Question

1. identify the structure labeled f.

a. vacuole
b. mitochondria
c. lysosome
d. peroxisome

1. why is the structure labeled f important to plant cells?

a. it provides energy to the cell through photosynthesis.
b. it provides structural support to the cell through high levels of turgor pressure.
c. these structures are very small and temporarily store materials.
d. these structures transport proteins to various parts of the cell.

1. which statement is true about a nucleus?

a. it is the site of enzyme storage.
b. it is the site of energy conversion.
c. it is surrounded by antibodies.
d. it is surrounded by a double membrane.

1. which phrase describes the function of the mitochondria?

a. it breaks down chemicals
b. it packages proteins
c. it supplies energy to the cell
d. it is a fluid - filled sac used for storage

1. which organelles are involved in defending a cell against viruses?

a. vesicles
b. lysosomes
c. vacuoles
d. chloroplasts

1. which features are found in plant cells but not in animal cells?

a. mitochondria and ribosomes
b. vesicles and vacuoles
c. cell walls and chloroplasts
d. centrioles and centrosomes

1. mitochondria and chloroplasts are both sites of...

a. energy conversion
b. energy manufacturing
c. photosynthesis
d. protein synthesis
b.c.1: cell structure and function

Explanation:

• Question 10: Vacuoles are large fluid - filled sacs in plant cells. Mitochondria are the power - houses (energy - producing). Lysosomes break down waste. Peroxisomes deal with peroxide metabolism. If the structure is large and for storage (common in plant cells), it's a vacuole.
• Question 11: Vacuoles maintain turgor pressure (structural support). Photosynthesis is by chloroplasts. Small temporary storage is not the main role. Transporting proteins is not a vacuole function.
• Question 12: The nucleus is surrounded by a double membrane (nuclear envelope). Enzyme storage is not its main role. Energy conversion is by mitochondria/chloroplasts. Antibodies are not around the nucleus.
• Question 13: Mitochondria supply energy (ATP) to the cell. Breaking down chemicals is lysosome/peroxisome. Packaging proteins is Golgi. Fluid - filled sac for storage is vacuole.
• Question 14: Lysosomes can break down viruses (foreign invaders). Vesicles are for transport. Vacuoles for storage. Chloroplasts for photosynthesis.
• Question 15: Plant cells have cell walls and chloroplasts (animal cells don't). Mitochondria and ribosomes are in both. Vesicles in both. Centrioles/centrosomes in animal cells (mostly).
• Question 16: Mitochondria (cellular respiration - energy conversion) and chloroplasts (photosynthesis - energy conversion) are sites of energy conversion. Energy manufacturing is not the term. Photosynthesis only chloroplasts. Protein synthesis is ribosomes.

Answer:

1. a. Vacuole
2. b. It provides structural support to the cell through high levels of turgor pressure.
3. d. It is surrounded by a double membrane.
4. c. It supplies energy to the cell
5. b. Lysosomes
6. c. Cell walls and chloroplasts
7. a. Energy conversion