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Photosynthesis utilizes _____. A. the entire electromagnetic spectrum B. only visible light C. radio and microwaves D. gamma rays . ___.

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slide1
Photosynthesis utilizes _____. A. the entire electromagnetic spectrum B. only visible light C. radio and microwaves D. gamma rays

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slide2

Which of the following is true? A. High energy photons like those in UV radiation are dangerous to cells. B. Short-wavelength radiation like that in gamma rays has photons of high energy content. C. Visible light photons promote electrons to higher electron shells without damaging cells. D. all of the above

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slide3

Which of the following is only minimally absorbed by chlorophylls a and b? A. violet light B. green light C. blue light D. red light

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slide4

Photosynthetic pigments capture _____ of the solar energy that reaches the earth. A. less than 2% B. 20% C. 50% D. 100%

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slide5

The importance of photosynthesis is that photosynthetic organisms produce ____ for the biosphere. A. CO2 B. H2O C. organic food D. all of the above

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slide7

The piece of equipment that measures how much light passes through a sample is called a _____. A. spirometer B. gas chromatograph C. spectrophotometer D. calorimeter

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the rate of photosynthesis can be measured by measuring the production of a co2 b h2o c o2
The rate of photosynthesis can be measured by measuring the production of _____. A. CO2 B. H2O C. O2

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slide9

The pigments which are primarily responsible for the metabolic activity associated with photosynthesis are the _____. A. chlorophylls B. carotenoids

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slide10

The reactants of photosynthesis include all of the following except _____. A. solar energy B. carbohydrates C. H2O D. CO2

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slide11

The oxygen given off by photosynthesis comes from ___________. A. CO2 B. CH2O C. H2O D. the atmosphere

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slide12

In a eukaryotic cell, photosynthesis occurs in the _____. A. chloroplast B. mitochondria C. nucleus D. golgi complex

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slide13

The photosynthetic pigments are found in the _____. A. stroma B. SER C. Golgi complex D. thylakoids

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co2 reduction occurs in the a thylakoids b stroma c nucleus d grana
CO2 reduction occurs in the _____. A. thylakoids B. stroma C. nucleus D. grana

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slide16

Chloroplasts will be found in _____. A. plant leaf cells B. photosynthetic bacteria C. animal cells D. all of the above

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slide17
The energy-capturing reactions take place during the _____ reactions. A. light-dependent B. light-independent

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when nadp accepts electrons it becomes a co2 b ch2o c nadph d h2o
When NADP+ accepts electrons it becomes _____. A. CO2 B. (CH2O) C. NADPH D. H2O

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slide19

The light-independent reactions take place in the ___________. A. thylakoids B. grana C. mitochondria D. stroma

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slide20

When the thylakoid pigments absorb solar energy, low energy electrons are removed from _____. A. (CH2O) B. H2O C. CO2 D. all of the above

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slide21

Light can be _____ by a pigment. A. absorbed by (taken up) B. reflected by (given off) C. transmitted (passed through) D. all of the above

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slide22

When electrons from chlorophyll a move down an electron transport system _____ is produced. A. NADP+ B. H2O C. ATP D. carbohydrate

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slide23

Which of the following is true of the cyclic electron pathway? A. ATP and NADPH are both produced. B. this pathway probably evolved after the non-cyclic electron pathway. C. the solar energy is absorbed by the PS I antenna complex. D. all of the above

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slide24

Which of the following is a product of the noncyclic electron pathway? A. ATP B. O2 C. NADPH D. all of the above

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slide25

During the noncyclic electron pathway, electrons move from water through PS II to PS I and then to _____. A. ADP B. CO2 C. NADP+ D. glucose

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slide26

Which of the following is NOT a product of the light-dependent reactions? A. ATP B. O2 C. glucose D. NADPH

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slide27

When H+ flow down their electrochemical gradient through _____ ATP production occurs. A. PS I B. PS II C. ATP synthase D. the stroma

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slide28

The light-dependent reactions take place in the _____. A. stroma B. thylakoids C. cytosol D. cristae

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slide30

The antennae complex is composed of _____. A. chlorophyll a B. chlorophyll b C. carotenoid pigments D. all of the above

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slide31

Which product of the light-dependent reactions is used in the light-independent reactions? A. O2 B. NADPH C. ATP D. both B and C

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slide32

The energy and electrons needed for the reduction synthesis are supplied by _____. A. NADPH B. ATP C. CO2 D. both A and B

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a plant can use pgal to make a sucrose b oils c cellulose d all of the above
A plant can use PGAL to make _____. A. sucrose B. oils C. cellulose D. all of the above

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slide34

The first step of the Calvin cycle is A. CO2 fixation B. PGAL reduction C. RuBP regeneration D. ATP synthesis

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slide35

CO2 fixation occurs when CO2 combines with _____. A. ribulose bisphosphate B. gylceraldehyde -3-phosphate C. NADP D. glucose

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slide36

About 20-50% of the protein content in chloroplasts is _____ which speeds up CO2 fixation. A. glyceraldehyde-3-phosphate B. NADPH C. ATP D. RuBP carboxylase

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slide37

Which correctly describes the light independent reactions? A. ATP is produced B. CO2 is reduced C. sunlight is required D. O2 is produced

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slide38

Five molecules of PGAL are used to produce _____ so that the Calvin cycle can continue. A. NADPH B. RuBP C. glucose D. oxaloacetate

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slide39

The six-carbon molecule resulting from carbon-dioxide fixation immediately breaks down to form __________. A. 2, three-carbon PGA molecules B. 3, two-carbon PGA molecules C. glucose D. RuBP

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in a c4 plant the cells contain chloroplasts a bundle sheath b mesophyll c both a and b
In a C4 plant, the __________ cells contain chloroplasts. A. bundle sheath B. mesophyll C. both A and B

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slide42

The stomates of the leaves _____. A. close when the weather is hot and dry B. take up CO2 C. allow H2O to leave the leaf D. all of the above

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slide43

A solution to global warming is _____. A. plant more shrubs and trees B. use fewer fossil fuels C. protect the rainforests D. all of the above

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during photorespiration combines with rubp carboxylase a o2 b co2 c pga d glucose
During photorespiration, _____ combines with RuBP carboxylase. A. O2 B. CO2 C. PGA D. glucose

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