Multiple Choice Questions :
1. _______ are green plastids containing green pigment chlorophyll.
(A) Chloroplasts
(B) Leucoplast
(C) Chromoplasts
(D) Xanthophyll
2. Select the INCORRECT statement about ribosome.
(A) Each ribosome consists of two sub- unitslarge and small subunit.
(B) Ribosomes are double membrane bound cell organelles.
(C) Ribosomes are made up of ribosomal RNA and protein.
(D) Ribosomes are involved in protein synthesis.
3. The space between the two nuclear membranes is known as
(A) peritonial space
(B) periplasmic space
(C) perinuclear space
(D) none of the above
4. In eukaryotic cells, the chromosomes are located in
(A) nucleus
(B) nucleolus
(C) golgi complex
(D) lysosomes
5. What is the normal chromosome number in humans?
(A) 23
(B) 46
(C) 48
(D) 16
6. During which stage of cell division chromosomes become distinct and can be clearly identified?
(A) Interphase
(B) Prophase
(C) Pachytene
(D) Metaphase
7. Microtubules are made up of protein.
(A) tubulin
(B) fibrion
(C) collagen
(D) myosin