Question 1

Which of thfollowing is most descriptivof an electron transport chain?

Accepted Answer

A) It generates energy from nothing. 
B) It is a mechanism used by cells to dispose of unused electrons. 
C) It transfers electron energy, stepwise, from one compound to another. 
D) It transfers energy, stepwise, from one compound to another. 
E) It requires activation by sunlight. 
A) It generates energy from nothing. 
B) It is a mechanism used by cells to dispose of unused electrons. 
C) It transfers electron energy, stepwise, from one compound to another. 
D) It transfers energy, stepwise, from one compound to another. 
E) It requires activation by sunlight.

Question 2

Which of thfollowing parts of thplants arlikely to havphotosynthetic cells?

Accepted Answer

A) roots 
B) old branches 
C) leaves 
D) trunk 
E) stem 
A) roots 
B) old branches 
C) leaves 
D) trunk 
E) stem

Question 3

Thprocess by which a small amount of thenergy in a glucosmoleculis releaseas it is converteinto two small organic acimolecules is called

Accepted Answer

A) photolysis. 
B) glycolysis. 
C) oxidative phosphorylation. 
D) substrate-level phosphorylation. 
E) the Krebs cycle. 
A) photolysis. 
B) glycolysis. 
C) oxidative phosphorylation. 
D) substrate-level phosphorylation. 
E) the Krebs cycle.

Question 4

Which of thfollowing generates thmost energy in thforof ATP?

Accepted Answer

A) aerobic respiration 
B) anaerobic respiration 
C) alcoholic fermentation 
D) lactate fermentation 
E) all generate the same amount, but through different means 
A) aerobic respiration 
B) anaerobic respiration 
C) alcoholic fermentation 
D) lactate fermentation 
E) all generate the same amount, but through different means

Question 5

Today, what is thmain reason that explains thlack of success of biofuels?

Accepted Answer

A) The resources are extremely limited. 
B) The cost of production is way too high. 
C) Potential impacts on the environment are not known yet. 
D) Most nations are not ready to use such resources. 
E) The landscape is extremely affected. 
A) The resources are extremely limited. 
B) The cost of production is way too high. 
C) Potential impacts on the environment are not known yet. 
D) Most nations are not ready to use such resources. 
E) The landscape is extremely affected.

Question 6

Four of thfivplants listebelow arC4 plants.Select thEXCEPTION.

Accepted Answer

A) sugar cane 
B) crabgrass 
C) pine 
D) corn 
E) bamboo 
A) sugar cane 
B) crabgrass 
C) pine 
D) corn 
E) bamboo

Question 7

Light travels frospacto earth

Accepted Answer

A) in circle lines. 
B) in straight lines. 
C) in waves. 
D) in circle and straight lines. 
E) in circle lines and in waves. 
A) in circle lines. 
B) in straight lines. 
C) in waves. 
D) in circle and straight lines. 
E) in circle lines and in waves.

Question 8

Four of thfivanswers listebelow arcompounds associatewith anaerobic respiration.Select thEXCEPTION.

Accepted Answer

A) pyruvate 
B) lactate 
C) ethanol 
D) oxaloacetate 
E) acetaldehyde 
A) pyruvate 
B) lactate 
C) ethanol 
D) oxaloacetate 
E) acetaldehyde

Question 9

Which of thfollowing statements is INCORRECT about C3 plants?

Accepted Answer

A) C3 plants conserve water on dry and hot days by closing their stomata. 
B) C3 plants are so called because a 3-carbon PGA is the first stable intermediate that forms in the light-independent reactions. 
C) In C3 plants, a carbon dioxide molecule that is taken from the atmosphere is readily accepted by a RuBP molecule. 
D) Because photorespiration counteracts photosynthesis, C3 plants have developed a way to shut down that process (photorespiration). 
E) None of these are incorrect. 
A) C3 plants conserve water on dry and hot days by closing their stomata. 
B) C3 plants are so called because a 3-carbon PGA is the first stable intermediate that forms in the light-independent reactions. 
C) In C3 plants, a carbon dioxide molecule that is taken from the atmosphere is readily accepted by a RuBP molecule. 
D) Because photorespiration counteracts photosynthesis, C3 plants have developed a way to shut down that process (photorespiration). 
E) None of these are incorrect.

Question 10

At thenof thelectron transfer chain, thfinal electron acceptor is

Accepted Answer

A) FAD. 
B) PGA. 
C) NADP+. 
D) FMN. 
E) PEP. 
A) FAD. 
B) PGA. 
C) NADP+. 
D) FMN. 
E) PEP.

Question 11

Plant cells arcapablof

Accepted Answer

A) photosynthesis. 
B) ATP production. 
C) glucose breakdown. 
D) aerobic respiration. 
E) all of these. 
A) photosynthesis. 
B) ATP production. 
C) glucose breakdown. 
D) aerobic respiration. 
E) all of these.

