Question 1

The most effective way to kill a tree is to remove a ring of bark from the circumference.Why does the tree die?

Accepted Answer

A) No water can be transported from the roots to the leaves. 
B) No water can be transported from the leaves to the roots. 
C) No sugars can be transported from the leaves to the roots. 
D) Both water and sugars are prevented from being transported. 
A) No water can be transported from the roots to the leaves. 
B) No water can be transported from the leaves to the roots. 
C) No sugars can be transported from the leaves to the roots. 
D) Both water and sugars are prevented from being transported.

Question 2

Which of these is not an example of a parenchyma cell?

Accepted Answer

A) stem cells that form a callus in the making of cuttings 
B) cells that can form clones in tissue culture of plants 
C) support cells near the outside of nonwoody stems 
D) edible cells in fruits and vegetables 
E) tissue in leaves that photosynthesizes 
A) stem cells that form a callus in the making of cuttings 
B) cells that can form clones in tissue culture of plants 
C) support cells near the outside of nonwoody stems 
D) edible cells in fruits and vegetables 
E) tissue in leaves that photosynthesizes

Question 3

You have been told that Canada thistle is a weed that spreads via growth from lateral roots.You want to use a root miner insect for weed control.What would you look for to verify that this weed spreads via lateral roots and not by underground stems?

Accepted Answer

A) an epidermis at the periphery 
B) vascular bundles in a ring around the outside of a cross section 
C) a vascular bundle in the center surrounded by parenchyma tissue 
D) meristematic tissue at the tips of the branches 
A) an epidermis at the periphery 
B) vascular bundles in a ring around the outside of a cross section 
C) a vascular bundle in the center surrounded by parenchyma tissue 
D) meristematic tissue at the tips of the branches

Question 4

What best describes the shape of the entire vascular cambium system in trees? Visualizing a pine tree helps with this question.

Accepted Answer

A) hollow cylinder with a smaller diameter at the base of the tree 
B) hollow cylinder with a smaller diameter at the top of the tree 
C) solid column of cells with a smaller diameter at the base of the tree 
D) solid column of cells with a smaller diameter at the top of the tree 
A) hollow cylinder with a smaller diameter at the base of the tree 
B) hollow cylinder with a smaller diameter at the top of the tree 
C) solid column of cells with a smaller diameter at the base of the tree 
D) solid column of cells with a smaller diameter at the top of the tree

Question 5

Growth and development of plant parts involves

Accepted Answer

A) cell division to produce new cells. 
B) enlargement and elongation of cells. 
C) specialization of cells into tissues. 
D) all of the above. 
A) cell division to produce new cells. 
B) enlargement and elongation of cells. 
C) specialization of cells into tissues. 
D) all of the above.

Question 6

Root hairs on a root develop

Accepted Answer

A) on the entire root surface. 
B) before the cells elongate. 
C) after the cells elongate. 
D) on the root cap. 
A) on the entire root surface. 
B) before the cells elongate. 
C) after the cells elongate. 
D) on the root cap.

Question 7

The center of many stems contains only parenchyma cells;it is therefore best called a

Accepted Answer

A) simple tissue. 
B) complex tissue. 
C) dermal tissue. 
D) vascular tissue. 
E) meristematic tissue. 
A) simple tissue. 
B) complex tissue. 
C) dermal tissue. 
D) vascular tissue. 
E) meristematic tissue.

Question 8

Plants with thorns (modified stems)are typical of plants that historically have needed to protect themselves from

Accepted Answer

A) hungry insects. 
B) mammalian herbivores. 
C) windstorms. 
D) severe drought stress. 
E) all of the above. 
A) hungry insects. 
B) mammalian herbivores. 
C) windstorms. 
D) severe drought stress. 
E) all of the above.

Question 9

Monocot vascular bundles do not have a vascular cambium between the xylem and phloem.This means that

Accepted Answer

A) monocots are much less efficient at conducting water and sugars. 
B) monocots have very thin stems. 
C) monocots do not produce wood in annual rings. 
D) all of the above answers apply. 
A) monocots are much less efficient at conducting water and sugars. 
B) monocots have very thin stems. 
C) monocots do not produce wood in annual rings. 
D) all of the above answers apply.

Question 10

Which of these statements is true about xylem and phloem?

Accepted Answer

A) Xylem and phloem cells are derived from a ground meristem. 
B) Xylem is made of companion cells and vessel elements. 
C) Xylem cells do not contain cytoplasm. 
D) Phloem cells do not contain cytoplasm. 
E) All of these statements are correct. 
A) Xylem and phloem cells are derived from a ground meristem. 
B) Xylem is made of companion cells and vessel elements. 
C) Xylem cells do not contain cytoplasm. 
D) Phloem cells do not contain cytoplasm. 
E) All of these statements are correct.

Question 11

Imagine that you bought three identical young tomato plants.One you put to grow in the sunny location in tranquil part of your garden,one on the windy and sunny hill nearby,and one in the shady part of the garden.How these plants will look in two months' time?

Accepted Answer

A) The first one will be a medium size,the second one will be short with small leaves,and the third one will be spindly with big leaves. 
B) The first one will be short with small leaves,the second one will be a medium size,and the third one will be spindly with big leaves. 
C) The first one will be spindly with big leaves,the second one will be short with small leaves,and the third one will be a medium size. 
D) The first one will be a medium size,the second one will be spindly with big leaves,and the third one will be short with small leaves. 
E) The plants will be indistinguishable because they were identical when planted. 
A) The first one will be a medium size,the second one will be short with small leaves,and the third one will be spindly with big leaves. 
B) The first one will be short with small leaves,the second one will be a medium size,and the third one will be spindly with big leaves. 
C) The first one will be spindly with big leaves,the second one will be short with small leaves,and the third one will be a medium size. 
D) The first one will be a medium size,the second one will be spindly with big leaves,and the third one will be short with small leaves. 
E) The plants will be indistinguishable because they were identical when planted.

