Question 1

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 
E) oil glands

Question 2

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

Accepted Answer

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

Question 3

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

Question 4

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

Accepted Answer

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

Question 5

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 are found only in eudicots and not in monocots. 
E) They are responsible for primary and secondary growth.

Question 6

Which of the following is not a modified stem?

Accepted Answer

A) rhizome 
B) tendril 
C) tuber 
D) corm 
E) spine

Question 7

You propose an experiment where root hairs of a particular plant species are continuously treated with an antibiotic while nutrient levels in the plant tissue are monitored.Based on your knowledge of root hairs,you hypothesize the plant will experience a deficiency in what nutrient?

Accepted Answer

A) potassium 
B) nitrogen 
C) calcium 
D) phosphorus 
E) carbon

Question 8

The waterproof cuticle covering the epidermis of land plants helps prevent dehydration,much like the skin of some land animals.As a consequence of having a cuticle,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) stomata in the leaves 
E) trichomes on leaf surfaces

Question 9

Which of these is not a function of the root cap?

Accepted Answer

A) gravity perception 
B) rapid cell division 
C) protection of the root tip 
D) pushing away soil particles as the root grows 
E) releasing a slimy lubricant fluid

Question 10

Which of the following cell types conducts water most rapidly through a plant?

Accepted Answer

A) parenchyma cells 
B) sclerenchyma cells 
C) sieve tubes 
D) vessel members 
E) phloem

Question 11

Which of these can found in oak wood but not in pine wood?

Accepted Answer

A) secondary xylem 
B) secondary phloem 
C) vessel members 
D) tracheids 
E) ray cells

Question 12

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. 
E) vascular tissue from a root.

Question 13

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. 
E) The root cap cells would begin to divide rapidly.

Question 14

Which statement about secondary growth in plants is not correct?

Accepted Answer

A) Secondary growth in plants is a result of lateral meristems.Trees and shrubs have active lateral meristems. 
B) Secondary growth in plants increases the girth (diameter)of woody plants. 
C) Secondary growth in woody plants results from two cylinders of actively dividing cells,the cork cambium and vascular cambium. 
D) The cork cambium produces secondary phloem while the vascular cambium produces secondary xylem. 
E) Only some plants have secondary growth.

Question 15

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

Exam 35: Plant Form