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Published on: 09/09/2019
Plant Anatomy and Plant Physiology
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
Kreb’s cycle takes place in
chloroplast
mitochondrial matrix
stomata
inner mitochondrial membrane
2.
Which is formed during anaerobic respiration
Carbohydrate
Ethyl alcohol
Acetyl CoA
Pyruvate
3.
The xylem and phloem arranged side by side on same radius is called _________
radial
amphivasal
conjoint
None of these
4.
The endarch condition is the characteristic feature of
root
stem
leaves
flower
5.
__________ is ATP factory of the cells
6.
The source of O2 liberated in photosynthesis is __________
7.
Glycolysis takes place in ________.
8.
Xylem and phloem are arranged in an alternate radii constitute a vascular bundle called ____________
9.
Cortex lies between _______.
10.
Name the phenomenon by which carbohydrates are oxidized to release ethyl alcohol.
11.
What is the common step in aerobic and anaerobic pathway?
12.
What is collateral vascular bundle?
13.
Write the reaction for photosynthesis?
14.
Why should the light dependent reaction occur before the light independent reaction?
15.
How does the light dependent reaction differ from the light independent reaction? What are the end product and reactants in each? Where does each reaction occur within the chloroplast?
1.
(b)
mitochondrial matrix
2.
(b)
Ethyl alcohol
3.
(c)
conjoint
4.
(b)
stem
5.
( )
Mitochondria
6.
( )
water(H2O)
7.
( )
cytoplasm
8.
( )
Radial vascular bundles
9.
( )
epidermal and vascular tissues
10.
Anaerobic respiration is a process by which carbohydrates are converted into ethyl alcohol.
11.
Glycolysis is the common step in both aerobic and anaerobic pathway.
12.
When xylem lies towards the centre and phloem lies towards the periphery, it is called collateral vascular bundle.
13.
Carbon dioxide + Water ➝ Glucose + Water + Oxygen
14.
(i) During Iight independent reaction CO2 is reduced to carbohydrate by ATP and NADPH2 which are generated during light dependent reaction.
(ii) So light dependent reaction should occur before the light independent reaction.
15.
a) Difference between Light dependent and light independent reactions:
|
S.No |
Light dependent reaction |
Light Independent reaction |
|---|---|---|
| i | It requires sunlight. | It does not require sunlight. |
| ii | It takes place in the thylakoid membrane (grana) of the chloroplast. |
It takes place in the stroma of the chloroplast. |
| iii | These reactions use light energy to make ATP and NADPH2 | These reactions use the energy derived from light dependent reactions to form glucose. |
b) Reactants and End products:
| S.No | Reactions | Reactants | End products |
| i | Light dependent | Photosynthetic pigment, light, H2O | ATP, NADPH2, O2↑, H2O |
| ii | Light independent | CO2, ATP, NADPH2 | Glucose |
c) Place of occurrence:
(i) Light Dependent : Thylakoid membrane (grana) of the chloroplast.
(ii) Light Independent : Stroma of the chloroplast.
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
