You are browsing the best resource for TNPSC Group 1 Exam.

for the Aspirants who are preparing for Group 2,2A, Group 4,VAO kindly refer your Syllabus and Prepare with our site.


Physiology


1. 

Which of the following is true Based on the nature of stimuli, tropism can be classified as follows
1. Phototropism: Movement of a plant part towards light. e.g. shoot of a plant.
2. Geotropism: Movement of a plant in response to gravity. e.g. root of a plant.
3. Hydrotropism: Movement of a plant or part of a plant towards water. e.g. root of a plant.
4. Thigmotropism: Movement of a plant part due to touch. e.g. climbing vines.
5. Chemotropism: Movement of a part of plant in response to chemicals. e.g. growth of a pollen tube in response to sugar present on the stigma

Answer : D. All are true

Justify your answer :  
Name:  
Email ID:  
 

2. 

The end product of photosynthesis is X which will be converted into starch and stored in the plant body. What is X

Answer : A. Glucose

Justify your answer :  
Name:  
Email ID:  
 

3. 

Which are the following is needed for Photosynthesis
1. Chlorophyll - Green pigment in leaves
2. Water
3. Carbon dioxide (from air)
4. Glucose
5. Sun Light

Answer : B. 1,2,3,5 is needed

Justify your answer :  
Name:  
Email ID:  
 

4. 

The loss of water in the form of water vapour from the aerial parts of the plant body is

Answer : D. transpiration

Justify your answer :  
Name:  
Email ID:  
 

5. 

In the transpiration process water evaporates through tiny pores called as

Answer : A. stomata

Justify your answer :  
Name:  
Email ID:  
 

6. 

In which the exchange of air takes place in plants

Answer : A. stomata

Justify your answer :  
Name:  
Email ID:  
 


TOP