Question 1

The evaporation of water at stomatal surfaces on the leaves creates a(n)________ that pulls the water through the plant.

Accepted Answer

A) tension caused by the cohesive pull on the water column 
B) osmotic pull caused by cohesive push on the water column 
C) vacuum created by diffusing water 
D) evaporative push created by osmosis 
E) a diffusion gradient 
A) tension caused by the cohesive pull on the water column 
B) osmotic pull caused by cohesive push on the water column 
C) vacuum created by diffusing water 
D) evaporative push created by osmosis 
E) a diffusion gradient

Question 2

Which of the following statements is not correct?

Accepted Answer

A) When light strikes a pigment molecule in either Photosystem I or Photosystem II,the energy is funneled into a reaction center which consists of a chlorophyll a molecule bound to a membrane protein. 
B) The Reaction Center for Photosystem I is called P700,which is related to the visible wavelength of its maximum absorption. 
C) The Reaction Center for Photosystem II is called P680,which is related to the visible wavelength of its maximum absorption. 
D) Photosystem I and Photosystem II are interconnected pathways. 
E) During Photosystem I and II,a proton is excited and ejected,leaving P680 and P700 in a reduced state. 
A) When light strikes a pigment molecule in either Photosystem I or Photosystem II,the energy is funneled into a reaction center which consists of a chlorophyll a molecule bound to a membrane protein. 
B) The Reaction Center for Photosystem I is called P700,which is related to the visible wavelength of its maximum absorption. 
C) The Reaction Center for Photosystem II is called P680,which is related to the visible wavelength of its maximum absorption. 
D) Photosystem I and Photosystem II are interconnected pathways. 
E) During Photosystem I and II,a proton is excited and ejected,leaving P680 and P700 in a reduced state.

Question 3

When ADP is phosphorylated,it becomes which of the following?

Accepted Answer

A) DNA 
B) hydrolyzed 
C) AMP 
D) ATP 
E) oxidized 
A) DNA 
B) hydrolyzed 
C) AMP 
D) ATP 
E) oxidized

Question 4

Transpiration occurs because of which of the following?

Accepted Answer

A) evaporation of water at stomatal surfaces 
B) hypertonic soil solutions relative to the root solution 
C) absorption of water and dissolved minerals by root hairs 
D) osmotic pressure within xylem tissues 
E) the closing of guard cells 
A) evaporation of water at stomatal surfaces 
B) hypertonic soil solutions relative to the root solution 
C) absorption of water and dissolved minerals by root hairs 
D) osmotic pressure within xylem tissues 
E) the closing of guard cells

Question 5

Which of the following is correct?

Accepted Answer

A) Products of photosynthesis move from source to sink. 
B) The Pressure Flow Hypothesis may explain translocation in the phloem. 
C) The highly concentrated solution of sugar in the sieve tube members causes water to enter by osmosis from nearby xylem elements. 
D) After being uploaded from the phloem,sugars are usually converted to starch or other compounds. 
E) All of the above are correct. 
A) Products of photosynthesis move from source to sink. 
B) The Pressure Flow Hypothesis may explain translocation in the phloem. 
C) The highly concentrated solution of sugar in the sieve tube members causes water to enter by osmosis from nearby xylem elements. 
D) After being uploaded from the phloem,sugars are usually converted to starch or other compounds. 
E) All of the above are correct.

Question 6

Organic materials are translocated by the sieve tube members of the phloem.These sieve tube members are living and highly specialized.

Accepted Answer

A) True 
 B)False

Question 7

When the Photosystem I reaction center is oxidized,________ is reduced.

Accepted Answer

A) ADP 
B) NADPH 
C) NADP+ 
D) glucose 
E) H2O 
A) ADP 
B) NADPH 
C) NADP+ 
D) glucose 
E) H2O

Question 8

Which of the following statements is not correct?

Accepted Answer

A) The First Law of Thermodynamics states that energy can neither be created nor destroyed but can be converted from one form to another. 
B) The Second law of Thermodynamics states that in any transfer of energy there is always a loss of useful energy to the system,usually in the form of "heat" or radiant energy. 
C) All forms of energy are broadly classified as either potential energy or kinetic energy. 
D) When a molecule gains an electron,it is said to be oxidized;and when that molecule gives up the electron,it is said to be reduced. 
E) All of the above are correct. 
A) The First Law of Thermodynamics states that energy can neither be created nor destroyed but can be converted from one form to another. 
B) The Second law of Thermodynamics states that in any transfer of energy there is always a loss of useful energy to the system,usually in the form of "heat" or radiant energy. 
C) All forms of energy are broadly classified as either potential energy or kinetic energy. 
D) When a molecule gains an electron,it is said to be oxidized;and when that molecule gives up the electron,it is said to be reduced. 
E) All of the above are correct.

Question 9

In the Pressure Flow Model of the movement of sugar through the phloem,what process causes the pressure?

Accepted Answer

A) photosynthesis 
B) osmosis 
C) transpiration 
D) dialysis 
E) reverse osmosis 
A) photosynthesis 
B) osmosis 
C) transpiration 
D) dialysis 
E) reverse osmosis

Question 10

The main purpose of cellular respiration is the production of which of the following?

Accepted Answer

A) CO2 
B) NADH 
C) glucose 
D) ATP 
E) water 
A) CO2 
B) NADH 
C) glucose 
D) ATP 
E) water

Question 11

While photosynthesis uses electrons from ________ for its electron transport system,cellular respiration uses electrons from ________ for its electron transport system.

