Movement in and out of cells (2.1-2.2)

studied byStudied by 1 person
5.0(1)
Get a hint
Hint

Respiration supplies energy

1 / 22

23 Terms

1

Respiration supplies energy

________ to drive carrier protein across membrane.

New cards
2

Molecules

________ and ions in liquids or a gas move continuously and randomly and so they change direction as they bump into eachother.

New cards
3

Gas exchange

________ in the alveoli of lungs takes place by diffusion.

New cards
4

Temprature on diffusion

________: An increase in temperature will increase the rate of diffusion; Molecules gain kinetic energy and so will move faster (faster diffusion)

New cards
5

Osmosis

________: The net movement of water molecules from a solution of high water potential to a solution of low water potential (down a water potential gradient) across a partially permeable.

New cards
6

Diffusion

________: the net movement of molecules within a gas or liquid from a region of high concentration to a region of low concentration (down a concentration gradient) across a semi permeable membrane, until equilibrium is reached.

New cards
7

solution of low water

When it is immersed in a(n) ________ potential: the cell loses water.

New cards
8

Concentration gradient in diffusion

________: The higher the difference in concentrations the faster the rate of diffusion.

New cards
9

Active transport

________: the movement of molecules from a region of LOWER concentration to a region of HIGHER concentration (against a concentration gradient)

New cards
10

plant cell

When a(n) ________ is placed in a solution of low water potential: water leaves the the cell.

New cards
11

Gas exchange

________ through the stomata of the leaves occurs by diffusion.

New cards
12

Diffusion

the net movement of molecules within a gas or liquid from a region of high concentration to a region of low concentration (down a concentration gradient) across a semi permeable membrane, until equilibrium is reached

New cards
13

Concentration gradient

The higher the difference in concentrations the faster the rate of diffusion

New cards
14

Temprature

An increase in temperature will increase the rate of diffusion; Molecules gain kinetic energy and so will move faster (faster diffusion)

New cards
15

Surface area of the membrane

Larger surface area of the membrane the higher the rate of diffusion

New cards
16

Distance over which diffusing molecules travel

Shorter the distances faster the rate of diffusion

New cards
17

Size of diffusing molecules

Smaller/lighter molecules will move faster and so will have a higher rate of diffusion

New cards
18

Osmosis

The net movement of water molecules from a solution of high water potential to a solution of low water potential (down a water potential gradient) across a partially permeable

New cards
19

When a plant cell is placed in a solution of low water potential

water leaves the the cell

New cards
20

When it is placed in a solution of high water potential

water enters the cell

New cards
21

When it is immersed in a solution of low water potential

the cell loses water

New cards
22

When it is immersed in a solution of high water potential

the cell takes in water

New cards
23

Active transport

the movement of molecules from a region of LOWER concentration to a region of HIGHER concentration (against a concentration gradient)

New cards

Explore top notes

note Note
studied byStudied by 18 people
... ago
5.0(1)
note Note
studied byStudied by 1712 people
... ago
4.7(13)
note Note
studied byStudied by 3 people
... ago
5.0(1)
note Note
studied byStudied by 26 people
... ago
5.0(1)
note Note
studied byStudied by 24 people
... ago
5.0(1)
note Note
studied byStudied by 13 people
... ago
5.0(1)
note Note
studied byStudied by 12 people
... ago
5.0(1)
note Note
studied byStudied by 10 people
... ago
5.0(1)

Explore top flashcards

flashcards Flashcard (22)
studied byStudied by 12 people
... ago
5.0(1)
flashcards Flashcard (72)
studied byStudied by 12 people
... ago
5.0(1)
flashcards Flashcard (94)
studied byStudied by 13 people
... ago
4.0(1)
flashcards Flashcard (62)
studied byStudied by 1 person
... ago
5.0(1)
flashcards Flashcard (105)
studied byStudied by 28 people
... ago
5.0(1)
flashcards Flashcard (101)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (21)
studied byStudied by 26 people
... ago
5.0(1)
flashcards Flashcard (32)
studied byStudied by 21 people
... ago
5.0(1)
robot