Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Plants Form And Function > Primary Structures > Flashcards

Primary Structures Flashcards

1
Q

What is growth in plants?

A

Irreversible increase of dry mass associated with the development of an organism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What type of growth do plants exhibit throughout their life?

A

Indeterminate growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the primary structures of a dicot root?

A

Root hair, epidermis, cortex, endodermis, pericycle, xylem, phloem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the function of root hairs?

A

Absorption of water and minerals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the innermost single cell layer of the cortex in plant roots?

A

Endodermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the outermost cell layer of a root?

A

Epidermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the role of the cortex in plant roots?

A

Stores carbohydrates and transports water and minerals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the Casparian strip?

A

A suberin belt in the endodermis with no inter-cellular spaces, that blocks cortical apoplast from vascular apoplast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the pericycle?

A

A layer containing 2 or 3 parenchyma cell layers with meristematic function located interior to the endodermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Fill in the blank: The _______ is responsible for the formation of lateral roots.

A

Pericycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

True or False: The primary structure of monocot roots is significantly different from dicot roots.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What type of cells mainly make up the cortex?

A

Parenchyma cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the two main tissues found in the vascular cylinder of roots?

A

Xylem and phloem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the primary function of the epidermis in roots?

A

Protects inner parts of the root

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the composition of the cortex in plant roots?

A

Mostly parenchyma cells with intercellular spaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Fill in the blank: The _______ contains no inter-cellular spaces.

A

Endodermis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the role of parenchyma cells in the pericycle?

A

Involves in lateral root formation and secondary growth of the root

18
Q

What is the difference between primary structures of monocot and dicot roots

A

Distribution pattern of xylem and phloem tissue

19
Q

What is present inner to the pericycle in the roots

A

Vascular tissue as a solid core

20
Q

What surrounds the vascular tissue in monocot roots?

A

A ring if alternating xylem and phloem

21
Q

Is the pericycle in monocot roots meristemstic

A

No

22
Q

What is found in the central core of vascular tissue in monocot roots?

A

Parenchyma cells

23
Q

Describe the shape of the xylem tissue in a cross section of a dicot root.

A

Star shaped

This is in contrast to the circular arrangement in monocots.

24
Q

Where is phloem located in dicot root

A

In the grooves between the arms of xylem

25
Q

What can be found in the middle of solid core of vascular tissues in dicot roots?

A

Xylem

26
Q

What is the outer most layer in primary structure of dicot stem

A

Epidermal cell layer

27
Q

Function of epidermal cell layer

A

Protects inner parts from dessication and infections

28
Q

What are the pores on epidermal layer called

A

Stomata

29
Q

What is interior to the epidermis

A

Cortex

30
Q

What is the cortex mainly made up of

A

Parenchyma cells

31
Q

What is the location of collenchyma cells in the primary structure of dicto root

A

Just beneath the epidermal layer to provide strength

32
Q

What is the types of cells found in cortex to provide support

A

Sclerenchyma such as fibres

33
Q

How are the vascular bundles arranged in a dicot stem

A

In a ring

34
Q

Describe the arrangement of vascular bundles in dicot stems

A

Primary phloem towards cortex
Primary xylem towards pith
In-between a cambium tissue

35
Q

What is outside vascular bundles

A

Luster of sclerenchyma cells

36
Q

What is found inner to the vascular bundle

A

A large pith made up of parenchyma cells

37
Q

From where does the lateral shoots form

A

From lateral buds

38
Q

What is the nature of ground tissue of monocot stem compared to dicot stem

A

Ground tissue is not differentiated into cortex and pith

39
Q

What is the arrangement of vascular bundles in most monocot stems

A

The vascular bundles are scattered throughout the ground tissue in most monocot stems

40
Q

What surrounds the vascular bundle of monocot stem

A

Schlerenchyma

41
Q

Does monocot stem vascular bundle have cambium in between xylem and phloem

A

No

42
Q

Does monocot stem vascular bundle have cambium in between xylem and phloem

A

No

Plants Form And Function (8 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions