BIOLOGY HIGH SCHOOL

Which of the following best shows how primary structure relates to protein function? a. High temperatures cause proteins to denature.
b. Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.
c. Proteins are sensitive to changes in pH.
d. The shape and chemistry of an enzyme's active site determine its function.

Answers

Answer 1
Answer:

A.) High temperatures cause proteins to denature.
Answer 2
Answer:

Final answer:

The sequence of amino acids, or the primary structure, in a protein determines its shape and function. Changing one amino acid in hemoglobin results in sickle-cell anemia, showing that small alterations in the primary structure can have significant impacts on protein function.

Explanation:

The primary structure of a protein is important in determining its function. It refers to the sequence of amino acids that make up the protein chain. The option that illustrates this relationship is b. Changing one amino acid in the protein hemoglobin causes sickle-cell anemia.

This statement is valid because the amino acid sequence (primary structure) determines the shape the protein takes. In the case of hemoglobin, a single amino acid substitution causes a significant enough alteration in shape to result in the harmful condition of sickle-cell anemia, thus clearly showing the link between primary structure and protein function.

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During which stage of cellular respiration is glucose broken down into two molecules of pyruvic acid?a.)electron transport chain b.)glycolysisc.)Krebs cycled.)acetyl CoA formation

During diffusion, molecules move

Answers

Answer:

The correct answer will be- the molecules move from high concentration  to low concentration.

Explanation:

Diffusion represents the movement of solute particles that is ions or molecules. The movement is driven by the concentration gradient that is from the higher concentration to lower concentration.

The diffusion can be categorized into two types: simple and facilitated diffusion.  In biology, diffusion plays an important role as the important solute particles move into and out of the cell through this process.

Thus, the molecules move from high concentration to low concentration is the correct answer.

Final answer:

During diffusion, molecules move from area of high concentration to an area of low concentration to achieve equilibrium.

Explanation:

During diffusion, molecules move from an area of high concentration to an area of low concentration. This happens due to the random motion of the molecules. The goal of diffusion is to achieve equilibrium, where the concentration is equal throughout the space.

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What are the negatives of having lysosomes

Answers

they can explodeand kill the cell, thats why they are nicknamed "suicide bags"

In order for a population to survive, sexual reproduction must produce A) more females than males. B) more males than females. C) more offspring that can survive and reproduce. D) a large number of self-fertilized individuals.

Answers

The answer is C) more offspring that can survive and reproduce.

In order for a population to survive, there must be enough offspring at least to maintain the number of population. It is better if there are more offspring able to survive and reproduce and species evolved different strategies to achieve this, such as care for the offspring.
On the other hand, neither more males nor more females will help a population to survive. There will be no variability in a gene pool because one male will cross with many females and vice versa. And with greater variability of characteristics, the greater is the chance to survive. Also, a large number of self-fertilized individuals could not be the right answer because this is an example of asexual (self-fertilization) reproduction.

c. more offspring that can survive and reproduce.

What are the stages of the cell cycle in order?

Answers

interphase, prophase, metaphase, anaphase and telophase.

Higher animals and plants most likely have

Answers

Higher animals and plants most lively have oogametes 

Answer:

its oogametes

Explanation:

A(n) _______ is a characteristic arising from genes located on chromosomes that are not gender-determining.A. genotype
B. allele
C. sex-linked trait
D. autosomal trait

Answers

The correct answer is D. Autosomal chromosome.

An autosomal chromosome is a characteristic which arises from genes which are located in the chromosomes that are not gender-determining. The autosomal trait does not depend on sex.
Its function is to pass genetic traits from mother and father to the child. Traits can be recessive or dominant. When someone has green eyes we say he/she is recessive trait and not dependent on the sex of the child.
In each cell, people have 22 pairs of autosomes plus two sex chromosomes which Y and X in male and XX in the female.
Out of the following choices, an autosomal trait is a characteristic arising from genes located on chromosomes that are not gender-determining. 
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