Single-celled organisms have a limited number of biomolecular machines within them.

a. true
b. false


Answer: a. true

Biology & Microbiology

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Which of the following is NOT synthesized from a DNA template?

A) messenger RNA B) amino acids C) tRNA D) ribosomal RNA

Biology & Microbiology

The universal source of energy for cells is glycogen because energy is released by a single chemical reaction.

a. true b. false

Biology & Microbiology

Which of the following statements concerning ATP is FALSE?

a. It is a nucleotide.

b. It stores energy for long periods. c. It is called the energy currency of the cell. d. It contains phosphate groups joined in a series. e. It contains phosphate groups joined by unstable bonds.

Biology & Microbiology

In what way are cilia and flagella similar?

a. They both propel a cell in the same way. b. They both occur in great numbers. c. They are identical in structure. d. They are both of the same length.

Biology & Microbiology