When a muscle cell demands energy to contract, what happens to atp?
a) atp makes more atp
b) atp is hydrolyzed and turned into adp
c) atp is phosphorylated
d) atp is shuttled to the mitochondri

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the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set