(A) Pepsin
(B) Bicarbonate
(C) HCl
(D) Gastrin
Answer: (A) Pepsin
Category: Biology MCQs Class 9
Biology solved multiple choice questions (MCQs) for class 9 with answers.
In which of the following steps of respiration is CO2 produced?
(A) Glycolysis
(B) Krebs cycle
(C) Electron Transport chain
(D) All of these
Answer: (B) Krebs cycle
Prosthetic groups are:
(A) Required by all enzymes
(B) Loosely attached with enzymes
(C) Protein in nature
(D) Tightly bound to enzymes
Answer: (D) Tightly bound to enzymes
In which stage of cell cycle do most cells spend their lives?
(A) Prophase
(B) Metaphase
(C) Interphase
(D) Telophase
Answer: (C) Interphase
A related group of genes form:
(A) order
(B) family
(C) class
(D) phylum
Answer: (B) family