Why are lysosomes important to the health of cells?(1 point)

Question

Responses

They allow cell organelles to move freely through the cell as needed.
They allow cell organelles to move freely through the cell as needed.

They create cell boundaries and make cells rigid.
They create cell boundaries and make cells rigid.

They move proteins around the cell.
They move proteins around the cell.

They break down worn-out cell parts that are no longer needed.
They break down worn-out cell parts that are no longer needed.

Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts.(1 point)
Responses

Roots require fewer nutrients.
Roots require fewer nutrients.

Root cells have two central vacuoles.
Root cells have two central vacuoles.

Roots are underground and are not exposed to sunlight.
Roots are underground and are not exposed to sunlight.

Root cells have many mitochondria.

What is the main difference between prokaryotic and eukaryotic cells?(1 point)
Responses

Prokaryotes lack ribosomes to make proteins.
Prokaryotes lack ribosomes to make proteins.

Prokaryotes lack membrane-bound organelles.
Prokaryotes lack membrane-bound organelles.

Prokaryotes use RNA instead of DNA.
Prokaryotes use RNA instead of DNA.

Prokaryotes lack a cell membrane on the outside.

Use the image to answer the question.

An oval-shaped cell with some dots on the inside.



What type of cell is in the center of the image below? How do you know?

(1 point)
Responses

Prokaryotic cell because it does not have a nucleus, which would look like a solid circle in the cell.
Prokaryotic cell because it does not have a nucleus, which would look like a solid circle in the cell.

Prokaryotic cell because it has dots on the inside of the cell, these are membrane-bound organelles.
Prokaryotic cell because it has dots on the inside of the cell, these are membrane-bound organelles.

Eukaryotic cell because it does not have a nucleus, which would look like a solid circle in the cell.
Eukaryotic cell because it does not have a nucleus, which would look like a solid circle in the cell.

Eukaryotic cell because it has dots on the inside of the cell, these are membrane-bound organelles.

Which of the following is true about how mitochondria were acquired by host cells? (1 point)
Responses

A mitochondria cell’s membrane folded outward, creating a larger cell around itself.
A mitochondria cell’s membrane folded outward, creating a larger cell around itself.

A bacteria cell was engulfed into a host cell through the process of phagocytosis.
A bacteria cell was engulfed into a host cell through the process of phagocytosis.

The cell’s membrane folded inward, creating a pocket within itself called the mitochondria.
The cell’s membrane folded inward, creating a pocket within itself called the mitochondria.

A eukaryotic cell gave up its mitochondria to another cell through phagocytosis.

Answer 1

Here are the correct responses to each of your questions:

1. Why are lysosomes important to the health of cells?

   • They break down worn-out cell parts that are no longer needed.

2. Using your understanding of the function of chloroplasts and specialized cells, infer why plant root cells lack chloroplasts.

   • Roots are underground and are not exposed to sunlight.

3. What is the main difference between prokaryotic and eukaryotic cells?

   • Prokaryotes lack membrane-bound organelles.

4. What type of cell is in the center of the image below? How do you know?

   • Prokaryotic cell because it does not have a nucleus, which would look like a solid circle in the cell.

5. Which of the following is true about how mitochondria were acquired by host cells?

   • A bacteria cell was engulfed into a host cell through the process of phagocytosis.

Feel free to ask if you have any more questions!