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Worksheets

Root Modifications and Examples

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Adventitious root modifications can be explained as?

a)

Root tubers

b)

Support

c)

Capable of Photosynthesis

d)

Absorption of Food

2.

What is a tuberous root?

a)

Clusters of adventitious roots growing from stem nodes, swollen with indefinite shape. Example: Sweet potato (Ipomoea batatus).

b)

A type of root that stores nutrients and has a defined shape, such as carrots.

c)

Roots that grow deep into the soil to access water and nutrients, like taproots.

d)

A type of root that primarily serves for anchoring the plant, without nutrient storage.

3.

Significance of adventitious roots:

a)

They primarily absorb water and minerals from the soil.

b)

They can provide support, store nutrients, and sometimes perform photosynthesis.

c)

They are responsible for the plant's reproductive processes.

d)

They mainly serve as a means of vegetative propagation.

4.

Type of root modification found in sweet potatoes:

a)

Tuberous root

b)

Fibrous root

c)

Tap root

d)

Adventitious root

5.

Example of contractile root

a)

Crocus sativus (Saffron)

b)

Zea mays (Corn)

c)

Solanum tuberosum (Potato)

d)

Beta vulgaris (Beetroot)

6.

Breathing roots

a)

Another term for floating roots.

b)

Roots that absorb water from the air.

c)

Roots that grow above the ground.

d)

Roots that store nutrients.

7.

Examples of root buttresses

a)

Terminalia arjuna and Bombax malabarica

b)

Quercus robur and Pinus sylvestris

c)

Ficus elastica and Acer saccharum

d)

Carya ovata and Betula alleghaniensis

8.

Stilt root

a)

Adventitious roots arise from the lower nodes of the plant, penetrating the soil to provide additional support.

b)

Roots that grow above the ground to absorb moisture from the air.

c)

Roots that store nutrients and energy for the plant.

d)

Roots that grow horizontally to spread out and stabilize the plant.

9.

Example of a plant with nodulose roots:

a)

Mango ginger (Curcuma)

b)

Bamboo

c)

Cactus

d)

Oak tree

10.

Examples of climbing roots

a)

Piper nigrum (Pepper)

b)

Rosa rubiginosa (Sweet Briar)

c)

Cucumis sativus (Cucumber)

d)

Zea mays (Corn)

11.

Velamen tissue

a)

Special spongy tissue in epiphytic roots.

b)

A type of vascular tissue found in ferns.

c)

A protective layer in seed coats.

d)

A type of connective tissue in animals.

12.

Parasitic root function

a)

Penetrates host's cortex to reach vascular bundle, absorbing water, minerals, and food.

b)

Provides structural support to the plant.

c)

Stores energy in the form of carbohydrates.

d)

Facilitates photosynthesis by capturing sunlight.

13.

Support function of stilt roots

a)

Stilt roots provide support against wind forces in plants like sugarcane.

b)

Stilt roots help in nutrient absorption from the soil.

c)

Stilt roots store water for the plant during droughts.

d)

Stilt roots assist in photosynthesis by increasing surface area.

14.

Photosynthetic root / Assimilatory root

a)

Green chlorophyll-containing roots capable of carbon assimilation (photosynthesis) that hang freely like ribbons.

b)

Roots that primarily absorb water and nutrients from the soil.

c)

Roots that store energy in the form of starch.

d)

Roots that anchor the plant and prevent soil erosion.

15.

Contractile root function

a)

Shrinks to maintain underground stem level.

b)

Absorbs water and nutrients from the soil.

c)

Stores energy for the plant.

d)

Supports the plant above ground.