Question 1

Which of these tissue types is/are found throughout young plant bodies?

Accepted Answer

A) epidermis only 
B) periderm only 
C) vascular only 
D) epidermis and periderm 
E) epidermis and vascular 
A) epidermis only 
B) periderm only 
C) vascular only 
D) epidermis and periderm 
E) epidermis and vascular

Question 2

You discovered an unidentified weed and cut it almost to the ground with the lawn mower. Soon it was as tall as it was before you cut it. This growth is likely due to which growth region?

Accepted Answer

A) shoot apical meristem 
B) lateral bud 
C) root apical meristem 
D) vascular cambium 
E) cork cambium 
A) shoot apical meristem 
B) lateral bud 
C) root apical meristem 
D) vascular cambium 
E) cork cambium

Question 3

What is the source of energy for plant roots?

Accepted Answer

Photosynthesis in the shoot (leaves)uses

Question 4

What type of cell activity occurs in the meristem regions of plants?

Accepted Answer

A) mitosis 
B) secondary growth 
C) photosynthesis 
D) increased water uptake of cells 
E) storage of sugar 
A) mitosis 
B) secondary growth 
C) photosynthesis 
D) increased water uptake of cells 
E) storage of sugar

Question 5

Based on this figure, estimate the age of this tree in years.

Accepted Answer

A) 1 to 5 
B) 6 to 10 
C) 11 to 15 
D) 16 to 25 
E) over 26 
A) 1 to 5 
B) 6 to 10 
C) 11 to 15 
D) 16 to 25 
E) over 26

Question 6

As a 7-year-old child, you helped your father nail a birdhouse 7 feet high on a 10-foot-tall maple tree. If the tree grew an average of 12 inches per year, except during a dry year when it grew only 2 inches, how high in the tree is the birdhouse when you are 18 years old?

Accepted Answer

A) 17 feet 
B) 17 feet, 2 inches 
C) 7 feet 
D) 19 feet 
E) 10 feet 
A) 17 feet 
B) 17 feet, 2 inches 
C) 7 feet 
D) 19 feet 
E) 10 feet

Question 7

You discover a plant that has unusual fruit around the seed and leaves with parallel veins. In which of the two major groups of flowering plants does it belong, and why?

Accepted Answer

A) monocots, because it has parallel veins 
B) neither monocot nor dicot, because it has fruits 
C) either monocot or dicot, depending on the presence or absence of flowers 
D) dicots, because it has fruit around the seed 
A) monocots, because it has parallel veins 
B) neither monocot nor dicot, because it has fruits 
C) either monocot or dicot, depending on the presence or absence of flowers 
D) dicots, because it has fruit around the seed

Question 8

What are plasmodesmata?

Accepted Answer

A) root hairs that are adapted for mineral transport 
B) organelles that manufacture ATP in roots 
C) transport channels for sugars 
D) nutrients that can be used only by plants 
E) pores that allow small molecules to pass among neighboring cells 
A) root hairs that are adapted for mineral transport 
B) organelles that manufacture ATP in roots 
C) transport channels for sugars 
D) nutrients that can be used only by plants 
E) pores that allow small molecules to pass among neighboring cells

Question 9

All of the following are major functions of roots EXCEPT:

Accepted Answer

A) producing some hormones. 
B) transporting water and minerals. 
C) storing excess sugars. 
D) interacting with soil fungi. 
E) carrying out photosynthesis. 
A) producing some hormones. 
B) transporting water and minerals. 
C) storing excess sugars. 
D) interacting with soil fungi. 
E) carrying out photosynthesis.

Question 10

A plant that has only primary growth and no secondary growth does NOT have any:

Accepted Answer

A) stem elongation. 
B) expansion of its root system. 
C) vascular tissue. 
D) development of thick woody branches. 
E) flowers. 
A) stem elongation. 
B) expansion of its root system. 
C) vascular tissue. 
D) development of thick woody branches. 
E) flowers.

Question 11

Which of these pathways BEST summarizes the route of a mineral that is absorbed by a plant?

Accepted Answer

A) root hairs → pericycle → endodermis → endodermis → cortex → xylem 
B) root hairs → epidermis → endodermis → cortex → xylem 
C) root hairs → endodermis → cortex → pericycle → xylem 
D) root hairs → epidermis → cortex → endodermis → pericycle → xylem 
E) root hairs → cortex → epidermis → phloem → xylem 
A) root hairs → pericycle → endodermis → endodermis → cortex → xylem 
B) root hairs → epidermis → endodermis → cortex → xylem 
C) root hairs → endodermis → cortex → pericycle → xylem 
D) root hairs → epidermis → cortex → endodermis → pericycle → xylem 
E) root hairs → cortex → epidermis → phloem → xylem

Question 12

How does carbon dioxide enter a leaf?

Accepted Answer

A) CO2 passes through openings called stomata on the leaf surface. 
B) CO2 diffuses through the epidermal cells into the mesophyll. 
C) CO2 is moved by active transport into the leaf by special cells called guard cells. 
D) Atmospheric pressure forces CO2 through pits on the leaf surface. 
E) CO2 travels dissolved in the water in the xylem. 
A) CO2 passes through openings called stomata on the leaf surface. 
B) CO2 diffuses through the epidermal cells into the mesophyll. 
C) CO2 is moved by active transport into the leaf by special cells called guard cells. 
D) Atmospheric pressure forces CO2 through pits on the leaf surface. 
E) CO2 travels dissolved in the water in the xylem.

