Which of the following body systems breaks down proteins into amino acids?

A. Digestive

B. Excretory

C. Circulatory

D. Endocrine

Answer Explanation:

The digestive system breaks down complex food substances into small and less complex absorbable compounds. Proteins, for instance, are broken down to constituent amino acids through a digestion process that combines mastication and enzymatic breakdown.

Therefore, the Correct Answer is A.

Q #1: in which of the following locations does fertilization of an egg cell typically occur?

A. Fallopian Tube

B. Ovary

C. Uterus

D. Cervical canal

Answer Explanation

Fertilization occurs in the fallopian tube and not in the ovary, uterus, or cervical canal.
Q #2: Which of the following pathways best represents the expected flow of blood from the human heart to an organ?

A. Blood pumped from the heart first enters arterioles that then merge to form arteries that deliver blood to the organ

B. Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries of the organ

C. Blood pumped from the heart first enters versus that then narrow to form venules that deliver blood to arteries to the organ

D. Blood pumped from the heart first enters arteries that then narrow to form arterioles that deliver blood to capillaries

Answer Explanation

From the heart, blood flows through major arteries, which then branch to give rise to arterioles, which then divide into capillaries that deliver blood to the target organ.
Q #3: Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

A. Sebum

B. Water

C. Lysozymes

D. Urea

Answer Explanation

Urea is a nitrogenous waste product that is produced when the liver breaks down proteins and amino acids. It is then excreted from the body via sweat.

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Which of the following body systems breaks down proteins into amino acids?

More Questions on TEAS 7 Science

Q #1: in which of the following locations does fertilization of an egg cell typically occur?

Answer Explanation

Q #2: Which of the following pathways best represents the expected flow of blood from the human heart to an organ?

Answer Explanation

Q #3: Which of the following substances is excreted by sweat glands in response to the breakdown of proteins and the formation of ammonia?

Answer Explanation

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