Last section Flashcards

(43 cards)

1
Q

What is the general structure of carbohydrates?

A

(CH2O)n

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2
Q

What do mono saccharides usually contain?

A

aldehyde group/ ketone group

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3
Q

True or false, glucose and ATP are mono saccharides

A

True

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4
Q

The general form of mono saccharides is?

A

Cyclic

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5
Q

Carbohydrates are attached to proteins are called ?

A

Glycoproteins

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6
Q

What are long chains of hydrocarbons with a polar carboxyl group at one end?

A

Fatty acids

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7
Q

What are fatty acids in which the fatty acid chains are joined to glycerol via ester linkages?

A

Triacylglcerols

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8
Q

What lipids have a polar head group and a hydrophobic tail?

A

Phospholipids

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9
Q

What are polycyclic hydrocarbons that form signaling molecules, components of membranes (cholesterol).

A

Steroids

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10
Q

Richer source of fuel, fatty acids or carbs?

A

fatty acids

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11
Q

Difference between saturated and unsaturated fatty acids?

A

double bonds

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12
Q

Glycolipids have blank head and blank tail

A

polar/hydrophobic

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13
Q

Steroids have a tetracyclic structure

A

true

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14
Q

what forces hold lipid bilayers together?

A

hydrophobic effects

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15
Q

What is Km

A

concentration for half maximal binding of substrate

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16
Q

What stops lipids from flipping to different sides of the lipid bi layer?

A

polar head

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17
Q

protein>sugar

A

glycoproteins

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18
Q

sugar>protein

A

proteoglycans

19
Q

most common structure to cross lipid bi layer

20
Q

proteins that pass through lipid bi layer

A

integral membrane

21
Q

proteins binding to integral membrane proteins

A

peripheral membrane

22
Q

proteins are anchored to the plasma membrane by virtue of their attachment to a fatty acid lipid that is embedded in the plasma membrane

A

membrane anchored proteins

23
Q

Peripheral membrane proteins can be washed off of membranes with conditions like high salt

24
Q

Integral membrane proteins can be removed with high salts

25
Bind the transported molecule and undergo a conformational change that transports the molecule to the other side.
Transporters
26
Hydrophilic channel through the membrane. Do not bind the transported molecule.
Channels
27
Interior of a cell has a net positive charge true of false
false
28
two main kinds of proteins that carry out active transport
coupled transporter, ATP pump
29
ion channel are not selective for which ions pass through
false
30
two ways ion channels are selective
selectivity filter, voltage gated
31
break down food molecules, oxidation
catabolism
32
use energy and small molecules to drive synthesis of other molecules
anabolism
33
most stable form of carbon
CO2
34
Cells obtain energy from sugars and other organic molecules by allowing their carbon and hydrogen atoms to combine with oxygen to produce CO2 and H2O
aerobic respiration
35
3 energy carrier proteins
ATP, NADH,NADPH
36
Unfavorable metabolic reactions are driven by coupling them to ....
ATP hydrolysis
37
In ATP hydrolysis, making a high energy intermediate that can react directly with A-H in an energetically favorable reaction is called...
phosphoryl transfer reaction
38
What do NADH and NADPH carry?
high energy electrons
39
NAD+ and NADH+ pick up how many electrons and protons?
2 electron 1 proton
40
NADPH readily gives up...
hydride ion
41
NADPH and NADP are part of what pathway?
reducing agent in anabolic pathways
42
NAD+ and NADH+ are part of what pathway?
oxidizing agent in catabolic pathways
43
A coenzyme A carries a readily transferable acetyl group in what kind of linkage?
thiolester