Active and Passive Transport Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

Is diffusion active or passive

A

passive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Are protein pumps active or passive

A

active

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Is facilitated diffusion active or passive

A

passive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Is Endocytosis/ Exocytosis active or passive

A

active

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Is Osmosis active or passive

A

passive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Is osmotic pressure active or passive

A

passive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Does passive transport require energy?

A

little to none

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which way in passive transport does the substance move along the concentration gradient?

A

down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

In passive transport does a substance move from high to low concentration?

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Does active transport require energy

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In active transport does a substance move from low to high concentration?

A

yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What type of energy does passive transport use?

A

Adenosine triphosphate (ATP)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which way in active transport does the substance move along the concentration gradient?

A

against

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is diffusion

A

the process by which molecules move from a position of high concentration to a position of lower concentration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What physical variables is diffusion heavily dependent on

A

temperature, size of the molecule, and type of medium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is facilitated diffusion?

A

the passive movement of molecules along the concentration gradient

15
Q

In facilitated diffusion is there specific and nonspecific channels

A

yes

16
Q

In facilitated diffusion do protein channels act like tunnels

A

yes

17
Q

is energy required in facilitated diffusion

A

no

18
Q

What is osmosis?

A

movement of water across a selectively permeable membrane

19
Q

In osmosis what is the special protein channels

A

aquaporins

20
Q

When water moves does it require cellular energy

A

no

21
Q

which way does water move down the concentration gradient

A

high to low

22
Q

What is osmotic pressure

A

the pressure that must be applied to prevent osmotic movement across a selectively permeable membrane

23
Q

What is hypertonic

A

outside of the cell has a higher concentration of solutes; less H2O

24
Q

What is Isotonic

A

equal concentration of solute inside and outside of the cell

25
Q

What is active transport

A

energy from the cell is needed to move particles from an area of lower concentration to one of higher concentration

25
Q

What is Hypotonic

A

outside of the cell has a lower concentration of solutes; more H2O

26
Q

Where do small molecules and ions move through

A

Protein Pumps

27
Q

In active transport, what does chemical energy result in

A

physical changes in the pump’s protein

28
Q

Does a lot of energy go into running a protein pump

A

yes

29
Q

In active transport, how do larger molecules/ items move

A

via endocytosis and exocytosis

30
Q

What is endocytosis

A

moving into the cell

31
Q

what is an example of endocytosis

A

white blood cells ‘eat’ damaged cells

32
Q

What is exocytosis

A

moving out of the cell

33
Q

what is an example of exocytosis

A

release of waste products

34
Q

What is lysosomal digestion

A

an in and out process