choose letter pls 1. why is cyclic electron flow important in photosynthesis?  a. generates greater amount of energy in simple but efficient pathway. b. allows the plants to conserve energy produced during photosynthesis. c. converts chemical energy from inorganic moleccules with less input of atp. d. allows the plants sensitive to light and living in low light environment to produce atp   2. which of the following does not occur during the light dependent reaction? a. photolysis of h2o b. realease of oxygen c. regeneration of co2 acceptor d. phosphorylation of adp forming atp

Part A - Multiple Choice /15) 1. How does Chlorophyll obtain its energy? a. from CO2 and water? 6 absorbed from solar energy # 3 c. converted from chemical energy into ATP d. glucose broken down through a series of reactions 2. What process occurs during the light-independent reactions of photosynthesis? a. Oxygen is released into the atmosphere b. Protons are pumped from the thylakoid space into the stroma c. RuBP is carboxylated then regenerated in the Calvin cycle d. Triose phosphate is converted into G3P 3. Which statement is true about energy? E a. energy can only be obtained from solar sources b. energy can be obtained from chemical sources c. energy can be created from anything (d) energy can be converted from solar and chemical sources 4. Under which condition is anaerobic respiration most likely to occur? a bacteria in soil helping to compost b. yeast causing bread dough to rise c. bacteria present on a rusty nail d. all the above 5. What is true of chemosynthesis? a. It is…

How does light color affect the rate of photosynthesis?  Why does the color of light matter?      Clear Red Green Blue Number of Bubbles  (1 Min) 6 12 6 15

Light Leaf B Leaf A Black cloth КОН Water solution Take a close look at the apparatus, it is set up to investigate factors that affect the rate of photosynthesis. KOH solution is similar to sodium hydroxide. The plant was placed in the light for 24hrs in the state that is seen. Following 24 hours leaf A and B were tested for starch. Explain what results we would expect to see and why?

A. Highlight all the organisms that CAN do photosynthesis  (you might need to google search what these are)  Venus fly trap Mycorrhizal fungus Cyanobacteria     Red algae    Sponges    Corn (Zea mays) B. Summarize the purpose of photosynthesis______ C. How could you tell or measure the rate of photosynthesis? ____ D.  What is a redox reaction? ___   E. When the water molecule donates its electron to the chlorophyll molecule the water molecule was ______ while the chlorophyll was ______.  F. When the carbon chain gains electrons from NADPH the carbon chain has been _____. G. Discuss how the chloroplast structure is arranged using the following terms (include picture too) chloroplast,  thylakoid,  stroma,  chlorophyll,  H. Light reaction and Calvin cycle:  what is the overall purpose of each one?

Directions: Arrange in sequence the process of electron flow in Photosystem I from first to last by writing 1-4 on the blank provided before each number.

44. What does light do when it strikes the chlorophyll molecules of Photosystems I and II? Group of answer choices a. Light causes glucose to be synthesized directly inside the chlorophyll molecules of photosynthesis. b. Light causes the conversion of water into carbon dioxide, oxygen and electrons. c. Light directly causes the carbon dioxide to attach to RuBP during the carbon fixation stage of the Calvin Cycle. d. Light causes electrons to get excited and travel down an electron transport chain embedded in the thylakoid membrane.

Every kid from Grade 4 onwards knows that photosynthesis involves light.    Remind me, what do photons of light specifically do in photosynthesis?        A.  They remove electrons from H2O, releasing oxygen into the atmosphere.  B.  They reduce P680+ to P680.  C.  They convert carbon dioxide into a carbohydrate (glucose)   D.  They make chlorophyll easier to oxidize.

Are you hungry? could use a light snack. 86. The main pigment of photosynthesis is: a. chlorophyll a b. chlorophyll b c. carotenoids d. All of the above are correct. 87. What is not part of a photosystem: a. antenna complex b. reaction center c. chlorophyll d. ATP synthase pump 88. The light-dependent reactions take place in the: 4+ a. stroma b. cytoplasm c. thylakoid membranes d. matrix 89. In the light-dependent reactions, ATP is produced via: 90. What is the first step in the light dependent reactions? a. Light hits photosystem I. b. Electrons are transferred to b6-f complex. c. Light hits photosystem II. d. Protons are pumped across the membrane. 91. Where do the electrons and protons used in the light-dependent reactions come from: a. H₂O b. CO₂ c. RuBP d. PGAL a. oxidative phosphorylation (electron transport system). b. substrate-level phosphorylation.

Choose the one answer that fits best. Which of the following statements about photosynthesis is NOT correct? a. it produces sugars O b. it releases oxygen O c. only plants are capable of photosynthesis O d. it consists of a light reaction and a dark reaction e. it takes place mostly in chloroplasts