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Biology > Ch 4 > Flashcards

Ch 4 Flashcards

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0
Q

Phospholipid bilayer

A

Hydrophobic tails face inwards hydrophilic heads face surface

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1
Q

Fluid-mosaic model

A

Part of the membrane structure that makes it flexible and molecules move

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2
Q

Integral proteins

A

Embedded

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3
Q

Peripheral protein

A

Inner surface

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4
Q

Membrane structure

A

Fluid Mosaic model
Phospholipid bilayer
Proteins
Glycoproteins, glycolipids, cholesterol

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5
Q

Lipid molecules

A

Double layer proteins transport and move

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6
Q

Channel proteins

A

From channels substances can move across membrane anything that can fit will pass

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7
Q

Receptor proteins

A

Bind to substances and environment and trigger cell responses
Shaped in such a way that specific molecules combined

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8
Q

Carrier proteins

A

Transport a specific substance across the cell membrane

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9
Q

Enzymes

A

Catalyze chemical reactions for cell metabolism

Break molecules apart and join them together and cause chemical reactions

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10
Q

Cell recognition proteins

A

The MHC or major histocompatibility complex glycoproteins are different for each person
Cells with foreign MHC glycoproteins are attacked by blood cells responsible for immunity

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11
Q

Enzymatic proteins

A

Capitalize a specific reaction

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12
Q

Glycoprotein

A

Major histocompatibility complex Glycoproteins are different for each person

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13
Q

Carbon chains

A

Found an outer surface of the cell recognition protein
Form a sugarcoat glycocalyx or glycoproteins
Immune responses

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14
Q

What produces individual fingerprints

A

Diversity of carbohydrate chain

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15
Q

Membrane consist of what

A

Fluid dynamic phospholipid bilayer

16
Q

What forms a mosaic pattern?

What do mosaic patterns do?

A

Embedded proteins

Provide structural integrity and perform many functions

17
Q

What projects from outer surface

What is equalLibrium

A

The hydrate chains

Molecules diffuse equally in a given space

18
Q

What is permeability

What is permeable

A

Allowing some substances to pass through freely while others do not

The plasma membrane

19
Q

What is passive transport

What does passive transport require

A

Movement from high concentration to low concentration

No energy…required diffusion and Kinetic Energy

20
Q

Felicitated diffusion is like…

A

Passive transport.

21
Q

Where does water always moves

Smooth ER has no what

What is active transport

A

Hypertonic solution

Ribosomes

Transports molecules from low concentration to high

22
Q

What does active transport require

What is exocytosis

A

Carrier proteins, ATP, and a concentration gradient

Vesicle mediated transport (transports sell products and waste out of the soap by vesicle formation) coming from goilgi apparatus packaged in vesicle

23
Q

What is Pinocytosis

What is phagocytosis

A

Liquid or small particle cell drinking

Large particles cell eating
for example white blood cells eating a bacteria

24
Q

What are vesicles do

What have a hard time moving through cell membrane

A

Containers that fuse with outer membrane

Charge molecules and ions and macromolecules

25
Q

What is diffusion

What drives diffusion

What can diffuse freely across cell membrane

A

Movement of Molecules from an area of high concentration to an area of low concentration

Kinetic Energy
Lipid soluble molecules gases and small water soluble molecules

26
Q

What is osmosis

What is Osmotic pressure

A

Diffusion of water across a semi permeable membrane. Due to a number of non-diffusible particles in a solution

Force that causes water to move in a direction

27
Q

Hypotonic solutions

Hypertonic solutions

A

Solution that contains less particles then some other solution cause cell to swell or burst

More particles than other solutions causes cell to shrink or crenate

28
Q

Isotonic solution

What is salute

A

Solution that contains equal amounts of solute compared to other solutions and have no change

Particles

29
Q

Carrier proteins are

What is felicitated transport

Active transport

A

Specific for the molecules they transport

Passive mechanism transport from high to low concentration
Transports against concentration gradient

30
Q

Passive transport

The sodium potassium pump

Na+

A

No carrier protein

Involved in active transport of sodium potassium

Has hard time getting through carrier proteins

31
Q

What is exocytosis

A

Vesicle containing sell products fuse with plasma membrane

Products are released and vesicle membrane become a part of the plasma membrane

32
Q

What is endocytosis

What does invaginate mean

A

An area of the cell membrane is turned inside out and surrounds a substance than pinches off in the form of a vesicle

Turn inside out

33
Q

Receptor

A

Mediated specific type of Pinocytosis which occurs in response to a receptor simulation

34
Q

All cells are not

Membrane phospholipids can

Lysis

A

Motile

Drift into plasma membrane

Disintegration of a cell by rupture of it cell wall or membrane

35
Q

Hypotonic animal cells will

Chloroplast helps the process of

What is responsible for membrane transport

A

Lyse

Photosynthesis

Proteins

36
Q

Cyanide

A

Salt

Biology (21 decks)

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