answers
The genetic code is degenerate because one particular codon can code for more than one amino acid.
The genetic code is a set of three-letter combinations of nucleotides called codons, each of which corresponds to a specific amino acid or stop signal. The concept of codons was first described by Francis Crick and his colleagues in 1961.
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What are some potential solutions you could foresee for solving this plastic problem? What can you do on a daily basis to reduce plastic waste?
Answers
Answer:
Below
Explanation:
There are several potential solutions to address the plastic problem. Here are some of them:
1. Reduce single-use plastics:
One of the simplest and most effective solutions to the plastic problem is to reduce the use of single-use plastics such as straws, bags, and utensils.
2. Increase recycling:
Improving recycling infrastructure and increasing the amount of plastic that is recycled can help to reduce the amount of plastic waste that ends up in landfills or in the ocean.
3. Develop biodegradable alternatives:
Researchers are working on developing biodegradable plastics and alternatives to plastics made from materials such as paper, bamboo, or cornstarch.
4. Implement extended producer responsibility:
Governments can implement policies that make producers responsible for the waste generated by their products, encouraging them to create products that are more easily recyclable and reducing waste overall.
5. Encourage behavior change:
Education and awareness campaigns can help to change people's behavior around plastic use, encouraging them to adopt more sustainable habits.
On a daily basis, there are several things you can do to reduce plastic waste:
1. Bring your reusable bags, water bottles, and coffee cups:
By bringing your reusable items, you can reduce the need for single-use plastics.
2. Say no to straws:
Refuse single-use plastic straws when you can.
3. Choose products with less packaging:
Look for products that are packaged in minimal packaging or packaging that can be easily recycled.
4. Recycle properly:
Learn what plastics are accepted for recycling in your area and make sure to clean and sort them properly.
5. Participate in clean-up events:
Join local clean-up events to help remove plastic waste from the environment.