Question

(01.02 lc)
fats and steroids are examples of which macromolecule?
o a carbohydrates
b lipids
o c proteins
d nucleic acids
question 20 (4 points)
(01.02 mc)
which of the following offers the most complete list of how proteins function in the body?
o a brain health and development, speeding up reactions, preventing blood clots
b energy production, enzyme development, increased reaction speed
o c regulation of metabolism, cholesterol conversion, controlling inflammation
d structural support, communication within the body, defense against foreign invaders

Explanation:

• Fats and steroids are lipids. Lipids are a diverse group of macromolecules that include fats (triglycerides), steroids (like cholesterol and hormones), phospholipids (in cell membranes), and waxes. They are non - polar (hydrophobic) and have various functions such as energy storage (fats), acting as hormones (steroids), and being part of cell membranes (phospholipids).
• Proteins have multiple functions. They provide structural support (e.g., collagen in connective tissues). They act as signaling molecules (e.g., hormones like insulin for communication within the body). Antibodies (a type of protein) are involved in the defense against foreign invaders (pathogens).

Answer:

For the first question: B. Lipids
For the second question: D. Structural support, communication within the body, defense against foreign invaders