Question 13

In the summer, when plants are storing sugar that is being produced in their leaves and roots, the root is the ________ and the leaves are the ________.

Accepted Answer

A) xylem source; xylem sink 
B) xylem sink; xylem source 
C) phloem source; phloem sink 
D) phloem sink; phloem source 
E) xylem source; phloem sink 
A) xylem source; xylem sink 
B) xylem sink; xylem source 
C) phloem source; phloem sink 
D) phloem sink; phloem source 
E) xylem source; phloem sink

Question 14

Which of the following is the correct order of the tissues in a young dicot stem, from the center out?

Accepted Answer

A) pithcortexphloemxylemvascular cambiumepidermis 
B) pithphloemcortexxylemvascular cambiumepidermis 
C) cortexvascular cambiumxylemphloemepidermispith 
D) cortexxylemvascular cambiumphloempithepidermis 
E) pithxylemvascular cambiumphloemcortexepidermis 
A) pithcortexphloemxylemvascular cambiumepidermis 
B) pithphloemcortexxylemvascular cambiumepidermis 
C) cortexvascular cambiumxylemphloemepidermispith 
D) cortexxylemvascular cambiumphloempithepidermis 
E) pithxylemvascular cambiumphloemcortexepidermis

Question 15

If a beaver eats the bark all the way around a tree trunk (a process called "girdling"), why does the tree die?

Accepted Answer

A) The tree is susceptible to insect and fungal diseases. 
B) The phloem is damaged, and the transport of sugars ceases. 
C) Cells of the lateral meristem can no longer continue to divide. 
D) Water and minerals are no longer supplied to the leaves. 
E) The tree cannot continue to photosynthesize. 
A) The tree is susceptible to insect and fungal diseases. 
B) The phloem is damaged, and the transport of sugars ceases. 
C) Cells of the lateral meristem can no longer continue to divide. 
D) Water and minerals are no longer supplied to the leaves. 
E) The tree cannot continue to photosynthesize.

Question 16

Which of the following makes up most of an old tree trunk?

Accepted Answer

A) primary xylem 
B) secondary xylem 
C) primary phloem 
D) secondary phloem 
E) meristem tissue 
A) primary xylem 
B) secondary xylem 
C) primary phloem 
D) secondary phloem 
E) meristem tissue

Question 17

The most widely accepted explanation for the transport of sugars in phloem is the ________ theory.

Accepted Answer

A) pressure-flow 
B) transpiration 
C) bulk flow 
D) root pressure 
E) cohesiontension 
A) pressure-flow 
B) transpiration 
C) bulk flow 
D) root pressure 
E) cohesiontension

Question 18

Plant cells that are actively dividing are ________ cells.

Accepted Answer

A) differentiated 
B) conducting 
C) vascular 
D) ground 
E) meristem 
A) differentiated 
B) conducting 
C) vascular 
D) ground 
E) meristem

Question 19

You are not likely to find a nucleus in:

Accepted Answer

A) parenchyma. 
B) collenchyma. 
C) sclerenchyma. 
D) companion cells. 
E) tracheids. 
A) parenchyma. 
B) collenchyma. 
C) sclerenchyma. 
D) companion cells. 
E) tracheids.

Question 20

Water-conducting cells that are narrow and have small central cavities are called:

Accepted Answer

A) vessel elements. 
B) tracheids. 
C) sieve-tube elements. 
D) companion cells. 
E) collenchyma. 
A) vessel elements. 
B) tracheids. 
C) sieve-tube elements. 
D) companion cells. 
E) collenchyma.

Exam 43: Plant Anatomy and Nutrient Transport

Which of these tissue types is/are found throughout young plant bodies?

You discovered an unidentified weed and cut it almost to the ground with the lawn mower. Soon it was as tall as it was before you cut it. This growth is likely due to which growth region?

What is the source of energy for plant roots?

What type of cell activity occurs in the meristem regions of plants?

Based on this figure, estimate the age of this tree in years.

As a 7-year-old child, you helped your father nail a birdhouse 7 feet high on a 10-foot-tall maple tree. If the tree grew an average of 12 inches per year, except during a dry year when it grew only 2 inches, how high in the tree is the birdhouse when you are 18 years old?

You discover a plant that has unusual fruit around the seed and leaves with parallel veins. In which of the two major groups of flowering plants does it belong, and why?

What are plasmodesmata?

All of the following are major functions of roots EXCEPT:

A plant that has only primary growth and no secondary growth does NOT have any:

Which of these pathways BEST summarizes the route of a mineral that is absorbed by a plant?

How does carbon dioxide enter a leaf?

In the summer, when plants are storing sugar that is being produced in their leaves and roots, the root is the ________ and the leaves are the ________.

Which of the following is the correct order of the tissues in a young dicot stem, from the center out?

If a beaver eats the bark all the way around a tree trunk (a process called "girdling"), why does the tree die?

Which of the following makes up most of an old tree trunk?

The most widely accepted explanation for the transport of sugars in phloem is the ________ theory.

Plant cells that are actively dividing are ________ cells.

You are not likely to find a nucleus in:

Water-conducting cells that are narrow and have small central cavities are called:

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Capturing Solar Energy: Photosynthesis

Harvesting Energy: Glycolysis and Cellular Respiration

The Continuity of Life: Cellular Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amidst Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity Ii: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

How Do Ecosystems Work

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Reproduction and Development

Plant Responses to the Environment

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