Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 23 of 150)

Humming bird is an example of________________?
A. cold blooded animal
B. ectotherm
C. endotherm
D. heterotherm
Autophagosomes are____________?
A. Those lysosomes which eat parts of their own cells to generate energy.
B. Those lysosomes which eat old and worn out cellular organelles.
C. Lysosomes which help in extracellular digestion
D. Both a and b
Sapwood is formed from_____________?
A. Primary xylem
B. Secondary xylem
C. Primary phloem
D. Secondary phloem
Which of the following cytoskeletal fiber contain tubulin protein?
A. One which help in assembly of spindles during mitosis.
B. One involved in internal cell motion.
C. One involved in maintenance of cell shape.
D. Both b and c
Joints present in skull are example of_______________?
A. Fibrous joints
B. Cartilaginous joints
C. Synovial joints
D. Slightly moveable joints
Of the following which one is not the characteristic of mitochondria?
A. It contains f1 particles
B. It is involved in the synthesis of protein
C. It is a self replicating organelle
D. Number of mitochondria is constant