CISCE Board - ICSE Class 9

ICSE Class 9 Biology Core question bank (Biology)

Practice 438 free CISCE Board - ICSE Class 9 Biology - ICSE Class 9 Biology Core questions with answers and step-by-step solutions.

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Q1.

Plant Physiology (Photosynthesis): In 'Basic Biology: The Cell as the Basic Unit of Life and Tissues', the photolysis of water in the presence of light and chlorophyll yields:

(A)
$2H_2 O \to 4H^+ + 4e^- + O_2$ (Hill reaction in thylakoid grana) (Basic Biology: The Cell as the Basic Unit of Life and Tissues)
(B)
$CO_2 + H_2 O \to CH_4$
(C)
No oxygen released
(D)
None of these
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Q2.

Excretory System: What process occurs in Bowman's capsule under high hydrostatic pressure in 'Basic Biology: The Cell as the Basic Unit of Life and Tissues'?

(A)
Ultrafiltration producing glomerular filtrate (Basic Biology: The Cell as the Basic Unit of Life and Tissues)
(B)
Tubular secretion of glucose
(C)
Complete water reabsorption
(D)
None of these
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