Question

1. which of the following contain complex membrane - bound organelles? 1. bacteria 2. viruses 3. eukaryotic 4. prokaryotic a. 1 and 2 b. 2 and 4 c. 3 only d. 4 only 7. look at the cross section of a cell membrane of a eukaryotic cell. h+ ions are being pumped from a low concentration to a high concentration. how do you describe this type of transport across the cell membrane? a. active transport b. passive transport c. facilitated diffusion d. co - transport 9. some prokaryotes and eukaryotes, such as bacteria and sperm cells, have specialized structure that helps them move. what are these structures called? a. pseudo - pods c. flagella b. cilia d. vacuoles 11. what is the function of letter c?

Explanation:

• For question 5: Eukaryotic cells have complex membrane - bound organelles. Bacteria are prokaryotes without such complex organelles, and viruses are not cells.
• For question 7: Active transport moves substances against the concentration gradient (from low to high) and requires energy (ATP is shown being used).
• For question 9: Flagella are structures that help some prokaryotes and eukaryotes move. Pseudo - pods are for amoeba - like movement, cilia are shorter hair - like structures for movement or other functions, and vacuoles are for storage.
• For question 11: Without seeing the full cell diagram details, assuming it's a plant cell, the cell wall (if C is the cell wall) provides protection and support.

Answer:

1. C. 3 only
2. A. active transport
3. C. flagella
4. B. provides protection and support