Download 43) What are the membrane structures that function in active

43) What are the membrane structures that function in active transPort?
A) peripheral Proteins
B) carbohydrates
C) cholesterol
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D) cytoskeleton filaments
E) integral Proteins
44) All of the following are functions of membrane proteins except
A) cell-cell recognition.
B) proiein synthesis.
C) signal trarsduction.
D) intercellular joining.
E) transport.
45) Which oI the following statements is correcfabout diJfusion?
A) It is very rapid over long distances.
B) It requires an exPenditure of energy by the cell.
of lower
C) It is a passive processin which molecules move from a region of higher concentration to a region
concentration.
D) It is an active processin which molecules move from a region of lower concentration to one of higher
concentration.
E) It requires integral Proteins in the cell membrane.
46) Which of the following statements besfdescribesthe relationship between photosynihesis and respiration?
A) Respiration is the exact reversal of the biochemical pathways of photos;mthesis'
B) Photosynthesis stores energy in complex organic molecules, while respijation releasesit.
C) Photoslmthesis occurs only in plants and respiration occurs orrly in animals'
p) ATP moleculesare produced in photosynthesisand used uP in resPiration'
@ Respiration is anabolic and photorymthesis is catabolic
47) In an experiment studying photos]'rrthesis performed during the day, you Plovide a Plant with radioactive
carbon (14C) diodde as a metabolic tracer. The 14C is incolporated first into oxaloacetic acid. The plant is best
characterizedas a
A) C4 plant.
B)'C3plant.
C) CAIr4 plant.
D) heterotroph.
E) chemoauiotroph.
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