Accepted Answer

The answer of While photosynthesis uses electrons from ________ for...

Question 12

The most common disaccharide transported in the phloem is which of the following?

Accepted Answer

A) glucose 
B) fructose 
C) sucrose 
D) starch 
E) maltose 
A) glucose 
B) fructose 
C) sucrose 
D) starch 
E) maltose

Question 13

In chemiosmosis,the movement of ________ ions through the enzyme ________ generates ________ energy for the production of ________.

Accepted Answer

Hydrogen;A

Question 14

The first step of the Calving Cycle is the fixation of ________.

Accepted Answer

A) carbon dioxide 
B) ATP 
C) water 
D) oxygen 
E) glucose 
A) carbon dioxide 
B) ATP 
C) water 
D) oxygen 
E) glucose

Question 15

How are CAM plants different from all other plants?

Accepted Answer

A) The final product of CAM photosynthesis is sucrose. 
B) The CO2 that diffuses into CAM plants is incorporated into an organic acid. 
C) Carbon fixation occurs at night. 
D) Stomata remain open during the day. 
E) More than one of the above are correct. 
A) The final product of CAM photosynthesis is sucrose. 
B) The CO2 that diffuses into CAM plants is incorporated into an organic acid. 
C) Carbon fixation occurs at night. 
D) Stomata remain open during the day. 
E) More than one of the above are correct.

Question 16

For each of the following, indicate during which stage or stages of aerobic cellular respiration it occurs (i.e., glycolysis, Krebs cycle, and/or electron transport system).

-CO2 given off ________.

Accepted Answer

Question 17

What is the source of the minerals required by plants for normal growth and development?

Accepted Answer

A) the atmosphere 
B) the soil 
C) mycorrhizal fungi 
D) root hairs 
E) None of the above are correct. 
A) the atmosphere 
B) the soil 
C) mycorrhizal fungi 
D) root hairs 
E) None of the above are correct.

Question 18

The energy to power the Calvin Cycle reactions come from the ________ of the light reactions.

Accepted Answer

A) reactants 
B) products 
C) redox reactions 
D) photophosphorylation reactions 
E) enzymes 
A) reactants 
B) products 
C) redox reactions 
D) photophosphorylation reactions 
E) enzymes

Question 19

Of the following,which is not a process involved in the movement of water through a plant?

Accepted Answer

A) transpiration 
B) cohesion 
C) translocation 
D) absorption 
E) evaporation 
A) transpiration 
B) cohesion 
C) translocation 
D) absorption 
E) evaporation

Question 20

The absorption of water from the soil is accomplished by two pathways: ________ and ________.

Accepted Answer

A) Symplast;apoplast 
B) Apoptosis;hydroponics 
C) Hypertonic;hypotonic 
D) Diffusion;osmosis 
E) None of the above are correct 
A) Symplast;apoplast 
B) Apoptosis;hydroponics 
C) Hypertonic;hypotonic 
D) Diffusion;osmosis 
E) None of the above are correct

Exam 4: Plant Physiology

The evaporation of water at stomatal surfaces on the leaves creates a(n)________ that pulls the water through the plant.

Which of the following statements is not correct?

When ADP is phosphorylated,it becomes which of the following?

Transpiration occurs because of which of the following?

Which of the following is correct?

Organic materials are translocated by the sieve tube members of the phloem.These sieve tube members are living and highly specialized.

When the Photosystem I reaction center is oxidized,________ is reduced.

Which of the following statements is not correct?

In the Pressure Flow Model of the movement of sugar through the phloem,what process causes the pressure?

The main purpose of cellular respiration is the production of which of the following?

While photosynthesis uses electrons from ________ for its electron transport system,cellular respiration uses electrons from ________ for its electron transport system.

The most common disaccharide transported in the phloem is which of the following?

In chemiosmosis,the movement of ________ ions through the enzyme ________ generates ________ energy for the production of ________.

The first step of the Calving Cycle is the fixation of ________.

How are CAM plants different from all other plants?

For each of the following, indicate during which stage or stages of aerobic cellular respiration it occurs (i.e., glycolysis, Krebs cycle, and/or electron transport system). -CO2 given off ________.

What is the source of the minerals required by plants for normal growth and development?

The energy to power the Calvin Cycle reactions come from the ________ of the light reactions.

Of the following,which is not a process involved in the movement of water through a plant?

The absorption of water from the soil is accomplished by two pathways: ________ and ________.

Plants in Our Lives

The Plant Cell

The Plant Body

Plant Life Cycle: Flowers

Plant Life Cycle: Fruits and Seeds

Genetics

Plant Systematics and Evolution

Diversity of Plant Life

Human Nutrition

Origins of Agriculture

The Grasses

Legumes

Starchy Staples

Feeding a Hungry World

Stimulating Beverages

Herbs and Spices

Materials: Cloth, wood, and Paper

Medicinal Plants

Psychoactive Plants

Poisonous and Allergy Plants

The Algae

Fungi in the Natural Environment

Beverages and Foods From Fungi

Fungi That Affect Human Health

Plant Ecology

Filters

While photosynthesis uses electrons from for its electron transport system,cellular respiration uses electrons from for its electron transport system.

In chemiosmosis,the movement of ions through the enzyme generates energy for the production of .

For each of the following, indicate during which stage or stages of aerobic cellular respiration it occurs (i.e., glycolysis, Krebs cycle, and/or electron transport system). -CO₂ given off ________.

The absorption of water from the soil is accomplished by two pathways: and .