SOLUTION: 373158774 prokaryotic and eukaryotic cells - Studypool - Free Printable

Problem Analysis and Solution Explanation

The image provided contains a series of questions related to cellular structures, focusing on bacteria and plant/animal cells. Below is a detailed explanation of each question and its solution:

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#### Section 1: Bacteria Cell Structures

##### Question 5
> All the internal structures are suspended (floating) in what substance?

- Answer: Cytoplasm
- Explanation: The cytoplasm is the gel-like substance inside the cell membrane where all the organelles and other cellular components are suspended. It provides a medium for biochemical reactions and supports the structure of the cell.

##### Question 6
> 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?

- Part (a) Answer: Flagellum
- Explanation: The tail-like structure in bacteria is called a flagellum. It is used for locomotion, allowing the bacterium to move through its environment.

- Part (b) Answer: It helps the cell to move
- Explanation: The flagellum acts as a propeller, rotating to push the bacterium forward or backward, enabling it to navigate through liquids or semi-solid environments.

- Part (c) Answer: Other two cells would not move as much as the cell with Flagellum
- Explanation: Since the flagellum is responsible for movement, the absence of this structure in the other two bacteria suggests that they would have limited or no ability to move actively compared to the bacterium with a flagellum.

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#### Section 2: Animal and Plant Cells

##### Question 7
> Looking at Model 2, list at least three structural differences (other than shape) between an animal cell and a plant cell.

- Answer:
- Chloroplast
- Large permanent vacuole
- Cell wall

Additionally:
- Lysosome and Vesicle are seen only in animal cells.

- Explanation:
- Chloroplast: Found only in plant cells, chloroplasts are responsible for photosynthesis, converting light energy into chemical energy.
- Large permanent vacuole: Plant cells typically have a large central vacuole that stores water, nutrients, and waste products, helping maintain turgor pressure.
- Cell wall: Plant cells have a rigid cell wall made of cellulose, providing structural support and protection.
- Lysosome and Vesicle: These are more prominent in animal cells, involved in digestion and transport of materials within the cell.

##### Question 8
> Where do you find the DNA in each cell in Model 2?

- Answer: In the nucleus
- Explanation: In both plant and animal cells, the DNA is primarily located in the nucleus. The nucleus is the control center of the cell, containing the genetic material necessary for cell function, growth, and reproduction.

##### Question 9
> Do both cells in Model 2 have a nucleus?

- Answer: Yes
- Explanation: Both plant and animal cells are eukaryotic, meaning they have a well-defined nucleus. The nucleus is a key feature of eukaryotic cells, housing the cell's DNA and controlling cellular activities.

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Final Summary of Answers

1. Question 5: Cytoplasm
2. Question 6:
- (a) Flagellum
- (b) It helps the cell to move
- (c) Other two cells would not move as much as the cell with Flagellum
3. Question 7: Chloroplast, Large permanent vacuole, Cell wall (exist only in plant cells); Lysosome and Vesicle (seen only in animal cells)
4. Question 8: In the nucleus
5. Question 9: Yes

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Final Answer

\boxed{
\text{Cytoplasm, Flagellum, It helps the cell to move, Other two cells would not move as much as the cell with Flagellum, Chloroplast, Large permanent vacuole, Cell wall, In the nucleus, Yes}
}