Most bivalves are:
a. predators.
b. parasites.
c. filter feeders.
d. grazers.
e. detritivores.
C
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Answer the following statements true (T) or false (F)
1. In cellular respiration, the energy found in the covalent bonds in glucose is used to form ATP. 2. Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids. The digestion described is an example of cellular respiration. 3. People beginning cardiopulmonary resuscitation (CPR) training are often surprised that they can breathe enough oxygen into a victim with the air from their lungs. The fact that you still have sufficient oxygen to benefit another person in emergencies indicates that our bodies do not use all of the oxygen molecules we breathe in. 4. Cellular aerobic respiration includes glycolysis, the Krebs cycle, and electron transport. 5. Proteins in your diet can be used as a reactant in cellular respiration pathways.
According to the pressure-flow hypothesis, which of the following statements is NOT true?
a) Water moves from the xylem to the phloem of a plant. b) Water is necessary for sugars to move through phloem. c) Phloem is able to move sugars in either direction to meet the nutritional needs of the plant. d) The movement of water into a nutrient-rich region of the phloem decreases the pressure in that region.
RNA molecules that function as enzymes
A) form primitive cells. B) are called ribozymes. C) developed from protein-based enzymes. D) degrade proteins. E) duplicate lipid molecules.
Plant cells are often green but animal cells are not usually green. Which structure in plant cells makes them green?
a) cell wall b) chloroplast c) cytoplasm d) vacuole