Question 1

The energy "currency" of the cell is

Accepted Answer

A)  NAD+. 
B)  water. 
C)  FADH2. 
D)  ATP. 
E)  glucose. 
A)  NAD+. 
B)  water. 
C)  FADH2. 
D)  ATP. 
E)  glucose.

Question 2

Photosynthesis is an example of a/an _____________ set of chemical reactions in plants.

Accepted Answer

A)  catabolic 
B)  energy releasing reactions in plant cells 
C)  anabolic 
D)  light-releasing 
E)  mitochondrial-based 
A)  catabolic 
B)  energy releasing reactions in plant cells 
C)  anabolic 
D)  light-releasing 
E)  mitochondrial-based

Question 3

In aerobic respiration, how many ATPs are produced from complete respiration of one molecule of glucose?

Accepted Answer

A)  46 
B)  36 
C)  26 
D)  16 
E)  6 
A)  46 
B)  36 
C)  26 
D)  16 
E)  6

Question 4

Which of the following are contained in each photosynthetic unit of photosystem I?

Accepted Answer

A)  One P700 molecule. 
B)  Small amounts of chlorophyll b. 
C)  Carotenoid pigment. 
D)  200 or more molecules of chlorophyll a. 
E)  All of these answers are correct. 
A)  One P700 molecule. 
B)  Small amounts of chlorophyll b. 
C)  Carotenoid pigment. 
D)  200 or more molecules of chlorophyll a. 
E)  All of these answers are correct.

Question 5

Which list gives the products of the light reactions of photosynthesis?

Accepted Answer

A)  Glucose and oxygen. 
B)  Carbon dioxide and water. 
C)  NADPH, ATP, and oxygen molecule. 
D)  Ethanol and carbon dioxide. 
E)  Glucose only. 
A)  Glucose and oxygen. 
B)  Carbon dioxide and water. 
C)  NADPH, ATP, and oxygen molecule. 
D)  Ethanol and carbon dioxide. 
E)  Glucose only.

Question 6

Most energy transfers in cells involve a linked set of oxidation and reduction reactions.This means that ______________.

Accepted Answer

A)  one molecule gains an electron while retaining its original set of electrons 
B)  one of the reacting molecule loses an electron while the second molecule picks it up and passes it to a third molecule 
C)  one molecule is oxidized and one is reduced in a set of coupled reactions 
D)  the reduced molecule loses an electron and becomes smaller 
E)  all of these are correct 
A)  one molecule gains an electron while retaining its original set of electrons 
B)  one of the reacting molecule loses an electron while the second molecule picks it up and passes it to a third molecule 
C)  one molecule is oxidized and one is reduced in a set of coupled reactions 
D)  the reduced molecule loses an electron and becomes smaller 
E)  all of these are correct

Question 7

Photorespiration decreases the efficiency of the light independent reactions in C3 plants under hot, dry conditions.

Accepted Answer

A) True 
 B)False

Question 8

A temperature rise of 10$\circ$C between 20$\circ$ and 30$\circ$C can double or even triple respiration rates.

Accepted Answer

A) True 
 B)False

Question 9

The light most extensively used in photosynthesis consists of wavelengths in the green range.

Accepted Answer

A) True 
 B)False

Question 10

The splitting of water molecules on the inside of thylakoid membranes during photosynthesis is called

Accepted Answer

A)  photophosphorylation. 
B)  photolysis. 
C)  chemiosmosis. 
D)  uncoupling. 
E)  plastocyanization. 
A)  photophosphorylation. 
B)  photolysis. 
C)  chemiosmosis. 
D)  uncoupling. 
E)  plastocyanization.

Question 11

Which of the following is an INCORRECT statement concerning the Calvin cycle (photosynthetic carbon reduction cycle)?

Accepted Answer

A)  Phosphoglyceric acid (PG
A)  is the first stable compound produced in the Calvin cycle. 
B)  ATP and NADPH produced in the light reactions are utilized in the Calvin cyle. 
C)  Some of the glyceraldehyde 3-phosphate (GA3P) formed in the Calvin cycle can be used to make glucose while the remaining regenerate the compound that initiated the cycle. 
D)  The Calvin cycle is located on the thylakoid membranes within the chloroplasts. 
E)  Light is NOT DIRECTLY required to run the Calvin cycle. 
A)  Phosphoglyceric acid (PG
A)  is the first stable compound produced in the Calvin cycle. 
B)  ATP and NADPH produced in the light reactions are utilized in the Calvin cyle. 
C)  Some of the glyceraldehyde 3-phosphate (GA3P) formed in the Calvin cycle can be used to make glucose while the remaining regenerate the compound that initiated the cycle. 
D)  The Calvin cycle is located on the thylakoid membranes within the chloroplasts. 
E)  Light is NOT DIRECTLY required to run the Calvin cycle.

