Chapter 2 Flashcards

1
Q

Merging property

A

Membranes are interchangeable with each other

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2
Q

Extracellular matrix

A

proteins outside of the cell

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3
Q

What is the ECM for

A

sensing and communication

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4
Q

Hydrophilic proteins must travel in vesicles

A

False

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5
Q

Lyposome

A

Equivalent of vesicle

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6
Q

How do senses work

A

through proteins (receptors)

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7
Q

Phage

A

A cell that does a lot of phagocytosis
Ex: WBC

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8
Q

Weak bonds permit what

A

Interactions of biomolecules to allow life processes

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9
Q

1 Angstrom

A

Distance of a covalent bond with an H atom
0.1 nm

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10
Q

Brownian motion

A

Movement powered by random fluxes in enviro energy

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11
Q

Thermal movement

A

Constant movement causes disorder and energy loss

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12
Q

More disordered = Less likely to react

A

False

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13
Q

Why do most biochemical reactions happen in aqueous solution

A

Water is stable and polar

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14
Q

Hydrophilicity is the same as being polar

A

True

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15
Q

Do hydrocarbons have a partial charge

A

No, so they are hydrophobic

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16
Q

If there is an N or O in a functional group of a hydrocarbon the molecule will remain non-polar

A

False

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17
Q

What type of strong bond can water create

A

Hydrogen bonds

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18
Q

How many H bonds can water make

A

4

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19
Q

What is an H bond donor

A

A molecule that gives up its H to a lone pair

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20
Q

Cohesion

A

Self connection

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21
Q

Ubiquitous solvent

A

Water
Dissolves many solutes

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22
Q

Detergent

A

Acts as a bridge between hydrophobics and hydrophilics

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23
Q

Weak interactions allow for

A

reversable reactions

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24
Q

Electrostatic interactions happen between

A

charged molecules

25
Q

Other names for electrostatic interactions

A

Ionic bonds
Salt Bridges

26
Q

Coulombs law

A

Energy of electrostatic interaction

27
Q

Water has what effect on electrostatic interactions

A

It weakens them because it has a higher dielectric constant

28
Q

Crystal latice

A

the stable form of a solid substance

29
Q

What does water do to a crystal latice

A

it creates bonds with the ions involved using its positive and negative sides to disovle the latice

30
Q

Does water stabilize or destabilize an ionic compound

A

It destabilizes the latice but stabilizes the ions

31
Q

What does heating do to a substance

A

Increase the movement of particles

32
Q

What does increased particle movement mean

A

Higher entropy

33
Q

What does higher entropy mean

A

More dissorder

34
Q

What does more disorder mean

A

Weaker bonds/atom interactions

35
Q

What are acids

A

Compounds that lose a proton during a reaction

36
Q

What are bases

A

Compounds that receive a proton during a reaction

37
Q

What is a conjugate acid

A

A base that has gained a proton

38
Q

What is a conjugate base

A

an acid that has lost a proton

39
Q

How does water disrupt hydrogen bonds

A

by replacing the existing compounds to create new H bonds

40
Q

Van der Waals interactions

A

Asymmetry of a molecule induces neighboring asymmetry

41
Q

What does Asymmetry do to molecules

A

Create a positive and negative side to the molecule that attract each other

42
Q

What do Van der Waals forces rely on

A

Distance between molecules

43
Q

What is the ideal distance for van der waals forces

A

3 Angstrom

44
Q

The lowest energy gives rise to

A

the most stable molecule positioning

45
Q

What does the lowest energy have to do with distance

A

The lowest energy is at the ideal distance to create a stable bond

46
Q

What does SA have to do with Van der Waals interactions

A

More SA = more ability for interactions = more strong bonding

47
Q

What are some key points about DNA base pairing

A

A with T (2 bonds)
C with G (3 bonds)

48
Q

When a substance is dissolved the solvent has high entropy

A

False
The solute has high entropy and the solvent has low entropy

49
Q

When a substance is precipitated it has low entropy

A

True
The solvent has high entropy

50
Q

The strongest IM force

A

Electrostatic

51
Q

The 2nd strongest IM force

A

H bonding

52
Q

The weakest IM force

A

Van der Waals

53
Q

Why does the hydrophobic effect take place

A

The entropy of water increases when a hydrophobic substance clumps

54
Q

When something dissolves in water water gains freedom

A

False

55
Q

Bioassembling

A

The process of molecules clotting (Hydrophobic effect)

56
Q

Polar molecules force water to have less freedom

A

False, they give more freedom which is what causes hydrophobic molecules to internalize

57
Q

What are salt bridges for in hydrophobic interaction

A

They take place of hydrogen bonds after folding has occurred
STABALIZERS

58
Q
A