Lecture 9/10

Question 1

What are the some of the major factors that exert effects on metabolism?

Answer 1

• rise in activity level

- (increase) Below thermonuclear zone

Question 2

True or false:

Rate of digestion within cold environments is drastically slower than in hot environments.

Answer 2

True

Question 3

True or false:

Smaller animals need to eat a greater ratio of Food:Body mass per week than larger animals.

Answer 3

True.

Small animals struggle to hang onto heat.

Question 4

What is BMR?

Answer 4

Basil metabolic rate.

Question 5

If BMR was proportional to body weight what type of line do we see? What do we actually see?

Answer 5

We would see a straight line.

We actually see a curved line.

Question 6

Why do we see a difference in BMR than what we expect?

Answer 6

Due to Surface area to volume ratio.

Question 7

What increases faster:

Surface area or Volume.

Answer 7

Volume.

Question 8

True or false:

The larger you are the slower your metabolic rate?

Answer 8

True.

This is because you can hold onto heat better.

Question 9

True to false:

It is metabolically expensive to be homeothermic?

Answer 9

True.

Question 10

True or false:

Size dictates metabolic rate within a species and when compared to other species.

Answer 10

True.

Question 11

True or false:

The larger you the faster your heart beasts to move around a greater volume of blood.

Answer 11

False.

Bigger heart = bigger muscels = slower BPM

Question 12

How fast is a mouse heartbeat?

Answer 12

600BMP

Question 13

What part of the body is often described as Fractile like?

Answer 13

Your circulatory/vascular system.

Veins, cappliaries.