Question 1

Which statement about leaf anatomy is not true?

Accepted Answer

A)  Opening of stomata is controlled by guard cells. 
B)  The cuticle is secreted by the epidermis. 
C)  The veins contain xylem and phloem. 
D)  The cells of the mesophyll are packed together, minimizing air space. 
E)  The spines of cacti are actually modified leaves. 
A)  Opening of stomata is controlled by guard cells. 
B)  The cuticle is secreted by the epidermis. 
C)  The veins contain xylem and phloem. 
D)  The cells of the mesophyll are packed together, minimizing air space. 
E)  The spines of cacti are actually modified leaves. D

Question 2

Growth in the diameter of the stems and roots, which is produced by vascular and cork cambia, is called _______ growth.

Accepted Answer

A)  modular 
B)  primary 
C)  secondary 
D)  tertiary 
E)  lateral 
A)  modular 
B)  primary 
C)  secondary 
D)  tertiary 
E)  lateral C

Question 3

The veins of a leaf consist of

Accepted Answer

A)  mesophyll cells. 
B)  guard cells. 
C)  stomata. 
D)  vascular cells. 
E)  epidermal cells. 
A)  mesophyll cells. 
B)  guard cells. 
C)  stomata. 
D)  vascular cells. 
E)  epidermal cells. D

Question 4

The advantage of the spongy arrangement of mesophyll cells in the lower leaf layer is that it allows for

Accepted Answer

A)  maximum absorption of sunlight for photosynthesis. 
B)  maximum diffusion of CO2 in the leaf. 
C)  maximum movement of water to leaf cells. 
D)  minimum water loss from the leaf. 
E)  minimum exchange of O2 within the leaf. 
A)  maximum absorption of sunlight for photosynthesis. 
B)  maximum diffusion of CO2 in the leaf. 
C)  maximum movement of water to leaf cells. 
D)  minimum water loss from the leaf. 
E)  minimum exchange of O2 within the leaf.

Question 5

In a young root, xylem cells can be observed in the

Accepted Answer

A)  root cap. 
B)  apical meristem. 
C)  zone of cell division. 
D)  zone of cell elongation. 
E)  zone of cell maturation. 
A)  root cap. 
B)  apical meristem. 
C)  zone of cell division. 
D)  zone of cell elongation. 
E)  zone of cell maturation.

Question 6

Photosynthesis takes place in the leaf tissue called _______.

Accepted Answer

The answer of Photosynthesis takes place in the leaf tissue...

Question 7

The pull of gravity is detected by a root's

Accepted Answer

A)  apical meristem. 
B)  cap. 
C)  endodermis. 
D)  pericycle. 
E)  region of elongation. 
A)  apical meristem. 
B)  cap. 
C)  endodermis. 
D)  pericycle. 
E)  region of elongation.

Question 8

Stems function in water transport. Which type of cell accomplishes this function?

Accepted Answer

A)  Collenchyma cells 
B)  Companion cells 
C)  Parenchyma cells 
D)  Sclerenchyma cells 
E)  Vessel elements 
A)  Collenchyma cells 
B)  Companion cells 
C)  Parenchyma cells 
D)  Sclerenchyma cells 
E)  Vessel elements

Question 9

Annual rings are seen in temperate-zone trees because

Accepted Answer

A)  heartwood cells alternate with sapwood cells. 
B)  resin is deposited in rings in the stem. 
C)  cork is deposited in rings in the stem. 
D)  phelloderm cell size varies with season. 
E)  xylem cell size varies with season. 
A)  heartwood cells alternate with sapwood cells. 
B)  resin is deposited in rings in the stem. 
C)  cork is deposited in rings in the stem. 
D)  phelloderm cell size varies with season. 
E)  xylem cell size varies with season.

Question 10

Which of the following is a difference between monocots and eudicots?

Accepted Answer

A)  Only eudicots have phytomers. 
B)  Only monocots have shoot and root apical meristems. 
C)  Monocot stems do not undergo secondary growth. 
D)  The vascular bundles of monocot stems are commonly arranged as a cylinder. 
E)  Eudicot embryos commonly have one cotyledon. 
A)  Only eudicots have phytomers. 
B)  Only monocots have shoot and root apical meristems. 
C)  Monocot stems do not undergo secondary growth. 
D)  The vascular bundles of monocot stems are commonly arranged as a cylinder. 
E)  Eudicot embryos commonly have one cotyledon.

