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biology learning outcomes > Marvellous Membranes > Flashcards

Marvellous Membranes Flashcards

0
Q

What does diffusion allow

A

A process that allows substances to enter and exit cells

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1
Q

What are two components of the cell membrane

A

Lipids and proteins

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2
Q

What is diffusion

A

The movement of a substance from an area of high concentration to a area of low concentration

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3
Q

What is osmosis

A

A special type of diffusion. The movement of water from an area of high concentration to an area of low concentration (down a concentration gradient) through a selectively permeable cell membrane

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4
Q

What is the term used to describe a plant cell if it has lost water due to osmosis

A

Plasmolysid

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5
Q

What is the term used to describe a plant cell which has gained water due to osmosis

A

Turgid

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6
Q

What is the term used to describe a animal cell which has burst due to water gain from osmosis

A

Lysis

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7
Q

What is the term used to describe a animal cell if it has lost water due to osmosis

A

Crenated

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8
Q

Give examples of passive transport

A

Diffusion and osmosis

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9
Q

What is passive transport

A

Passive transport is the movement of a substance down a concentration gradient and does not require energy

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10
Q

What is active transport

A

Active transport is the movement of a substance up ( against) a concentration gradient and does require energy

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11
Q

What part of the membrane is involved with the movement of molecules by active transport

A

Proteins

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12
Q

What do phospholipids do

A

Form a bilayer e

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13
Q

Why is the cell membrane described as selectively permeable

A

Because it allows some molecules to pass through it, but not others

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14
Q

What is respiration

A

A series of enzyme controlled reactions during which glucose is borked down to release energy

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15
Q

When energy is released from the breakdown of glucose what is produced?

A

A.T.P ( adenosine Triphosphate)

16
Q

What is ATP

A

A high energy molecule that stores energy

17
Q

What is ATP generated from

A

ADP and Pi

18
Q

What is ATP continuously doing

A

Being built up and broken down

19
Q

What can ATP be used for

A
  • muscle cell contraction
  • cell division
  • protein synthesis
  • transformation of nerve impulses
20
Q

In aerobic respiration how many ATP molecules are released per glucose

21
Q

In anaerobic respiration how many ATP molecules are released per glucose molecule

22
Q

What is the location of aerobic respiration

A

Starts in cytoplasm and ends in cytoplasm

biology learning outcomes (8 decks)

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