Helix-turn-helix and zinc fingers are secondary structural motifs in DNA and RNA, respectively.
Answer the following statement true (T) or false (F)
False
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The accumulation of amino acids and sugars in animal cells can occur through
A. ATP pumps. B. sodium-potassium pumps. C. glucose pumps. D. coupled transport. E. proton pumps.
Answer the following statements true (T) or false (F)
1. When a molecule of NAD+ gains a hydrogen atom, the molecule becomes reduced. 2. Proteins and fats may be used as energy sources to drive aerobic respiration. 3. During the energy investment phase of glycolysis, glucose has a decrease in free energy. 4. The rate of photosynthesis is much greater in green light than red light.
A(n) _____disease is an infectious disease that does not arise from host to host transmission
Fill in the blank(s) with the appropriate word(s).
The first animals to show cephalization have several characteristics. Which of the following is NOT one of them?
a. These animals were triploblastic. b. These animals had a proboscis. c. These animals were in phylum Platyhelminthes. d. These animals are placed in the group Lophotrochozoa. e. These animals followed the protostome pattern of embryonic development