Question 11

Parenchyma cells

Accepted Answer

A)  are part of the dermal tissue system. 
B)  generally have thick cell walls. 
C)  are not found in roots. 
D)  may store starch or oils. 
E)  have small vacuoles. 
A)  are part of the dermal tissue system. 
B)  generally have thick cell walls. 
C)  are not found in roots. 
D)  may store starch or oils. 
E)  have small vacuoles.

Question 12

One function of the root's pericycle is to

Accepted Answer

A)  give rise to lateral roots. 
B)  control the access of water to the vascular tissue. 
C)  store nutrients. 
D)  elongate the root. 
E)  interact with mycorrhizal fungi. 
A)  give rise to lateral roots. 
B)  control the access of water to the vascular tissue. 
C)  store nutrients. 
D)  elongate the root. 
E)  interact with mycorrhizal fungi.

Question 13

Leaf blades are attached to stems by

Accepted Answer

A)  buds. 
B)  nodes. 
C)  petioles. 
D)  veins. 
E)  bud scales. 
A)  buds. 
B)  nodes. 
C)  petioles. 
D)  veins. 
E)  bud scales.

Question 14

Guard cells

Accepted Answer

A)  protect the plant from herbivores. 
B)  secrete a waxy cuticle to prevent evaporation. 
C)  contain chemicals that poison insects. 
D)  control gas exchange. 
E)  inhibit germination of fungal spores. 
A)  protect the plant from herbivores. 
B)  secrete a waxy cuticle to prevent evaporation. 
C)  contain chemicals that poison insects. 
D)  control gas exchange. 
E)  inhibit germination of fungal spores.

Question 15

Which of the following plants or plant body parts is not vegetative?

Accepted Answer

A)  The stem 
B)  The root 
C)  A potato tuber 
D)  An onion bulb 
E)  A blueberry 
A)  The stem 
B)  The root 
C)  A potato tuber 
D)  An onion bulb 
E)  A blueberry

Question 16

Which of the following is not a component of the primary cell wall?

Accepted Answer

A)  Cellulose 
B)  Hemicelluloses 
C)  Pectins 
D)  Collenchymas 
E)  All of the above are components of the primary cell wall. 
A)  Cellulose 
B)  Hemicelluloses 
C)  Pectins 
D)  Collenchymas 
E)  All of the above are components of the primary cell wall.

Question 17

Which of the following is not a component of a phytomer?

Accepted Answer

A)  Leaf 
B)  Root hair 
C)  Axillary buds 
D)  Internode 
E)  All of the above are components of a phytomer. 
A)  Leaf 
B)  Root hair 
C)  Axillary buds 
D)  Internode 
E)  All of the above are components of a phytomer.

Question 18

Which of the following is least likely to be formed from an axillary bud?

Accepted Answer

A)  Flower 
B)  Branch 
C)  Runner 
D)  Leaf 
E)  Root 
A)  Flower 
B)  Branch 
C)  Runner 
D)  Leaf 
E)  Root

Question 19

Which of the following characteristics does not differ between eudicots and monocots?

Accepted Answer

A)  Flower parts 
B)  Leaf anatomy 
C)  Seed leaves (cotyledons) 
D)  Arrangement of the veins in leaves 
E)  Formation of seeds 
A)  Flower parts 
B)  Leaf anatomy 
C)  Seed leaves (cotyledons) 
D)  Arrangement of the veins in leaves 
E)  Formation of seeds

Question 20

The periderm of a tree functions primarily to

Accepted Answer

A)  transport sugars. 
B)  form branches. 
C)  absorb water. 
D)  protect the inner tissues. 
E)  support the leaves. 
A)  transport sugars. 
B)  form branches. 
C)  absorb water. 
D)  protect the inner tissues. 
E)  support the leaves.

Exam 34: The Plant Body

Which statement about leaf anatomy is not true?

Growth in the diameter of the stems and roots, which is produced by vascular and cork cambia, is called _______ growth.

The veins of a leaf consist of

The advantage of the spongy arrangement of mesophyll cells in the lower leaf layer is that it allows for

In a young root, xylem cells can be observed in the

Photosynthesis takes place in the leaf tissue called _______.

The pull of gravity is detected by a root's

Stems function in water transport. Which type of cell accomplishes this function?

Annual rings are seen in temperate-zone trees because

Which of the following is a difference between monocots and eudicots?

Parenchyma cells

One function of the root's pericycle is to

Leaf blades are attached to stems by

Guard cells

Which of the following plants or plant body parts is not vegetative?

Which of the following is not a component of the primary cell wall?

Which of the following is not a component of a phytomer?

Which of the following is least likely to be formed from an axillary bud?

Which of the following characteristics does not differ between eudicots and monocots?

The periderm of a tree functions primarily to

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