Mitosis and Homeostasis Practice Test

Question 1

The image to the right shows chromosomes being pulled apart. Which phase of mitosis is this?

Answer 1

anaphase

Question 2

The spindle fibers begin to pull chromosomes apart during which phase?

Answer 2

anaphase

Question 3

During which part of mitosis is DNA coiling into chromosomes along with the nucleus starting to break down?

Answer 3

prophase

Question 4

The image to the right shows chromosomes lined up in the middle of the cell. Which phase of mitosis is this?

Answer 4

metaphase

Question 5

I start to pee because I drank too much soda before dinner. What is the stimulus?

Answer 5

my bladder is sensing that it is full

Question 6

What is homeostasis?

Answer 6

maintaining a stable internal environment

Question 7

My skin sense it is too cold, my brain tells my muscles to shiver to generate heat, what type of feedback is this?

Answer 7

negative feedback

Question 8

If I poke your finger with a needle, what is the feedback loop that would follow?

Answer 8

skin senses - brain interprets - brain sends signals to muscles - your finger moves

Question 9

What is CNS composed of?

Answer 9

brain and spinal cord

Question 10

How many phases are there in mitosis?

Answer 10

4