Answer the following question given this paragraph: Hair and nails are made of keratin, a tough protein. Q: Hair and nails are made of what? Choices: - chromatin - proteins - cellulose - keratin A:
keratin
(Question)
Answer the following question given this paragraph: Dietary proteins are broken down during digestion to provide the amino acids needed for protein synthesis. Any extra proteins in the diet not needed for this purpose are used for energy or stored as fat. One gram of proteins provides 4 Calories of energy. Eating protein provides the amino acids for your cells to produce your own antibodies, muscle fibers and enzymes (as well as many other types of proteins). Q: What are broken down during digestion to provide the amino acids needed for protein synthesis? Choices: - sugars - carbohydrates - metabolytes - dietary proteins A:
(Answer)
dietary proteins
Ques: Answer the following question given this paragraph: After the blood in the pulmonary capillaries becomes saturated with oxygen, it leaves the lungs and travels to the heart. The heart pumps the oxygen-rich blood into arteries, which carry it throughout the body. Eventually, the blood travels into capillaries that supply body tissues. These capillaries are called peripheral capillaries . Q: After the blood in the pulmonary capillaries becomes saturated with oxygen, it leaves the lungs and travels where? Choices: - to the lungs - to the kidneys - to the brain - to the heart A:
Ans: to the heart
(Q).
Answer the following question given this paragraph: An amide bond joining two amino acid units is called a peptide bond. Note that the product molecule still has a reactive amino group on the left and a reactive carboxyl. Q: An amide bond joining two amino acid units is called a what? Choices: - carboxyl bond - ammonia bond - precipitate bond - peptide bond A:
(A).
peptide bond
Ques:Answer the following question given this paragraph: 4. Electromagnetic energy is energy that travels through space as electrical and magnetic waves. The light flooding the stage in the Figure above is one type of electromagnetic energy. Other types include radio waves, microwaves, X rays, and gamma rays. Q: What type of energy travels through space as electrical and magnetic waves? Choices: - sound energy - mechanical energy - solar energy - electromagnetic energy A:

Ans:electromagnetic energy
Question: Answer the following question given this paragraph: All elements have an oxidation number of zero in their pure form. Q: In their pure form, all elements have an oxidation number of what? Choices: - 3 - 2 - 7 - zero A:
Answer:
zero