Question 1

Which of the following cell types does not move materials through the body of the plant?

Accepted Answer

A) sclerenchyma 
B) xylem vessel members 
C) sieve tube members 
D) tracheids 
A) sclerenchyma 
B) xylem vessel members 
C) sieve tube members 
D) tracheids A

Question 2

You have been assigned the task of identifying the cells in a plant tissue sample.Using your microscope you determine the cells are living and their cell walls vary in thickness.Upon further observation you note that the cells are arranged in strands just below the epidermal surface.What cell type do you determine the cells to be?

Accepted Answer

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

Question 3

Of the following structures, which one is not a specialized cell of the epidermis?

Accepted Answer

A) guard cells 
B) trichomes 
C) sclereids 
D) root hairs 
A) guard cells 
B) trichomes 
C) sclereids 
D) root hairs C

Question 4

The water in a damaged root is seeping between cells and not moving into the vascular tissue.What part of the root has been damaged?

Accepted Answer

A) Primary vascular tissue 
B) Pith 
C) Root hairs 
D) Casparian strip 
A) Primary vascular tissue 
B) Pith 
C) Root hairs 
D) Casparian strip

Question 5

The pattern of leaf arrangement on a stem is called

Accepted Answer

A) protodermis. 
B) phyllotaxy. 
C) nodular termini. 
D) meristematic spacing. 
A) protodermis. 
B) phyllotaxy. 
C) nodular termini. 
D) meristematic spacing.

Question 6

You are given a sample of plant tissue and asked to identify the type of tissue and its location in the plant.Using your microscope, you notice two distinct layers of cells.One layer contains cells that are tightly compacted together while the other layer has loosely arranged cells.The cells in both layers contain many chloroplasts.Based on this information, you determine the tissue is

Accepted Answer

A) mesophyll tissue from a leaf. 
B) ground tissue from a stem. 
C) vascular tissue from a leaf. 
D) mesophyll tissue from a stem. 
A) mesophyll tissue from a leaf. 
B) ground tissue from a stem. 
C) vascular tissue from a leaf. 
D) mesophyll tissue from a stem.

Question 7

Annual rings in a tree trunk result from

Accepted Answer

A) deposition of colored materials in the oldest cells. 
B) the variation in cell size due to different growth conditions throughout a year. 
C) the alternation of xylem and phloem produced in one year. 
D) the kinds of cells, parenchyma or sclerenchyma, produced by the cambium. 
A) deposition of colored materials in the oldest cells. 
B) the variation in cell size due to different growth conditions throughout a year. 
C) the alternation of xylem and phloem produced in one year. 
D) the kinds of cells, parenchyma or sclerenchyma, produced by the cambium.

Question 8

Parenchyma, collenchyma, and sclerenchyma are all types of cells derived from

Accepted Answer

A) procambium tissue. 
B) ground tissue. 
C) vascular cambium tissue. 
D) cork cambium tissue. 
A) procambium tissue. 
B) ground tissue. 
C) vascular cambium tissue. 
D) cork cambium tissue.

Question 9

A friend who is not a biologist tells you that she grows irises from iris roots.You explain to her that the "root" she is planting is not a root, but instead is called a rhizome."Why?" she asked.You explain:

Accepted Answer

A) "A root grows vertically, not horizontally." 
B) "A rhizome has nodes and internodes and is really a modified stem that can exist underground." 
C) "A root stores nutrients, but rhizomes are underground stems that do not store nutrients." 
D) "A rhizome, although a modified stem, acts as a root does.In other words a rhizome is a stem-root combination." 
A) "A root grows vertically, not horizontally." 
B) "A rhizome has nodes and internodes and is really a modified stem that can exist underground." 
C) "A root stores nutrients, but rhizomes are underground stems that do not store nutrients." 
D) "A rhizome, although a modified stem, acts as a root does.In other words a rhizome is a stem-root combination."

Question 10

Primary growth in plants originates in

Accepted Answer

A) apical meristems. 
B) lateral meristems. 
C) vascular cambium. 
D) cork cambium. 
A) apical meristems. 
B) lateral meristems. 
C) vascular cambium. 
D) cork cambium.

Question 11

Xylem tissue may contain each of these cell types, except which?

Accepted Answer

A) vessel members 
B) tracheids 
C) sieve cells 
D) fibers 
A) vessel members 
B) tracheids 
C) sieve cells 
D) fibers

Question 12

In the vascular bundles of most dicot stems, primary phloem differentiates toward the ________of the stem, while primary xylem differentiates toward the ________of the stem.

