Light is needed for photosynthesis, because it

The main function of photosynthesis is the O A. production of 02. B. conversion of light energy to chemical energy. O C. production of ATP. D. consumption of CO2. O E. production of starch.

What is the color of the visible light that is not utilized in photosynthesis?  Select one: a. orange b. green c. blue d. yellow e. red

Most of the energy produced in the Kreb Cycle is conserved in O A. GTP. O B. NADH and QH2. O C. ATP. O D. ADP.

The final electron acceptor in the electron transport chain is: a. NADH  b. FADH2 c. O2 d. ATP

Which molecule conveys protons from the chloroplast stroma into the thylakoid lumen? a. cytochrome b6-f b. plastocyanin c. phytochrome d. cytochrome c e. oxygen

Chemicals called uncouplers can make membranes permeable to small molecules and ions. What effect might uncouplers have on photosynthesis? O D. decreased NADPH production because the proton gradient would increase. O A decreased carbohydrate production because ATP would decrease. O C.increased ATP production because cyclic electron transport would increase. O B. decreased NADPH production because the proton gradient would decrease. O E. decreased ATP production because the proton gradient would increase

Which of the following would be a location where complexes of the electron transport chain could be found in plant cells? Select one: a. matrix of mitochondria b. thylakoid membranes of chloroplasts c. outer membrane of mitochondria d. cytoplasm e. stroma of chloroplasts

For each process labeled a-e below, clearly indicate: i. whether it occurs in a plant cell, animal cell or both ii. whether the process occurs in the cytoplasm, mitochondrial matrix, mitochondrial inner membrane, chloroplast stroma or thylakoids. a. Glycolysis b. Calvin cycle c. Light reaction d. Citric acid cycle e. Electron transport chain

27. The role of the antenna complex in a photosystem is to A. transfer excited electrons to the primary electron acceptor. B. generate glucose. C. generate NADPH. D. capture photons from sunlight. 28. The light-independent reactions of photosynthesis are those that A. convert glucose into energy. B. convert chlorophylls into light energy. C. convert CO, into reduced molecules (sugars). D. convert water into hydrogen and oxygen. 29. One cell sends second messengers to another cell through gap junctions. What type of signaling would this be considered? A. Paracrine B. Direct contact C. Endocrine D. Autocrine 30. What property defines most ligands for intracellular receptors? A. They are lipid-soluble B. They are hydrophilic C. They are molecules that can perform significant hydrogen bonding interactions with water D. They are large molecules 31. What type of receptor is not an enzyme, but is directly associated with an enzyme that can hydrolyze GTP? A. Channel-linked receptor B.…