(A) Hydrolysis
(B) Glycolysis
(C) Photolysis
(D) Thermolysis
Answer: (C) Photolysis
The processes of splitting water in the presence of light is called photolysis.
Category: Biology MCQs Class 9
Biology MCQs questions with answers of class 9 or 9th class. SSC Part-I biology multiple choice questions from past papers.
Deficiency of vitamin K causes:
(A) VKDB
(B) Rickets
(C) Beri Beri
(D) Scurvy
Answer: (A) VKDB
Deficiency of vitamin K cause VKDB in some newborn. It is a bleeding problem.
Which of the following involves in the clotting of blood:
(A) Platelets
(B) Haemoglobin
(C) Albumin
(D) Globulin
answer: (A) Platelets
Platelets are involves in the clotting of blood.
The movement of organic material (food) in plants takes place through:
(A) Xylem
(B) Phloem
(C) Vessels
(D) Tracheid
Answer: (A) Xylem
The movement of organic material (food) in plants takes place through xylem cells.
secondary cell wall is made up of:
(A) Cellulose and Pectin
(B) Cellulose and Protein
(C) Cellulose and Lignin
(D) Lignin and Pectin
Answer: (C) Cellulose and Lignin
secondary cell wall is made up of cellulose and lignin.