Question

in the graphs below.

1. which cell is most likely a plant cell?

(1)
(2)

1. which set of functions is directly controlled by the cell membrane?

(1) protein synthesis, respiration, digestion of food molecules
(2) active transport, facilitated diffusion, protection
(3) enzyme production, elimination of large molecules, duplication of dna codes
(4) release of atp molecules, regulation of cell reproduction, food production

1. which cellular organelle is responsible for making ribosomes?

(1) ribosome (3) nucleus
(2) nucleolus (4) golgi body

Explanation:

1. Plant cells have chloroplasts and a cell wall, which are present in Cell 1 as components contributing to its total mass.
2. The cell membrane controls movement of substances (active transport, facilitated diffusion) and provides protection for the cell. Protein synthesis is done by ribosomes, respiration by mitochondria, enzyme production by ribosomes/ER, DNA duplication by the nucleus, ATP release by mitochondria, and food production by chloroplasts.
3. The nucleolus, a structure inside the nucleus, is specifically responsible for producing ribosomal subunits that assemble into ribosomes. Ribosomes make proteins, the nucleus holds DNA, and the Golgi body processes proteins.

Answer:

1. (1) Cell 1
2. (2) Active transport, Facilitated Diffusion, protection
3. (2) Nucleolus