Question

cellular biology and microbiology
q1 extra nuclear genetic material in bacteria is called
a. vacuole b. ribosome c. plasmid d. cell wall
q2. structure which provides nourishment to developing sporophyte in fern is
a. sporangium b. spore c adult sporophyte plant d. prothallus
q3. chitin is an example of
a. monosaccharide b. disaccharide c. poly saccharide d. lipids
q4. function group present in protein are:
a. hydroxyl and phosphorus and amino b. carboxyl and hydroxyl c. both a & b d. carboxyl
q5. lipids which are good for your health is
a. saturated b. unsaturated c. both a &b d. none of the above
q6. function of endospore is
a. reproduction b. protection c. photosynthesis d. none of the above
q7. bonds which are developed between two glucose molecules isa. ester bonds b. ether bond c. glycosidic bond d. all of the above

Explanation:

• Q1: Plasmids are extra - nuclear genetic materials in bacteria.
• Q2: Prothallus provides nourishment to the developing sporophyte in ferns.
• Q3: Chitin is a polysaccharide.
• Q4: Proteins contain carboxyl and amino functional groups.
• Q5: Unsaturated lipids are generally good for health.
• Q6: Endospores are for protection of bacteria.
• Q7: Glycosidic bonds form between two glucose molecules.

Answer:

Q1. C. plasmid
Q2. D. Prothallus
Q3. C. Poly saccharide
Q4. None of the given options are correct (should be carboxyl and amino). But if we assume from the given options, no correct choice as presented.
Q5. B. unsaturated
Q6. B. Protection
Q7. C. Glycosidic bond