Question

vrhs biology quiz 6b: the cell organelles mr barton

1. true or false: the cell above represents a prokaryote.
2. which of the following is a function of the cytoskeleton?

a. helps a cell keep its shape
b. surrounds the cell
c. contains dna
d. helps make proteins

1. true or false: a prokaryotic cell has dna is not contained in a nucleus.
2. which of the following organelles is only found in plant cells?

a. endoplasmic reticulum
b. golgi apparatus
c. chloroplasts

1. which of the following organisms is an example of a prokaryote?

a. plants
c. bacteria
b. animals
d. all of the above

1. which organelle is filled with enzymes that break down lipids, proteins, and carbohydrates?

a. golgi apparatus
b. endoplasmic reticulum
c. lysosome
d. mitochondrion

1. the main function of the cell wall is to

a. support and protect the cell.
b. direct the activities of the cell.
c. store dna.
d. help the cell move.

Explanation:

1. Prokaryotes lack a nucleus - if the cell has no nucleus it could be a prokaryote.
2. The cytoskeleton provides structural support to the cell.
3. Prokaryotic cells have their DNA in the cytoplasm, not in a nucleus.
4. Chloroplasts are unique to plant cells and are involved in photosynthesis.
5. Bacteria are prokaryotes, while plants and animals are eukaryotes.
6. Lysosomes contain enzymes for breaking down macromolecules.
7. The cell - wall's main function is to support and protect the cell.

Answer:

1. Depends on the cell in the image (not shown here, but if it has no nucleus, True; if it has a nucleus, False)
2. a. helps a cell keep its shape
3. True
4. c. chloroplasts
5. c. bacteria
6. c. lysosome
7. a. support and protect the cell.