d. Exploring the South American Rain Forest,ascientistdiscoversanorganismand bri

Question

d. Exploring the South American Rain Forest,ascientistdiscoversanorganismand brings it back to the lab for further study. What characteristics should the scientist examine to tell whether the organism is an animal or a plant? Why? This refers to the whole organism and not individual cells. Answer: e. As previously mentioned in the section on Plant Structure and Function, the epidermal cells of onions and potatoes do not contain any chloroplasts. Why not? (Hint: remember that the structure of each cell is tied to its function.) Answer: f. Which single organelle would be the most abundant in the following cells? Answer:

Explanation / Answer

d. The scientist should look for the presence of cell wall and chloroplasts, as they are present only in plant cells. Then he should look for the presence of vacuoles, because plant cells possess a larger vacuole whereas animal cells possess a smaller vacuole.

e. The epidermal cells of onions and potatoes do not have a chloroplast because they are underground. There is no light underground therefore there are no chloroplast. The function of chloroplast is to perform photosynthesis, but in the absence of sunlight they cant perform photosynthesis. Therefore chloroplast are absent in the onion and potatoes.

f. vacuoles are the most abundant.

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