10th Class Biology Chapter 1 English Medium Online MCQ Test With Answer
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MCQ's Test For Chapter 1 "Gaseous Exchange"
Try The MCQ's Test For Chapter 1 "Gaseous Exchange"
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Solved Mcqs File
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BILAL BILAL07 - Feb - 2026
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Muhammad Ahmed08 - May - 2026
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03 Min 07 Sec
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01 Min 27 Sec
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01 Min 53 Sec
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Ahmad Sultan11 - Feb - 2026
02 Min 17 Sec
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jamil gujjar jampur26 - Mar - 2026
03 Min 56 Sec
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Abdullah Shahzad13 - Feb - 2026
01 Min 56 Sec
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10th Class (English Medium)
Biology
Chapter 1
Important MCQ's
Sr.#
Question
Answer
1
Most of the gaseous exchange in a leaf occurs through.
A. Stomata
B. General surface
C. Cuticle
D. lenticels
2
Total chemicals in tobacco smoke are:
A. 1000
B. 2000
C. 3000
D. 4000
3
Lenticels are small pores found on the surface of which plant structures, enabling gaseous exchange?
A. Young leaves
B. Flower petals
C. Woody stems and roots
D. Fruit skins
4
The movement of gases like oxygen and carbon dioxide across the cell membranes in plants primarily occurs by the process of:
A. Active transport
B. Osmosis
C. Diffusion
D. Facilitated diffusion
5
The uncontrolled cell divisions in lungs tissue is called:
A. bronchitis
B. emphysema
C. cancer
D. Asthma
6
What are the tiny air sacs in the lungs where the actual exchange of gases (oxygen and carbon dioxide) occurs?
A. Bronchi
B. Trachea
C. Bronchioles
D. Alveoli
7
Pneumonia is an infection of the lungs that can be caused by bacteria, viruses, or fungi. What is the main effect of pneumonia on the lungs?
A. Thickening of the vocal cords
B. Collapse of the trachea
C. Inflammation and fluid accumulation in the alveoli
D. Hardening of the diaphragm
8
What primary factor directly regulates the opening and closing of stomata in plant leaves?
A. Root pressure
B. Turgor pressure in guard cells
C. Xylem sap flow
D. Phloem transport
9
In first stem of glycolysis glucose molecules breaks ans divide into two _______ molecules
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