Question

1. all the internal structures are suspended (floating) in what substance?
2. one of the bacteria in model 1 has a tail - like structure.

a. what is this structure called?
b. what might be the purpose of this structure?
c. based on your answer to the previous question, what might you infer about the absence of this structure in the other two bacteria cells?
model 2 - animal and plant cells
animal cell
plant cell
cell membrane
temporary vacuole
nuclear membrane
dna
nucleolus
nucleus
chloroplast
cytoplasm
endoplasmic reticulum
ribosomes (free or attached)
lysosome
mitochondria
vesicle
golgi apparatus
large permanent vacuole
cell wall

1. looking at model 2, list at least three structural differences (other than shape) between an animal and a plant cell.
2. where do you find the dna in each cell in model 2?
3. do both cells in model 2 have a nucleus?

Explanation:

Step1: Answer question 5

Cytoplasm suspends internal structures.

Step2: Answer question 6a

The tail - like structure is a flagellum.

Step3: Answer question 6b

It aids in movement.

Step4: Answer question 6c

The other bacteria may not need to move.

Step5: Answer question 7

Plant cell has cell wall, chloroplasts, large permanent vacuole; animal cell doesn't.

Step6: Answer question 8

In the nucleus of both cells.

Step7: Answer question 9

Yes, both have a nucleus.

Answer:

1. Cytoplasm

6a. Flagellum
6b. Aids in movement
6c. May not need to move

1. Plant cell has cell wall, chloroplasts, large permanent vacuole; animal cell doesn't
2. In the nucleus
3. Yes