Question 12

Wood is an accumulation of

Accepted Answer

A) primary xylem. 
B) secondary xylem. 
C) vascular bundles. 
D) primary phloem. 
E) secondary phloem. 
A) primary xylem. 
B) secondary xylem. 
C) vascular bundles. 
D) primary phloem. 
E) secondary phloem.

Question 13

Plant leaf epidermal cells have an amazing array of trichomes.What is not a function of trichomes?

Accepted Answer

A) Impale insects that try to lay eggs on the leaves. 
B) Reflect sunlight in sunny locations. 
C) Open and close for gas exchange. 
D) Repel or trap insects with toxic compounds. 
E) Decrease water loss from leaves. 
A) Impale insects that try to lay eggs on the leaves. 
B) Reflect sunlight in sunny locations. 
C) Open and close for gas exchange. 
D) Repel or trap insects with toxic compounds. 
E) Decrease water loss from leaves.

Question 14

You find a plant unfamiliar to you and observe that it has vascular bundles scattered throughout the stem cross section.What do you conclude about the plant?

Accepted Answer

A) It is probably an herbaceous eudicot. 
B) It will probably get annual rings of wood. 
C) It is probably a monocot. 
D) It could be either a young eudicot or a monocot. 
A) It is probably an herbaceous eudicot. 
B) It will probably get annual rings of wood. 
C) It is probably a monocot. 
D) It could be either a young eudicot or a monocot.

Question 15

Which of the following cannot grow indeterminately?

Accepted Answer

A) shoot 
B) root 
C) stem 
D) leaf 
E) none of the above 
A) shoot 
B) root 
C) stem 
D) leaf 
E) none of the above

Question 16

The surface area of a plant's root system is substantially larger than the surface area of its shoot system.Which hypothesis best explains the extensive surface area of roots?

Accepted Answer

A) needed for contact with soil particles for mineral and water absorption 
B) provides structure for vascular tissue in the roots 
C) provides good anchoring ability of the root system 
D) needed to store sugars for overwintering capability 
A) needed for contact with soil particles for mineral and water absorption 
B) provides structure for vascular tissue in the roots 
C) provides good anchoring ability of the root system 
D) needed to store sugars for overwintering capability

Exam 36: Plant Form and Function

The most effective way to kill a tree is to remove a ring of bark from the circumference.Why does the tree die?

Which of these is not an example of a parenchyma cell?

You have been told that Canada thistle is a weed that spreads via growth from lateral roots.You want to use a root miner insect for weed control.What would you look for to verify that this weed spreads via lateral roots and not by underground stems?

What best describes the shape of the entire vascular cambium system in trees? Visualizing a pine tree helps with this question.

Growth and development of plant parts involves

Root hairs on a root develop

The center of many stems contains only parenchyma cells;it is therefore best called a

Plants with thorns (modified stems)are typical of plants that historically have needed to protect themselves from

Monocot vascular bundles do not have a vascular cambium between the xylem and phloem.This means that

Which of these statements is true about xylem and phloem?

Imagine that you bought three identical young tomato plants.One you put to grow in the sunny location in tranquil part of your garden,one on the windy and sunny hill nearby,and one in the shady part of the garden.How these plants will look in two months' time?

Wood is an accumulation of

Plant leaf epidermal cells have an amazing array of trichomes.What is not a function of trichomes?

You find a plant unfamiliar to you and observe that it has vascular bundles scattered throughout the stem cross section.What do you conclude about the plant?

Which of the following cannot grow indeterminately?

The surface area of a plant's root system is substantially larger than the surface area of its shoot system.Which hypothesis best explains the extensive surface area of roots?

Biology and the Tree of Life

Water and Carbon: the Chemical Basis of Life

Protein Structure and Function

Nucleic Acids and the Rna World

An Introduction to Carbohydrates

Lipids, membranes, and the First Cells

Inside the Cell

Cell-Cell Interactions

Cellular Respiration and Fermentation

Photosynthesis

The Cell Cycle

Meiosis

Mendel and the Gene

Dna and the Gene: Synthesis and Repair

How Genes Work

Transcription, RNA Processing, and Translation

Control of Gene Expression in Bacteria

Control of Gene Expression in Eukaryotes

Analyzing and Engineering Genes

Genomics

Principles of Development

An Introduction to Animal Development

An Introduction to Plant Development

Evolution by Natural Selection

Evolutionary Processes

Speciation

Phylogenies and the History of Life

Bacteria and Archaea

Protists

Green Algae and Land Plants

Fungi

An Introduction to Animals

Protostome Animals

Deuterostome Animals

Viruses

Water and Sugar Transport in Plants

Plant Nutrition

Plant Sensory Systems, signals, and Responses

Plant Reproduction

Animal Form and Function

Water and Electrolyte Balance in Animals

Animal Nutrition

Gas Exchange and Circulation

Electrical Signals in Animals

Animal Sensory Systems and Movement

Chemical Signals in Animals

Animal Reproduction

The Immune System in Animals

An Introduction to Ecology

Behavioural Ecology

Population Ecology

Community Ecology

Ecosystems

Biodiversity and Conservation Biology

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