Q5. Assertion: the cell wall prevents a bacterium from bursting. Reason: the cell wall gives the cell strong structural support and determines its shape. Are both true, and does the reason explain the assertion?
Both are true, and the reason explains the assertion (NCERT page 90).
Q6. Match: (a) glycogen granules, (b) fimbriae, (c) mesosome, (d) plasmid; with (i) attachment to host tissues, (ii) antibiotic resistance, (iii) inclusion body, (iv) infolding of the plasma membrane.
(a) iii, (b) i, (c) iv, (d) ii (NCERT pages 90–91).
Q7. How big is a prokaryotic ribosome, and where is it found in the cell?
About 15 nm by 20 nm; it is associated with the plasma membrane (NCERT page 91).
Q8. Name the three layers of the bacterial cell envelope, from the outside in.
Glycocalyx, cell wall, plasma membrane (NCERT page 90).