Question 12

The carbohydrate produced through photosynthesis is converted to other substances through the process of assimilation.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following statements is a CORRECT comparison between photosynthesis and respiration?

Accepted Answer

A)  Photosynthesis occurs only in plants whereas respiration occurs only in animals-not plants. 
B)  Photosynthesis is a metabolic pathway of many reactions whereas respiration occurs in a single step. 
C)  In plants, photosynthesis occurs only during the light whereas respiration occurs only during the dark. 
D)  Photosynthesis is an energy storing process whereas respiration is an energy releasing process. 
E)  Photosynthesis uses a metabolic pathway to make sugars whereas respiration uses the same metabolic pathway to break-down sugars. 
A)  Photosynthesis occurs only in plants whereas respiration occurs only in animals-not plants. 
B)  Photosynthesis is a metabolic pathway of many reactions whereas respiration occurs in a single step. 
C)  In plants, photosynthesis occurs only during the light whereas respiration occurs only during the dark. 
D)  Photosynthesis is an energy storing process whereas respiration is an energy releasing process. 
E)  Photosynthesis uses a metabolic pathway to make sugars whereas respiration uses the same metabolic pathway to break-down sugars.

Question 14

Which is a reduced molecule?

Accepted Answer

A)  NADP 
B)  NADPH 
C)  NAD+ 
D)  FADH2 
E)  Both [NADPH and FADH2] are correct 
A)  NADP 
B)  NADPH 
C)  NAD+ 
D)  FADH2 
E)  Both [NADPH and FADH2] are correct

Question 15

Energy conversion in plants takes place with 100% efficiency unlike energy conversion in machines.

Accepted Answer

A) True 
 B)False

Question 16

The most abundant chlorophyll pigment usually present in plants is

Accepted Answer

A)  chlorophyll a. 
B)  chlorophyll b. 
C)  chlorophyll c. 
D)  chlorophyll d. 
E)  chlorophyll e. 
A)  chlorophyll a. 
B)  chlorophyll b. 
C)  chlorophyll c. 
D)  chlorophyll d. 
E)  chlorophyll e.

Question 17

A photosynthetic unit consists of a molecule of chlorophyll a and a molecule of chlorophyll b.

Accepted Answer

A) True 
 B)False

Question 18

The first step of glycolysis involves a _____ reaction.

Accepted Answer

A)  dehydration 
B)  carboxylation 
C)  phosphorylation 
D)  condensation 
E)  light 
A)  dehydration 
B)  carboxylation 
C)  phosphorylation 
D)  condensation 
E)  light

Question 19

Oxidative phosphorylation takes place when protons flow across the inner membrane of a mitochondrion.This is called

Accepted Answer

A)  chemiosmosis. 
B)  assimilation. 
C)  fluorescence. 
D)  phosphorescence. 
E)  degradation. 
A)  chemiosmosis. 
B)  assimilation. 
C)  fluorescence. 
D)  phosphorescence. 
E)  degradation.

Question 20

ADP molecules can become ATP molecules if a phosphate "group" is added to them.

Accepted Answer

A) True 
 B)False

Exam 10: Plant Metabolism

The energy "currency" of the cell is

Photosynthesis is an example of a/an _____________ set of chemical reactions in plants.

In aerobic respiration, how many ATPs are produced from complete respiration of one molecule of glucose?

Which of the following are contained in each photosynthetic unit of photosystem I?

Which list gives the products of the light reactions of photosynthesis?

Most energy transfers in cells involve a linked set of oxidation and reduction reactions.This means that ______________.

Photorespiration decreases the efficiency of the light independent reactions in C3 plants under hot, dry conditions.

A temperature rise of 10 ∘\circ∘ C between 20 ∘\circ∘ and 30 ∘\circ∘ C can double or even triple respiration rates.

The light most extensively used in photosynthesis consists of wavelengths in the green range.

The splitting of water molecules on the inside of thylakoid membranes during photosynthesis is called

Which of the following is an INCORRECT statement concerning the Calvin cycle (photosynthetic carbon reduction cycle)?

The carbohydrate produced through photosynthesis is converted to other substances through the process of assimilation.

Which of the following statements is a CORRECT comparison between photosynthesis and respiration?

Which is a reduced molecule?

Energy conversion in plants takes place with 100% efficiency unlike energy conversion in machines.

The most abundant chlorophyll pigment usually present in plants is

A photosynthetic unit consists of a molecule of chlorophyll a and a molecule of chlorophyll b.

The first step of glycolysis involves a _____ reaction.

Oxidative phosphorylation takes place when protons flow across the inner membrane of a mitochondrion.This is called

ADP molecules can become ATP molecules if a phosphate "group" is added to them.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants: Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters

A temperature rise of 10^$\circ$C between 20^$\circ$ and 30^$\circ$C can double or even triple respiration rates.