Question

name
macromolecules 1

1. which biomolecule is a main source of quick energy?

a. nucleic acid
b. protein
c. lipid
d. carbohydrates

1. which biomolecules are found in fats, oils, and waxes and are a source of long - term

energy?
a. proteins
b. nucleic acid
c. lipids
d. carbohydrates

1. what is the function of carbohydrates?

a. short term energy
b. long term energy
c. speeding up chemical reactions
d. storing genetic information

1. what is one of the functions of lipids?

a. storing genetic information
b. short term energy
c. long term energy
d. acting as chemical signals

1. what macromolecule is shown in this picture?

a. proteins
b. lipids
c. carbohydrates
d. nucleic acids

Explanation:

1. Carbohydrates are broken down quickly during metabolism to release energy. Nucleic acids store genetic information. Proteins have functions like building tissues and enzymes. Lipids are for long - term energy.
2. Lipids (fats, oils, waxes) are stored in the body and provide long - term energy. Proteins are structural and functional (e.g., enzymes). Nucleic acids store genetic info. Carbohydrates are for short - term energy.
3. Carbohydrates are mainly for short - term energy. Lipids for long - term. Enzymes (proteins) speed up reactions. Nucleic acids store genetic info.
4. Lipids can act as chemical signals (e.g., steroid hormones). Nucleic acids store genetic info. Carbohydrates for short - term energy. Proteins have various functions but not the main long - term energy (lipids are).
5. The structure shown (with phosphate, ribose, and a nitrogenous base) is a nucleotide, which is the building block of nucleic acids. Proteins are made of amino acids. Lipids have fatty acid and glycerol components. Carbohydrates have monosaccharide units.

Answer:

1. D. Carbohydrates
2. C. Lipids
3. A. Short term energy
4. D. Acting as chemical signals
5. D. Nucleic Acids