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: Which of the following parts of the eukaryotic cell is responsible for making ATP?

A. Lysosome

B. Nucleus

C. Centrioles

D. Mitochondria

Answer Explanation

ATP is produced by a series of reactions that occur in the mitochondria. The mitochondria have a double membrane structure, with an inner membrane that is folded into cristae. These cristae contain the enzymes and proteins that are involved in the process of cellular respiration, which converts glucose and oxygen into ATP and carbon dioxide.
Q #2: Which of the following cells transfers pigment granules to adjacent epidermal cells?

A. Melanocytes

B. Merkel cells

C. Langerhans cells

D. Keratinocytes

Answer Explanation

Melanocytes are specialized skin cells that produce melanin, which is the protective skin-darkening pigment. They are found mainly in the epidermis, though they occur elsewhere, such as in the hair.
Q #3: Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders, in which of the following ways should the hypothesis be modified, given the new findings?

A. Lack of worm infestations is the cause of some autoimmune disorders.

B. Worm infestation reduces the severity of certain autoimmune disorders

C. Worm infestation prevents the body from immune malfunction

D. Worm infestations exacerbate the body's immune reactions

Answer Explanation

The new findings can be used to generate a hypothesis to reflect the beneficial aspect of worm infestations in certain autoimmune disorders, indicating that they can help reduce the severity of the condition.

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

More Questions on TEAS 7 Science

Q #1: Which of the following parts of the eukaryotic cell is responsible for making ATP?

Answer Explanation

Q #2: Which of the following cells transfers pigment granules to adjacent epidermal cells?

Answer Explanation

Q #3: Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders, in which of the following ways should the hypothesis be modified, given the new findings?

Answer Explanation

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