Question 1

Metabolism refers to ________.

Accepted Answer

A)  how rapidly your body converts food calories to kinetic energy 
B)  all the metabolic activities that take place in cells and entire organisms as a whole 
C)  the rate of a chemical reaction 
D)  enzyme catalysts 
E)  processing genetic information 
A)  how rapidly your body converts food calories to kinetic energy 
B)  all the metabolic activities that take place in cells and entire organisms as a whole 
C)  the rate of a chemical reaction 
D)  enzyme catalysts 
E)  processing genetic information

Question 2

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 3

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 4

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

Accepted Answer

A) True 
 B)False

Question 5

Type of chemical process that occurs during digestion.

Accepted Answer

A)  hydrolysis. 
B)  phosphorylation. 
C)  chemiosmosis. 
D)  fermentation. 
E)  carboxylation. 
A)  hydrolysis. 
B)  phosphorylation. 
C)  chemiosmosis. 
D)  fermentation. 
E)  carboxylation.

Question 6

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 breakdown 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 breakdown sugars.

Question 7

During glycolysis

Accepted Answer

A)  a 2-carbon acetyl fragment is bonded to coenzyme A. 
B)  2 NADH molecules are produced from each glucose molecule. 
C)  acetyl CoA is combined with oxaloacetic acid. 
D)  2 molecules of FADH2 are produced. 
E)  5-carbon compounds are produced. 
A)  a 2-carbon acetyl fragment is bonded to coenzyme A. 
B)  2 NADH molecules are produced from each glucose molecule. 
C)  acetyl CoA is combined with oxaloacetic acid. 
D)  2 molecules of FADH2 are produced. 
E)  5-carbon compounds are produced.

Question 8

A step in respiration during which sugar is oxidized to pyruvic acid is called

Accepted Answer

A)  phosphorylation. 
B)  sugar cleavage. 
C)  glycolysis 
D)  fermentation. 
E)  electron transport. 
A)  phosphorylation. 
B)  sugar cleavage. 
C)  glycolysis 
D)  fermentation. 
E)  electron transport.

Question 9

Photosynthetically active pigments absorb ________.

Accepted Answer

A)  all wavelengths of visible light 
B)  all wavelengths of light, including infrared and ultraviolet 
C)  specific wavelengths of red and blue light 
D)  reflect all wavelengths of visible light except green 
E)  transfer chemical energy to light energy 
A)  all wavelengths of visible light 
B)  all wavelengths of light, including infrared and ultraviolet 
C)  specific wavelengths of red and blue light 
D)  reflect all wavelengths of visible light except green 
E)  transfer chemical energy to light energy

Question 10

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

Accepted Answer

A) True 
 B)False

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 cycle. 
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 cycle. 
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

Resins, gums, oils, and other substances may be manufactured during the process of assimilation.

Accepted Answer

A) True 
 B)False

Question 13

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 14

The shorter the wavelength of light, the greater the energy.

Accepted Answer

A) True 
 B)False

Question 15

The English biochemist who discovered that isolated chloroplasts, free of other cellular contents, could briefly produce oxygen in the presence of an electron acceptor was

Accepted Answer

A)  Melvin Calvin. 
B)  Robin Hill. 
C)  Percival Priestly. 
D)  Jan Ingen-Housz. 
E)  Theodore de Saussure. 
A)  Melvin Calvin. 
B)  Robin Hill. 
C)  Percival Priestly. 
D)  Jan Ingen-Housz. 
E)  Theodore de Saussure.

Question 16

Photosynthesis can be defined as the conversion of light energy to biochemical energy.

Accepted Answer

A) True 
 B)False

Question 17

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 the answer choices 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 the answer choices are correct.

Question 18

During the light reactions of photosynthesis

Accepted Answer

A)  carbon dioxide is combined with certain organic compounds to produce glucose. 
B)  the hydrogen removed from water molecules is combined with carbon dioxide, forming glucose. 
C)  water is split through photon energy into hydrogen ions, electrons, and oxygen. 
D)  water is split by ATP into hydrogen ions, electrons, and oxygen. 
E)  carbon dioxide is split into oxygen and carbon atoms. 
A)  carbon dioxide is combined with certain organic compounds to produce glucose. 
B)  the hydrogen removed from water molecules is combined with carbon dioxide, forming glucose. 
C)  water is split through photon energy into hydrogen ions, electrons, and oxygen. 
D)  water is split by ATP into hydrogen ions, electrons, and oxygen. 
E)  carbon dioxide is split into oxygen and carbon atoms.

Question 19

Photosynthetic "light dependent" reactions can take place in the dark.

Accepted Answer

A) True 
 B)False

Question 20

When a pigment absorbs light, certain electrons are raised to a higher energy level. Subsequent emission of light energy when the electron returns to its lower energy level is called

Accepted Answer

A)  reduction. 
B)  photoelectric effect. 
C)  reaction-center phenomenon. 
D)  antenna pigment emission. 
E)  fluorescence. 
A)  reduction. 
B)  photoelectric effect. 
C)  reaction-center phenomenon. 
D)  antenna pigment emission. 
E)  fluorescence.

Exam 10: Plant Metabolism

Metabolism refers to ________.

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

The most abundant chlorophyll pigment usually present in plants is

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

Type of chemical process that occurs during digestion.

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

During glycolysis

A step in respiration during which sugar is oxidized to pyruvic acid is called

Photosynthetically active pigments absorb ________.

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

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

Resins, gums, oils, and other substances may be manufactured during the process of assimilation.

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

The shorter the wavelength of light, the greater the energy.

The English biochemist who discovered that isolated chloroplasts, free of other cellular contents, could briefly produce oxygen in the presence of an electron acceptor was

Photosynthesis can be defined as the conversion of light energy to biochemical energy.

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

During the light reactions of photosynthesis

Photosynthetic "light dependent" reactions can take place in the dark.

When a pigment absorbs light, certain electrons are raised to a higher energy level. Subsequent emission of light energy when the electron returns to its lower energy level is called

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 Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

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Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants - Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

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Photorespiration decreases the efficiency of the light independent reactions in C₃plants under hot, dry conditions.