List the four major types of macromolecules, their subunits (building blocks), and their functions.

What will be an ideal response?


(1) Proteins. The subunits are amino acids. Their functions include catalyzing chemical reactions, structural roles, acting as chemical messengers, transport of substances, and muscle contraction.
(2) Nucleic Acids. Their subunits are nucleotides. Their function is the storage of information for cells.
(3) Carbohydrates. Their subunits are monosaccharides. Their functions include energy storage and structural support.
(4) Lipids. Lipids that are fats are made of fatty acid and glycerol subunits. Steroids, such as cholesterol, are made of ring structures. Lipids are used for energy storage and make up cellular membranes.

Biology & Microbiology

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Which of the following statements regarding meiosis is most accurate?

A. Crossing over occurs during metaphase I. B. A diploid cell produces haploid daughter cells. C. Haploid cells produce diploid cells. D. Homologous (non-sister) chromatids separate during anaphase II. E. Meiosis has the same number of stages as mitosis.

Biology & Microbiology

Charles Darwin

a. studied to be a physician. b. studied to become a clergyman. c. pursued his interests in natural history. d. did all of these. e. did none of these.

Biology & Microbiology

How were the sequences that compose the replication origins in yeast discovered?

What will be an ideal response?

Biology & Microbiology

When the noncompetitive inhibitor is bonded to the enzyme, the shape of the ____ is distorted.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology