Question 1

Which statement concerning root hairs is not correct?

Accepted Answer

A) Root hairs are tubular extensions of individual epidermal cells. 
B) A root hair is isolated from its epidermal cell with a cross wall. 
C) Root hairs generally live only a few days before being sloughed off. 
D) Root hairs increase the absorption of water and minerals. 
E) Root hairs are located in the zone of maturation of a root. 
A) Root hairs are tubular extensions of individual epidermal cells. 
B) A root hair is isolated from its epidermal cell with a cross wall. 
C) Root hairs generally live only a few days before being sloughed off. 
D) Root hairs increase the absorption of water and minerals. 
E) Root hairs are located in the zone of maturation of a root.

Question 2

Which cells are characterized by thin cell walls,the largest vacuoles,and the least specialization?

Accepted Answer

A) epidermis 
B) collenchyma 
C) sclerenchyma 
D) parenchyma 
E) meristem 
A) epidermis 
B) collenchyma 
C) sclerenchyma 
D) parenchyma 
E) meristem

Question 3

______________ consist(s)of elongated supporting cells with unevenly thickened cells walls,usually located in strands beneath the epidermis.

Accepted Answer

A) Collenchyma 
B) Parenchyma 
C) Sclerenchyma 
D) Sieve elements 
E) Tracheary elements 
A) Collenchyma 
B) Parenchyma 
C) Sclerenchyma 
D) Sieve elements 
E) Tracheary elements

Question 4

How could you distinguish between a root hair versus a very small root?

Accepted Answer

A) Root hairs are white,roots are brown. 
B) Root hairs are single cells,roots are multicellular. 
C) Root hairs only absorb water,not nutrients like roots. 
D) Root hairs do not have a cuticle. 
E) The epidermis of a root hair is thinner than the epidermis of a root. 
A) Root hairs are white,roots are brown. 
B) Root hairs are single cells,roots are multicellular. 
C) Root hairs only absorb water,not nutrients like roots. 
D) Root hairs do not have a cuticle. 
E) The epidermis of a root hair is thinner than the epidermis of a root.

Question 5

Which of these might produce the longest cells?

Accepted Answer

A) tracheids 
B) sieve cells 
C) vessel members 
D) sclerenchyma 
E) root hairs 
A) tracheids 
B) sieve cells 
C) vessel members 
D) sclerenchyma 
E) root hairs

Question 6

You are eating a stalk of celery.As you bite into the celery,you notice strings hanging down from the end.These strings are

Accepted Answer

A) parenchyma tissue. 
B) phloem tissue. 
C) sclerenchyma tissue. 
D) collenchyma tissue. 
E) xylem tissuE. 
A) parenchyma tissue. 
B) phloem tissue. 
C) sclerenchyma tissue. 
D) collenchyma tissue. 
E) xylem tissuE.

Question 7

What is the function of the Casparian strip in the root?

Accepted Answer

A) It protects the surface of the root but allows water to be absorbed. 
B) It allows for horizontal transport of water and nutrients. 
C) It is the portion of the root that contains numerous root hairs. 
D) It is an internal water-proofed layer that prevents water and minerals from moving through intercellular spaces on their way to the vascular tissue. 
E) It seals the surface of roots that have been damaged. 
A) It protects the surface of the root but allows water to be absorbed. 
B) It allows for horizontal transport of water and nutrients. 
C) It is the portion of the root that contains numerous root hairs. 
D) It is an internal water-proofed layer that prevents water and minerals from moving through intercellular spaces on their way to the vascular tissue. 
E) It seals the surface of roots that have been damaged.

Question 8

Choose the letter of the best match from the following:
-Ultimate source of all cells that contribute to growth in length of stem or root.

Accepted Answer

A) protoderm 
B) vascular cambium 
C) apical meristem 
D) procambium 
E) ground meristem 
A) protoderm 
B) vascular cambium 
C) apical meristem 
D) procambium 
E) ground meristem

Question 9

Linen is woven from strands of sclerenchyma _______ that occur in the phloem of flax (Linum spp. ).

Accepted Answer

A) tracheid 
B) sieve 
C) sclerid 
D) collenchyma 
E) fiber 
A) tracheid 
B) sieve 
C) sclerid 
D) collenchyma 
E) fiber

Question 10

What is a distinctive characteristic of monocot stems compared to dicot ones?

Accepted Answer

A) The ground tissue is arranged in concentric rings. 
B) The vascular cambium is divided into segments. 
C) The vascular bundles are scattered throughout the ground tissue. 
D) The xylem and phloem are located in separate vascular bundles. 
E) The epidermis surrounds the ground tissuE. 
A) The ground tissue is arranged in concentric rings. 
B) The vascular cambium is divided into segments. 
C) The vascular bundles are scattered throughout the ground tissue. 
D) The xylem and phloem are located in separate vascular bundles. 
E) The epidermis surrounds the ground tissuE.

Question 11

In certain plants,some of the roots may be modified to carry out unusual functions.Which of these is not an example of one of these special functions?

Accepted Answer

A) help absorb oxygen 
B) store food or water 
C) carry out photosynthesis 
D) parasitize other plants 
E) discourage herbivores 
A) help absorb oxygen 
B) store food or water 
C) carry out photosynthesis 
D) parasitize other plants 
E) discourage herbivores

Question 12

Plant cells that give rise to two cells,one of which is free to differentiate into various kinds of cells that contribute to the plant body,are called

Accepted Answer

A) endodermal cells. 
B) primary cells. 
C) lateral cells. 
D) parenchyma cells. 
E) meristematic cells. 
A) endodermal cells. 
B) primary cells. 
C) lateral cells. 
D) parenchyma cells. 
E) meristematic cells.

Question 13

The waterproof cuticle covering the epidermis of land plants helps prevent dehydration,much like the skin of some land animals.As a consequence,what other evolutionary adaptation was important for most land plants?

Accepted Answer

A) the endodermis in the root 
B) root hairs on the root epidermis 
C) collenchyma fibers just beneath the surface of the epidermis 
D) stomates in the leaves 
E) trichomes on leaf surfaces 
A) the endodermis in the root 
B) root hairs on the root epidermis 
C) collenchyma fibers just beneath the surface of the epidermis 
D) stomates in the leaves 
E) trichomes on leaf surfaces

Question 14

Various modifications in leaves can make plants better adapted to their habitats.Which of the following is not an evolutionary modification of leaves?

Accepted Answer

A) floral leaves 
B) fruit-bearing leaves 
C) spines 
D) reproductive leaves 
E) insectivorous leaves 
A) floral leaves 
B) fruit-bearing leaves 
C) spines 
D) reproductive leaves 
E) insectivorous leaves

Question 15

Primary growth at the apical meristems can produce cells that differentiate into each of these cell types except

Accepted Answer

A) leaves. 
B) ground tissue. 
C) procambium. 
D) cork cambium. 
E) epidermis. 
A) leaves. 
B) ground tissue. 
C) procambium. 
D) cork cambium. 
E) epidermis.

Question 16

A birdhouse is nailed into a tree 6 feet up from the ground.If the tree grows about 2 feet taller each year,where will the birdhouse be 25 years later?

Accepted Answer

A) 50 feet 
B) 56 feet 
C) 26 feet 
D) 6 feet 
E) 4 feet 
A) 50 feet 
B) 56 feet 
C) 26 feet 
D) 6 feet 
E) 4 feet

Question 17

Xylem tissue may contain each of these cell types except

Accepted Answer

A) vessel members. 
B) tracheids. 
C) sieve cells. 
D) fibers. 
E) rays. 
A) vessel members. 
B) tracheids. 
C) sieve cells. 
D) fibers. 
E) rays.

Question 18

Choose the letter of the best match from the following:
-Produces parenchyma,collenchyma,and sclerenchyma cells.

Accepted Answer

A) protoderm 
B) vascular cambium 
C) apical meristem 
D) procambium 
E) ground meristem 
A) protoderm 
B) vascular cambium 
C) apical meristem 
D) procambium 
E) ground meristem

Question 19

Which of the following is not true about meristems?

Accepted Answer

A) They can be apical or lateral. 
B) Meristematic cells divide into two cells,one of which remains a meristem cell and another that becomes a plant body cell. 
C) Apical meristems give rise to three types of embryonic tissues. 
D) Meristematic cells fuse with other cells. 
E) They are responsible for primary and secondary growth. 
A) They can be apical or lateral. 
B) Meristematic cells divide into two cells,one of which remains a meristem cell and another that becomes a plant body cell. 
C) Apical meristems give rise to three types of embryonic tissues. 
D) Meristematic cells fuse with other cells. 
E) They are responsible for primary and secondary growth.

Question 20

Compound leaves

Accepted Answer

A) have two or more petioles per blade. 
B) have a blade divided into leaflets. 
C) are toothed at the edges. 
D) are alternately arrangeD. 
E) have palmate venation. 
A) have two or more petioles per blade. 
B) have a blade divided into leaflets. 
C) are toothed at the edges. 
D) are alternately arrangeD. 
E) have palmate venation.

Exam 36: Plant Form

Which statement concerning root hairs is not correct?

Which cells are characterized by thin cell walls,the largest vacuoles,and the least specialization?

______________ consist(s)of elongated supporting cells with unevenly thickened cells walls,usually located in strands beneath the epidermis.

How could you distinguish between a root hair versus a very small root?

Which of these might produce the longest cells?

You are eating a stalk of celery.As you bite into the celery,you notice strings hanging down from the end.These strings are

What is the function of the Casparian strip in the root?

Choose the letter of the best match from the following: -Ultimate source of all cells that contribute to growth in length of stem or root.

Linen is woven from strands of sclerenchyma _______ that occur in the phloem of flax (Linum spp. ).

What is a distinctive characteristic of monocot stems compared to dicot ones?

In certain plants,some of the roots may be modified to carry out unusual functions.Which of these is not an example of one of these special functions?

Plant cells that give rise to two cells,one of which is free to differentiate into various kinds of cells that contribute to the plant body,are called

The waterproof cuticle covering the epidermis of land plants helps prevent dehydration,much like the skin of some land animals.As a consequence,what other evolutionary adaptation was important for most land plants?

Various modifications in leaves can make plants better adapted to their habitats.Which of the following is not an evolutionary modification of leaves?

Primary growth at the apical meristems can produce cells that differentiate into each of these cell types except

A birdhouse is nailed into a tree 6 feet up from the ground.If the tree grows about 2 feet taller each year,where will the birdhouse be 25 years later?

Xylem tissue may contain each of these cell types except

Choose the letter of the best match from the following: -Produces parenchyma,collenchyma,and sclerenchyma cells.

Which of the following is not true about meristems?

Compound leaves

The Science of Biology

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