Transport/energy Flashcards

1
Q

Maintains homeostasis
Allows nutrients in
Removing waste

A

Cell membrane

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2
Q

Phospholipids

A

Are arranged in bilayer

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3
Q

Integral protein

A

Go whole way through bilayer

Transmembrane protein

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4
Q

Peripheral protein

A

Loosely attached to membrane

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5
Q

Cholesterol

A

Helps stabilize membrane at warmer temps and keep membrane fluid

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6
Q

Passive transport

A

Movement of molecules down the concentration gradient with no energy

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7
Q

Simple diffusion

A

Movement from high to low concentration
No atp
No protein

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8
Q

Tonicity

A

Ability of surrounding solution to cause a cell to gain or lose water

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9
Q

Isotonic

A

Solute concentration of a cell and its environment are equal

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10
Q

Hypotonic

A

Solute concentration lower in the cell
Water moves in cell
Swells

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11
Q

Hypertonic

A

Solute concentration greater in the cell
Water moves or if cell
Shrinks

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12
Q

Facilitated diffusion

A

High to love concentration
No atp
Transport protein required

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13
Q

Aquaporins

A

Integral. Protein channels that diffuses water very rapidly

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14
Q

Active transport

A

Moves against concentration gradient

Needs energy

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15
Q

Ion pumps

A

Low to high concentration
ATP required
Transport proteins required

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16
Q

Bulk transport

A

Transporting molecules in or out within a vesicle that fuses within the cell membrane

17
Q

Exocytosis

A

Exports bulky molecules such as proteins and polysaccharides

18
Q

Endocytosis

A

Important substances useful to the liveliness of the cell

19
Q

Phagocytosis

A

Engulfment of particle by wrapping cell membrane around it forming a vacuole
Solids

20
Q

Pinocytosis

A

Fluids are taken into small vesicles

Liquids

21
Q

Receptor mediated

A

Uses receptors to interact with a specific protein to initiate a vesicle formation

22
Q

Chemical reactions used for

A

Cell maintenance
Manufacturing cell parts
Cell replication

23
Q

Energy

A

To cause change or to perform work

24
Q

Kinetic energy

A

Energy of motion

25
Potential energy
Stored energy
26
Exergonic reactions
Release energy
27
Endergonic reactions
Require input of energy
28
Metabolism
Total of an organisms chemical reactions
29
Enzyme
Organic catalyst to speed up a chemical reaction
30
Substrate
Reactants in an enzymatic reaction that are broken or put together
31
Active site
Location on an enzyme where the substrate is modified in the new product forms
32
Factors affecting enzyme speed
``` Substrate concentration Temperature pH Cofactors Inhibition ```
33
Non competitive inhibition
Inhibitor binds to the enzyme at a location other than the active site
34
Competitive inhibition
Inhibitor and the substrate compete for the same active site