Question 19N.3.sl.TZ0.18a
| Date | November 2019 | Marks available | [Maximum mark: 1] | Reference code | 19N.3.sl.TZ0.18a |
| Level | sl | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | a | Adapted from | N/A |
Infectious diseases can be caused by bacteria or viruses.
State one difference between bacteria and viruses.
[1]
Any one of:
bacteria perform living functions «on their own and viruses do not without host cell»
OR
bacteria have cell walls «and viruses do not»
OR
bacteria do not have a capsid «and viruses do»
OR
bacteria larger than viruses
OR
bacteria reproduce by fission/budding «and viruses reproduce within a living host cell»
OR
bacteria affected by antibiotics «while viruses are not» ✔
NOTE: Accept “bacteria have flagella/cytoplasm/ribosome «and virus can have head/protein tail/double stranded RNA/single stranded DNA»”
Accept “asexual reproduction” for bacteria.
Accept other specific structural differences between bacteria and viruses, and examples of living functions that bacteria perform (such as excretion, reproduction etc.) that viruses do not.
Accept “bacteria are living and viruses are not”