Question 12

Thcarbon sourcfor organisms that derivtheir energy frophotosynthesis is

Accepted Answer

A) carbon monoxide. 
B) carbon dioxide. 
C) hydrocarbons. 
D) methane. 
E) glucose. 
A) carbon monoxide. 
B) carbon dioxide. 
C) hydrocarbons. 
D) methane. 
E) glucose.

Question 13

Which of thfollowing woulNOT btruof CAplants?

Accepted Answer

A) fix carbon only once 
B) live in a desert environment 
C) fix carbon mostly during the day 
D) open stomata only at night 
E) grow slowly 
A) fix carbon only once 
B) live in a desert environment 
C) fix carbon mostly during the day 
D) open stomata only at night 
E) grow slowly

Question 14

Thsplitting of water in photosynthesis

Accepted Answer

A) releases oxygen. 
B) results in accumulation of H+ inside the thylakoid. 
C) releases electrons. 
D) helps to fill an electron hole in the second photosystem. 
E) does all of these. 
A) releases oxygen. 
B) results in accumulation of H+ inside the thylakoid. 
C) releases electrons. 
D) helps to fill an electron hole in the second photosystem. 
E) does all of these.

Question 15

ALL EXCEPT which condition must bpresent for light-independent reactions to occur?

Accepted Answer

A) presence of carbon dioxide 
B) exposure of plant to light 
C) presence of ribulose bisphosphate 
D) presence of ATP and NADPH 
E) presence of required enzyme 
A) presence of carbon dioxide 
B) exposure of plant to light 
C) presence of ribulose bisphosphate 
D) presence of ATP and NADPH 
E) presence of required enzyme

Question 16

Which of thfollowing compounds produces carbon dioxidduring thbreakdown of glucosin aerobic respiration?

Accepted Answer

A) phosphoglycerate 
B) pyruvate 
C) ATP 
D) NADH 
E) fructose bisphosphate 
A) phosphoglycerate 
B) pyruvate 
C) ATP 
D) NADH 
E) fructose bisphosphate

Question 17

Four of thfivanswers listebelow arheterotrophs.Select thEXCEPTION.

Accepted Answer

A) fungus 
B) carrot 
C) earthworm 
D) lobster 
E) parasite 
A) fungus 
B) carrot 
C) earthworm 
D) lobster 
E) parasite

Question 18

In a plant, which of thfollowing items arorganic molecules that can absorb light of certain wavelength?

Accepted Answer

A) photons 
B) leaves 
C) chloroplasts 
D) pigments 
E) protons 
A) photons 
B) leaves 
C) chloroplasts 
D) pigments 
E) protons

Question 19

During electron transport phosphorylation, which ions accumulatin thouter compartment of thmitochondria?

Accepted Answer

A) calcium 
B) hydrogen 
C) oxygen 
D) phosphorus 
E) sodium 
A) calcium 
B) hydrogen 
C) oxygen 
D) phosphorus 
E) sodium

Question 20

Thproducts of light-dependent reactions of photosynthesis

Accepted Answer

A) are used in light-independent reactions. 
B) are complex carbohydrates and proteins. 
C) are stored in the vacuoles of the cell. 
D) are oxygen and glucose. 
E) are used in the light-independent reactions and are stored in the vacuoles of the cell. 
A) are used in light-independent reactions. 
B) are complex carbohydrates and proteins. 
C) are stored in the vacuoles of the cell. 
D) are oxygen and glucose. 
E) are used in the light-independent reactions and are stored in the vacuoles of the cell.

Exam 5: Capturing and Releasing Energy

Which of thfollowing is most descriptivof an electron transport chain?

Which of thfollowing parts of thplants arlikely to havphotosynthetic cells?

Thprocess by which a small amount of thenergy in a glucosmoleculis releaseas it is converteinto two small organic acimolecules is called

Which of thfollowing generates thmost energy in thforof ATP?

Today, what is thmain reason that explains thlack of success of biofuels?

Four of thfivplants listebelow arC4 plants.Select thEXCEPTION.

Light travels frospacto earth

Four of thfivanswers listebelow arcompounds associatewith anaerobic respiration.Select thEXCEPTION.

Which of thfollowing statements is INCORRECT about C3 plants?

At thenof thelectron transfer chain, thfinal electron acceptor is

Plant cells arcapablof

Thcarbon sourcfor organisms that derivtheir energy frophotosynthesis is

Which of thfollowing woulNOT btruof CAplants?

Thsplitting of water in photosynthesis

ALL EXCEPT which condition must bpresent for light-independent reactions to occur?

Which of thfollowing compounds produces carbon dioxidduring thbreakdown of glucosin aerobic respiration?

Four of thfivanswers listebelow arheterotrophs.Select thEXCEPTION.

In a plant, which of thfollowing items arorganic molecules that can absorb light of certain wavelength?

During electron transport phosphorylation, which ions accumulatin thouter compartment of thmitochondria?

Thproducts of light-dependent reactions of photosynthesis

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolutionunit

Population Ecology

Communities and Ecosystems

The Biosphere and Human Eff Ects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

Four of thfivplants listebelow arC₄ plants.Select thEXCEPTION.

Which of thfollowing statements is INCORRECT about C₃ plants?