Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
The part of chloroplast where CO2 is fixed to manufacture sugar is__________?
A: Stroma
B: Grana
C: Thylakoid
D: Outer membrane
Stroma
Highest form of learning is__________________?
A: Latent learning
B: Insight learning
C: Operant conditioning
D: Instinct
Insight learning
Which of the following hormone is polypeptide in nature____________?
A: Insulin
B: Thyroxine
C: ADH
D: Cortisone
ADH
Far-red light promotes flowering in_______________?
A: Short day plant
B: Long day plant
C: Day neutral plant
D: None of these
Short day plant
Which of the following is not present in mitochondria?
A: Enzymes
B: Co-enzymes
C: Ribosomes
D: Thylakoids
Thylakoids
Secretin inhibits production of__________________?
A: Gastric juice
B: Pancreatic juice
C: Bile
D: All of these
Gastric juice
Sapwood is formed from_____________?
A: Primary xylem
B: Secondary xylem
C: Primary phloem
D: Secondary phloem
Secondary xylem
Conversion of ammonia or ammonium ion into nitrites during nitrogen cycle occurs due_____________?
A: Rhizobium
B: Nitrosomonas
C: Nitrobacter
D: Pseudomonas
Nitrosomonas
Cellulose is the major component of__________?
A: Primary wall
B: Secondary wall
C: Middle lamella
D: all of the above
Primary wall