Question

Match the structure and their components given in columns.

Structure	Component
(A) Bacterial flagellum	(p) Pilin
(B) Pili	(q) Flagellin
(C) Bacterial cell wall	(r) Murein
(D) Cell membrane	(s) Lipoprotein
	(t) Actin, tubules, fibrin

• A. A-t, B-s, C-q, D-p
• B. A-q, B-p, C-r, D-s
• C. A-t, B-p, C-s, D-q
• D. A-q, B-p, C-t, D-s

Answer 1

The correct option is B A-q, B-p, C-r, D-s

Some bacterial surface is covered with pili which serve to attach the bacteria on the surface or for the exchange of genetic material. The pili are made from protein pilin. The bacterial cell is surrounded by a cell wall which is made up of murein or peptidoglycan. The bacterial flagellum is made up of protein flagellin. The bacterial flagella do not show the 9+2 arrangement of tubules. The bacterial cell membrane like eukaryotic membrane is made up of lipoproteins, mostly phospholipids, and proteins.

So, the correct answer is option B.