During this stage of mitosis, the chromosomes become attached to the spindle at their kinetochores.
A. anaphase
B. metaphase
C. telophase
D. prophase
E. prometaphase
Answer: E
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The origin of a skeletal muscle is
(a) attached to the less mobile portion of the skeleton. (b) attached to the portion of the skeleton that moves when the muscle contracts. (c) never attached to the skeleton. (d) its belly.
In the breakdown of a molecule of glucose in the cytoplasm, ________ molecules of ATP are produced.
Fill in the blank(s) with the appropriate word(s).
Which statement about euglenoids is FALSE?
a. They have a pellicle. b. They are unicellular. c. They are all photosynthetic. d. Their cells contain mitochondria. e. They have 9 + 2 arrangement of microtubules in their flagella.
If photosynthesis produces cellular energy (ATP) from sunlight, why do plant cells also need to perform cellular respiration, a process that produces ATP from sugar?
a. Plant cells cannot make cellular energy at night; therefore, photosynthesis actually stores ATP energy as sugar, which can be then converted back to ATP at night by cellular respiration. b. Plant cells cannot make enough ATP from sunlight in photosynthesis; they need to perform cellular respiration too in order to make up the difference. c. Plant cells need cellular respiration to convert the sugars they absorb through their roots into ATP. d. Plant cells can't produce enough sugar from photosynthesis; cellular respiration is needed to produce the remaining sugar. e. Plant cells need cellular respiration to degrade the toxic products made in photosynthesis