Quiz about Review: Membrane Transport and Homeostasis

Question 1

Which part of the plasma membrane is hydrophobic?

Accepted Answer

Phospholipid Tails

Answer

Phospholipid Heads

Answer

The entire phospholipid

Answer

The entire membrane is hydrophilic

Question 2

Which part of the plasma membrane is hydrophilic?

Accepted Answer

Phospholipid heads

Answer

Phospholipid bilayer

Answer

Proteins

Answer

Cholesterol

Question 3

What does the phospholipid bilayer create a barrier around?

Accepted Answer

Cytoplasm

Answer

Vacuole

Answer

Plasma desomata

Answer

Cell wall

Question 4

What is the role of the plasma mebrane?

Accepted Answer

Regulates the movement in and out of the cell

Answer

Regulate what enters the cell

Answer

Regulate what exits the cell

Answer

Regulates movement of water molecules

Question 5

Which is NOT a part of the plasma membrane?

Accepted Answer

Viruses

Answer

Phospholipids

Answer

Cholesterol

Answer

Proteins

Question 6

What does "hydrophilic" mean?

Accepted Answer

Water LOVING

Answer

Water FEARING

Answer

Water ATTRACTING

Answer

Water JUMPING

Question 7

What does hydrophobic mean?

Accepted Answer

Water FEARING

Answer

Water LOVING

Answer

Water JUMPING

Answer

Water ATTRACTING

Question 8

What is the role of cholesterol in the membrane?

Accepted Answer

Maintains fluidity in the membrane

Answer

Regulates movement of proteins across the membrane

Answer

Regulates what enters and exits the cell

Answer

Provides homeostasis

Question 9

What is the plasma membrane mostly composed of?

Accepted Answer

Phospholipids

Answer

Proteins

Answer

Carrier and Channel Proteins

Answer

Cholesterol

Question 10

What is homeostasis?

Accepted Answer

A state of balance maintained by the plasma membrane

Answer

Every living cell existing in a liquid environment

Answer

A state of panic that you are in after too much salt leaves your cells

Answer

Regulated movement of sugar across a membrane

Question 11

All organisms must maintain homeostasis.

Accepted Answer

True

Answer

False

Question 12

Single celled organisms like bacteria must maintain homeostasis.

Accepted Answer

True

Answer

False

Question 13

When multicellular organisms maintain homeostasis they do so through a single cell.

Accepted Answer

False

Answer

True

Question 14

The cells of multicellular organisms become specialized for particular tasks and communicate with one another to maintain homeostasis.

Accepted Answer

True

Answer

False

Question 15

Which of the following is an example of a specialized cell that can be found in a multicellular organism?

Accepted Answer

Red Blood Cell

Accepted Answer

Chloroplast

Answer

Lysosome

Answer

Chlorondria

Question 16

Which of the following is NOT a level of organization?

Accepted Answer

Pancreas

Accepted Answer

Stomach

Answer

Cell

Answer

Tissues

Answer

Organ

Question 17

What is the correct order of levels of organization?

Accepted Answer

Cell, Tissue, Organ, Organ System, Organism

Answer

Cell, Organ, Organ System, Organism

Answer

Organism, Organ System, Organ, Tissue

Answer

Cell, Tissue, Organism, Organ System, Organ

Question 18

Which of the following is NOT an example of a homeostatic mechanism?

Accepted Answer

Repair of a broken bone

Answer

Regulation of blood sugar levels

Answer

Regulation of body temperature

Answer

Regulation of blood pressure

Question 19

Which of the following is an example of negative feedback?

Accepted Answer

Regulation of body temperature

Answer

Positive feedback

Answer

Active transport

Answer

Regulation of birth

Question 20

What is negative feedback?

Accepted Answer

When your body counters a response to bring you back to balance

Answer

When your body amplifies a response

Answer

Achieving balance

Answer

When your body amplifies a response to bring you back to balance

Question 21

In the human nervous system, the brain is an example of what level of organization?

Accepted Answer

Organ

Answer

Cell

Answer

Tissue

Answer

Organ System

Question 22

What is a solute?

Accepted Answer

Substance being dissolved

Answer

Any substance, usually liquid, which is capable of dissolving substances

Answer

Solution

Answer

All of the above

Question 23

Particles are constantly in motion.

Accepted Answer

True

Answer

False

Question 24

How do particles tend to disperse themselves?

Accepted Answer

From high to low concentration

Answer

From medium to high concentration

Answer

From low to medium concentration

Answer

From high to medium concentration

Question 25

What is diffusion?

Accepted Answer

Process by which particles move from an area of high to low concentration

Answer

Process by which particles move from an area of high to high concentration

Answer

Process by which particles move from an area of low to high concentration

Answer

Process by which particles move from an area of medium to high concentration

Question 26

Which of the following is NOT an example of diffusion?

Accepted Answer

Pumping ions across a membrane against the concentration gradient

Answer

Spraying perfume in a classroom

Answer

Smells that spread when cooking

Answer

Spraying cologne in a bathroom

Question 27

Once equilibrium has been reached, particles will stop moving.

Accepted Answer

False

Answer

True

Question 28

What does passive transport require?

Accepted Answer

None of the above

Answer

Proteins

Answer

ATP

Answer

Phospholipids

Question 29

Facilitated diffusion is an example of passive transport.

Accepted Answer

True

Answer

False

Question 30

What is osmosis?

Accepted Answer

Diffusion of water through a selectively permeable membrane

Answer

Diffusion of oil through a selectively permeable membrane

Answer

Diffusion of salt through a selectively permeable membrane

Answer

Diffusion of sugar through a selectively permeable membrane

Question 31

What proteins do water molecules move across the membrane in during osmosis?

Accepted Answer

Aquaporins

Answer

Aquaman

Answer

Aquaforage

Answer

Aquamaybeorins

Question 32

What is the goal of osmosis?

Accepted Answer

To establish equilibrium of water and solute concentrations

Answer

To establish equilibrium of salt

Answer

To establish equilibrium of water

Answer

To establish equilibrium of water on one side of the membrane

Question 33

If there is a higher concentration of water outside of a cell then it is...

Accepted Answer

Hypotonic

Answer

Isotonic

Answer

Hypertonic

Answer

Islatonic

Question 34

If a cell SWELLS it is an example of which type of solution?

Accepted Answer

Hypotonic

Answer

Isotonic

Answer

Islatonic

Answer

Hypertonic

Question 35

Which of the following would cause a cell to shrink?

Accepted Answer

Hypertonic

Answer

Isotonic

Answer

Islatonic

Answer

Hypotonic

Question 36

Active transport occurs when we must transport materials with the concentration gradient.

Accepted Answer

False

Answer

True

Question 37

In active transport we must transport materials against the concentration gradient. Which of the following is used to power this type of transport?

Accepted Answer

ATP

Answer

ADP

Answer

Phosphates

Answer

MAP

Question 38

Which of the following does NOT require energy?

Accepted Answer

Passive Transport

Answer

Endocytosis

Answer

Exocytosis

Answer

Active Transport

Question 39

If a cell is engulfing (eating) a material from its external environment it is an example of which of the following?

Accepted Answer

Endocytosis

Answer

Exocytosis

Answer

Active transport

Answer

Passive transport

Question 40

What is the difference between a carrier protein and a channel protein?

Accepted Answer

Carrier Proteins require energy, while channel proteins do not.

Answer

Carrier proteins do not require energy, while channel proteins do.

Answer

Channel proteins do not require energy, while channel proteins do.

Answer

None of the above are true.

Review: Membrane Transport and Homeostasis

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