Unit 2: Cell Membrane & Homeostasis

Question 1

Which of the following is false concerning phospholipids?

Accepted Answer

They consist of a head and two hydrophilic tails

Question 2

Transport of large molecules along the concentration gradient

Accepted Answer

Facilitated Diffusion

Question 3

The graph on the left depicts examples of:

Accepted Answer

Positive feedback

Question 4

This depicts

Accepted Answer

Phospolipid bilayer

Question 5

Drinking seawater makes your cells:

Accepted Answer

Lose water

Question 6

The cochlea of the inner ear detects 3D movement of the body, thus it is a:

Accepted Answer

Sensor

Question 7

This property of the membrane allows food in and keeps out hazardous pathogens

Accepted Answer

Selectively Permeable

Question 8

The kick reflect on your knee is controlled by your spinal cord. This would make the cord:

Accepted Answer

Integrating Center

Question 9

Homeostasis and feedback loops happen:

Accepted Answer

In an organism, Globally, Inside individual cells, In an ecosytem

Question 10

The dotted line down the middle indicates:

Accepted Answer

Set point

Question 11

Which of these processes a stimulus and initiates a response?

Accepted Answer

Integrating Center

Question 12

"A" refers to:

Accepted Answer

Carbohydrates

Question 13

At the cellular level, a receptor protein in a feedback loop would be a:

Accepted Answer

Sensor

Question 14

Good soil increases plant growth, which decay and increase the quantity & quality of the soil:

Accepted Answer

Positive Feedback

Question 15

In low light, pupils dilate to see better. The muscles that control this would be:

Accepted Answer

Effector

Question 16

Hotter global temperatures increases cloud cover, decreasing global temps. This is:

Accepted Answer

Negative feedback

Question 17

Which of the following is NOT passive transport?

Accepted Answer

Active Transport

Question 18

Which portion of this is hydrophobic?

Accepted Answer

A

Question 19

What is the purpose of feedback loops?

Accepted Answer

Maintain homeostasis

Question 20

Puberty is a surge of hormones causing a sudden, drastic, & irreversible change. This is:

Accepted Answer

Positive feedback

Question 21

"B" refers to:

Accepted Answer

Transport Protein

Question 22

"C" refers to

Accepted Answer

Anchor Protein

Question 23

"D" refers to:

Accepted Answer

Receptor Protein

Question 24

The more a baby eats, the more milk is produced, growing the baby so it eats more. This is:

Accepted Answer

Positive Feedback

Question 25

Which goes against the concentration gradient?

Accepted Answer

Active transport

Question 26

At the cellular level, the nucleus in a feedback loop would likely be

Accepted Answer

Integrating Center

Question 27

What if there is more salt outside a cell than inside?

Accepted Answer

Water will move out

Unit 2: Cell Membrane & Homeostasis

Questions 27

Unit 2: Cell Membrane & Homeostasis

Questions 27