10th Science | Biology Assignment Answers 2021 TN SCERT Full Answer Key

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10th Science | Biology 

Unit 12 Plant Anatomy and Plant Physiology

Assignment Answers 2021

TN SCERT Full Answer Key 

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10th Science TN SCERT Unit 12 Answers

 Assignment

• Class:10

• Subject: Science | Chemistry

• UNIT 12 - Plant Anatomy and Plant Physiology

Biology UNIT-12 Plant Anatomy and Plant Physiology

Part – A

 I. Choose the correct answer

1. Who is the father of plant anatomy?

a) Sachs 

b) Nehemiah Grew 

c) Melvin Calvin 

d) C.N.R.Rao

2. The group of cells which are similar or dissimilar in structure and origin that perform similar function is called 

a) Organ System 

b) Vascular Bundles 

c) Tissues 

d) Pericycle

3. The pores present in Epidermis are called

a) Stomata 

b) Cuticle 

c) Trichome 

d) Stele

4. Xylem and Phloem are present in different radii of ----------

 a) root 

b) stem 

c) leaf 

d) flower

5. If xylem and phloem lie on the same radii that vascular bundle is -------------- 

a) radial bundle 

b) conjoint bundle 

c) concentric and amphivasal 

d) amphicribral

 

Part - B

 II. Short Answer

 11.What are tissues?

12.Classify the types of plant tissues.

• Epidermis protects the inner tissues.
• Stomata helps in transpiration.
• Root hairs help in absorption of water and minerals.

13.What are the functions of Dermal or Epidremal tissue system?

• The outer most covering layer of plants.
  
• It contains epidermis, stomata and epidermal out growths.
• Epidermis are interrupted by many minute pores called stomata.
• Epidermis is covered by cuticle to check evaporation of water.
• Trichomes and root hairs are some epidermal growths.

III. Write In detail

16.a)Differentiate the following
Monocot root and Dicot root

b) Draw a neat labelled diagram of Radial vascular bundle

17.a) Write the components and functions of plant tissue system.

b) Classify the tissues based on their ability to divide