The covalent bonds between the monomers of an enzyme macromolecule are:
A. Ester bonds
B. Peptide bonds
C. Phosphodiester bonds
D. Glycosidic bonds
The correct answer is b. Peptide bonds. Enzymes are proteins, and proteins are made up of amino acid monomers linked together by peptide bonds. A peptide bond is a covalent bond that forms between the carboxyl group of one amino acid and the amino group of another amino acid.
a. Ester bonds are covalent bonds that form between a carboxylic acid and an alcohol.
c. Phosphodiester bonds are covalent bonds that form between a phosphate group and two hydroxyl
groups.
d. Glycosidic bonds are covalent bonds that form between two monosaccharides.
Therefore, the Correct Answer is B.
More Questions on TEAS 7 Science
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Q #1: Which of the following growth curves shows a population that is at its carrying capacity?
A. B
B. C
C. A
D. D
Answer Explanation
A population is said to be at its carrying capacity when it has reached the maximum number of individuals that can be sustained in a particular environment over a prolonged period of time, given the available resources and the prevailing environmental conditions.
In other words, carrying capacity refers to the maximum population size that a given ecosystem can support without being depleted of resources or experiencing environmental degradation. Once a population reaches its carrying capacity, its growth rate slows down and stabilizes, as individuals start to compete more intensely for resources such as food, water, and shelter, and mortality rates increase.
Carrying capacity is an important concept in ecology and population biology because it helps to explain the dynamics of natural populations and how they are influenced by changes in the environment, such as climate change, habitat loss, and human activities.
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Q #2: Emphysema caused by damage to alveoli from toxins and pollutants is likely to result in the body having difficulty performing which of the following actions?
A. Releasing histamine and acetylcholine
B. Exchanging oxygen and carbon dioxide
C. Absorbing food
D. Producing enzymes
Answer Explanation
Emphysema is a lung condition that is caused by damage to the alveoli, the tiny air sacs in the lungs where gas exchange occurs. When the alveoli are damaged, the body has difficulty exchanging oxygen and carbon dioxide. This can lead to shortness of breath and other respiratory problems. The other options are not directly related to the function of the alveoli or the effects of emphysema.
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Q #3: Use the table below to answer the question. Object Mass (g) Time of fall (sec) 1 5.0 2.0 2 5.0 1.0 3 30.0 0.5 4 35.0 1.5 Which of the following conclusions is supported by the data?
A. Objects A and B will fall at the same rate.
B. The greater the mass of an object, the faster it will fall.
C. The time of fall is independent of the mass of the object.
D. Air resistance could be greater for A than for B.
Answer Explanation
