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Bot lec - stems

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Which of the following is NOT considered a function of a stem?

a)

Support

b)

Conduction

c)

for growth

d)

Storage

e)

none

2.

Stems can also exhibit photosynthesis.

a)

True

b)

False

3.

Tuberous roots are classified as specialized stems.

a)

True

b)

False

4.

It is the area of the stem where a leaf or leaves are attached

a)

Internode

b)

Node

c)

Petiole

d)

terminal bud

5.

The hypodermis of a ____ stem is made of of sclerenchyma cells.

a)

monocot

b)

dicot

6.

Trichomes and cuticle are both present in ___ stem.

a)

monocot

b)

dicot

7.

The vascular system in ____ stems comprises of the two distinct regions, cortex and stele.

a)

monocot

b)

dicot

8.

It is the 2nd cambium within the cortex from the epidermis.

a)

phellogen

b)

vascular cambium

c)

xylem

d)

phloem

9.

It is responsible for gas exchange in woody trunk or stem of plants.

a)

stomata

b)

lenticel

c)

guard cells

d)

hydathodes

10.

Pith is present in the dicot stem but absent in monocot stem

a)

true

b)

false

11.

This are large, thin-walled xylem cells produced in the the year when water is usually in abundant supply.

a)

Summerwood

b)

Springwood

c)

Annual rings

d)

latex

12.

These are lighter streaks seen on transverse or cross section of tree trunk

a)

Secondary xylem

b)

Secondary phloem

c)

Vascular bundles

d)

Vascular rays

13.

These are older darker wood at the center which no longer conducts materials but helps strengthen the tree.

a)

Sapwood

b)

Softwood

c)

Hardwood

d)

Heartwood

14.

The Periderm of a woody dicots are composed of:

a)

primary and secondary phloem

b)

primary and secondary xylem

c)

cork tissue and cork cambium

d)

primary xylem and secondary phloem

15.

Which among the statements is/are INCORRECT?

1. The image is a dicot stem

2. The image is a monocot stem

3. The image has no distinct pith

4. The vascular bundle has no cambium

a)

1 only

b)

2 only

c)

1, 3, 4

d)

2, 3, 4

e)

1 and 4 only

16.

What is the sequence of stem development from inside to outside position?

1. primary phloem

2. pith

3. cortex

4. primary xylem

5. protoderm

6. procambium

a)

2, 1, 6, 4, 3, 5

b)

2, 4, 6, 1, 3, 5

c)

2, 1, 5, 4, 3, 6

d)

2, 4, 5, 1, 3, 6

17.

This root bark extract is used in intestinal problems like diverticulosis & Crohn’s disease.

a)

Cinchona pubescens

b)

Prunus serotina

c)

Uncaria tomentosa

18.

Fragaria is an example of:

a)

Tubers

b)

Stolons

c)

Bulbs

d)

Cladophylls

19.

Which of the following is an example of a modified stem?

a)

Thorns

b)

Spines

c)

Prickles

d)

Bristles

20.

The edible scaly part of an onion is a/an:

a)

modified stem

b)

modified root

c)

modified leaves

d)

fruit