Accepted Answer

A) middle; outside 
B) cork cambium; vascular cambium 
C) outside; middle 
D) shoot tip; roots 
A) middle; outside 
B) cork cambium; vascular cambium 
C) outside; middle 
D) shoot tip; roots

Question 13

Why does trimming the top of a plant make the plant bushier?

Accepted Answer

A) Trimming disrupts vertical transport routes for water and nutrients while enhancing horizontal transport routes. 
B) Trimming damages or removes the apical meristem which activates the axillary meristems to grow. 
C) Trimming stimulates the plant to produce more rhizomes which results in more branches. 
D) Trimming forces leaves around the vicinity of the cuts to become reproductive leaves. 
A) Trimming disrupts vertical transport routes for water and nutrients while enhancing horizontal transport routes. 
B) Trimming damages or removes the apical meristem which activates the axillary meristems to grow. 
C) Trimming stimulates the plant to produce more rhizomes which results in more branches. 
D) Trimming forces leaves around the vicinity of the cuts to become reproductive leaves.

Question 14

You have been given a plant sample and asked to identify a specific tissue.Upon investigation, you find the cells are all long in length and some of them have small pores.They all contain fluid.You test the fluid using various biochemical tests and discover the fluid contains an abundance of disaccharides.What type of tissue are you looking at?

Accepted Answer

A) xylem 
B) phloem 
C) root hair cells 
D) sclerenchyma 
A) xylem 
B) phloem 
C) root hair cells 
D) sclerenchyma

Question 15

A growing root comes into contact with a chemical that inhibits the golgi bodies.Which of the following would be a probable effect of this contact?

Accepted Answer

A) The root would begin to growing in an upward direction. 
B) The root would not be slick enough to move through the soil easily. 
C) The root would begin to simultaneously grow in multiple directions. 
D) The root would produce too much mucigel and oxygen uptake would be inhibited. 
A) The root would begin to growing in an upward direction. 
B) The root would not be slick enough to move through the soil easily. 
C) The root would begin to simultaneously grow in multiple directions. 
D) The root would produce too much mucigel and oxygen uptake would be inhibited.

Question 16

Which plant cells are the most common and the least specialized?

Accepted Answer

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

Question 17

What type of cells are joined end-to-end, conduct water and are connected to each other with strips of wall material?

Accepted Answer

A) sieve cells 
B) tracheids 
C) sieve tube members 
D) vessel members 
A) sieve cells 
B) tracheids 
C) sieve tube members 
D) vessel members

Question 18

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

Question 19

Which of the following statements correctly describes the vascular cambium?

Accepted Answer

A) It develops between the primary xylem and the primary phloem in dicots. 
B) It occurs only in monocot stems. 
C) It is important in the elongation of roots. 
D) It is formed by the ground meristem. 
A) It develops between the primary xylem and the primary phloem in dicots. 
B) It occurs only in monocot stems. 
C) It is important in the elongation of roots. 
D) It is formed by the ground meristem.

Question 20

If the WER gene were expressed in every root epidermal cell, the plant would

Accepted Answer

A) greatly increase its absorptive capacity. 
B) strengthen its attachment to the soil. 
C) increase in the diameter of its roots. 
D) greatly reduce its water and nutrient uptake. 
A) greatly increase its absorptive capacity. 
B) strengthen its attachment to the soil. 
C) increase in the diameter of its roots. 
D) greatly reduce its water and nutrient uptake.

Exam 36: Plant Form

Which of the following cell types does not move materials through the body of the plant?

Of the following structures, which one is not a specialized cell of the epidermis?

The water in a damaged root is seeping between cells and not moving into the vascular tissue.What part of the root has been damaged?

The pattern of leaf arrangement on a stem is called

Annual rings in a tree trunk result from

Parenchyma, collenchyma, and sclerenchyma are all types of cells derived from

A friend who is not a biologist tells you that she grows irises from iris roots.You explain to her that the "root" she is planting is not a root, but instead is called a rhizome."Why?" she asked.You explain:

Primary growth in plants originates in

Xylem tissue may contain each of these cell types, except which?

In the vascular bundles of most dicot stems, primary phloem differentiates toward the ________of the stem, while primary xylem differentiates toward the ________of the stem.

Why does trimming the top of a plant make the plant bushier?

A growing root comes into contact with a chemical that inhibits the golgi bodies.Which of the following would be a probable effect of this contact?

Which plant cells are the most common and the least specialized?

What type of cells are joined end-to-end, conduct water and are connected to each other with strips of wall material?

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

Which of the following statements correctly describes the vascular cambium?

If the WER gene were expressed in every root epidermal cell, the plant would

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In the vascular bundles of most dicot stems, primary phloem differentiates toward the of the stem, while primary xylem differentiates toward the of the stem.