Primary growth (lengthening) arises from
__________. Fill in the blank(s) with the appropriate word(s).
Answer: apical meristems
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Which of the following is the most precise description of the role of enzymes in catalyzing biochemical reactions?
A. Enzymes provide the necessary activation energy to overcome the transition state. B. Enzymes stabilize the transition state and decrease its free energy. C. Enzymes cut hard to break bonds allowing the reaction to proceed. D. Enzymes increase the G of the reactions making them proceed rapidly. E. Enzymes decrease the G of the reactions making them proceed rapidly.
Which of the following statements is NOT true about sister chromatids?
A. They are identical DNA sequences. B. They are attached to each other at a region of their DNA sequence called the centromere. C. They are formed in the S phase of the cell cycle when the chromosome undergoes replication. D. They are formed when the prokaryotic circular chromosome attaches at the plasma membrane. E. All of these statements about sister chromatids are false.
The collagen fibers in bone are secreted by osteoblasts
____________________ Indicate whether the statement is true or false.
The replisome has two main subcomponents. They are
A. the replication folk and the DNA pol III enzymes. B. the primosome and the DNA pol III enzymes. C. the DNA pol III enzymes and the sliding clamp subunits. D. the primosome and the sliding clamp subunit. E. the replication folk and the sliding clamp subunit.