Question

Check the items you included.

Viruses are nonliving and infect host cells.

Cells are the smallest form of structure and function in living organisms.

Viruses cannot make their own food, do not contain a cell membrane, and cannot reproduce.

Cells contain a cell membrane, DNA, RNA, ribosomes, cytoplasm, and are able to grow and reproduce, and respond to stimuli.

Viruses contain one nucleic acid, a capsid, and an envelope.

Answer 1

Good — I checked each item. Below are brief corrections and clarifications.

1) "Viruses are nonliving and infect host cells."
- Mostly correct. Many biologists consider viruses nonliving because they are acellular and lack independent metabolism and reproduction. They are obligate intracellular parasites and must infect host cells to replicate. (There is some debate about “living,” but the practical point stands.)

2) "Cells are the smallest form of structure and function in living organisms."
- Correct. Cells are the basic unit of life (structure, function, and reproduction) for organisms.

3) "Viruses cannot make their own food, do not contain a cell membrane, and cannot reproduce."
- Needs clarification:
- Viruses cannot carry out metabolism (cannot make their own food).
- They do not have a cell membrane because they are not cells. Some viruses have a lipid envelope (derived from a host membrane), but this is not a cellular membrane.
- Viruses cannot reproduce independently; they can replicate only inside a host cell using host machinery.

4) "Cells contain a cell membrane, DNA, RNA, ribosomes, cytoplasm, and are able to grow and reproduce, and respond to stimuli."
- Correct in general. (Note: there are specialized exceptions such as mature mammalian red blood cells lacking nuclei, but typical cells do have those features and perform those functions.)

5) "Viruses contain one nucleic acid, a capsid, and an envelope."
- Needs correction:
- Viruses contain genetic material made of either DNA or RNA (usually one type per virion, rarely both). That genetic material can be single- or double-stranded and may be segmented (multiple pieces) in some viruses (e.g., influenza).
- Viruses have a protein coat called a capsid.
- Some viruses have an envelope (a lipid layer), but many do not. Virions may also carry enzymes (e.g., reverse transcriptase) inside the particle.

If you want, I can rewrite each statement into corrected textbook-style sentences.