what does an allosteric inhibitor do

binds to alternative site changing the shape of active site

enzyme changes shape slightly as the substrate binds to it

what is the difference between a saturated and unsaturated fat

saturated fats have more hydrogen atoms

Solutions do not decompose at room temperature because

the activation energy cant be surmounted at room temp

Why are phospholipids important in cells

they are the main component of the cell membrane

what is the only way a mammal can get energy from cellulose?

symbiotic relationship w/ a bacteria that makes enzyme

How are most macromolecules created

small subunits put together by dehydration synthesis

are nonpolar and do not mix with water

what would not alter the shape of an enzyme

increase in substrate concnetration

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Duplicate of Macro molecules

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Biochem unit

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Questions 49

Answers

1
a large protein made of Serine(hydrophilic) and leucine (phobic) where would they be in H2O sol
Both inside
L inside, S outside
S inside, L outside
Both outside
2
When a protein is denatured what structure is least affected
Primary
Tertiary
Secondary
Quatenary
3
How do plants store energy
proteins
glycogen
cellulose
starch
4
which will affect enzyme activity
concentration does not change
pH remains unchanged
constant temperature
active site being blocked
5
what does an allosteric inhibitor do
binds to the active site of the enzyme
changes shape of active site by blocking the active site
Lowers temperature at active site
binds to alternative site changing the shape of active site
6
3D shape of a protein is because of its ________ structure
Secondary
Quatenary
Tertiary
Primary
7
Induced fit means
the active site can adjust to an enzyme
the active site is almost a perfect fit to the substrate
enzyme changes shape slightly as the substrate binds to it
the substrate causes the active site to change shape
8
which animal has the slowest metabolism
frogs
hummingbirds
cows
owls
9
Which curve shows a yeast that loves cooler temperature
curve 3
curve 1
curve 4
curve 2
10
An amino group is placed in water it acts like a/an
alcohol
base
acid
Acid and base
11
Organic Chemistry is based on what element and what kind of bond does it make with elements
Carbon, hydrogen
Hydrogen , Covalent
Carbon, Covalent
Oxygen, Ionic
12
property that makes a substance attracted to water
hydroliphic
phospholipid
hydrophilic
hydrophobic
13
Catabolism is the
Breaking down a molecule
Building of a molecule
Performing dehydration synthesis
Adding monomers to the end of a molecule
14
what is the difference between a saturated and unsaturated fat
saturated fats have more hydrogen atoms
saturated fats have more double bonds
saturated fats are liquids at room temperature
saturated fats dont clot as well
15
An amino side group contains what element
P
N
C
H
16
β hemoglobin and α hemoglobin are altered which protein structure is affected
quatenary
tertiary
primary
secondary
17
Which represents an enzyme in the human stomach
curve 5
curve 1
curve 4
curve 2
18
What is a peptide bond formed between
carbohydrates
substrate and enzyme
fatty acids
amino acids
19
Enzymes
decrease activation energy
change direction of the reaction
Increase activation energy
lower free energy of the reaction
20
which of the following is a polymer
cellulose
triglycerol
glucose
galactose
21
What alters the shape of a protein
Change temp
Change salt conc
All of the above
Change pH
22
pH affects enzymes by
the H ions absorb too much energy
changes shape of active site
low pH denatures all enzymes
because they dont function well in low pH
23
Solutions do not decompose at room temperature because
Solutions dont degrade
It releases too much energy
Solutions in water can not be hydrolized
the activation energy cant be surmounted at room temp
24
What is a disaccahride made of
Amino acid and a monosaccharide
2 monosaccharides
1 monosacharide and a polymer
3 carbohydrates
25
polypeptides are made of
Chain of amino acids
A helix, B pleated sheet
3D shape
several tertiary structures
26
glucose and galactose are examples of?
polymers
monosaccharides
amino acids
polypeptides
27
Where on an enzyme does the substrate connect
reactivity location
active site
alosteric site
left side
28
what is the optimum temperature for curve 3
85 C
38 C
68 C
78C
29
which process breaks down macromolecules and requires H2O and releases energy
dehydration synthesis
hydrolysis
denaturing
Anabolism
30
which organic molecule group makes up cell membranes
proteins
Nucleic acids
lipids
carbohydrates
31
Why are phospholipids important in cells
They make up the cytoplasm
they are the main component of the cell membrane
they make the rough ER
They make the nucleus
32
what is the only way a mammal can get energy from cellulose?
regurgitating and re eating it
symbiotic relationship w/ a bacteria that makes enzyme
They can't get energy from cellulose
creating an enzyme in a special part of their digestive
33
how does a change amino acid far from the active site alter the enzyme's substrate specificity
change enzyme stability
changes optimum pH
changes shape of protein
change its location in the cell
34
Hydrolysis______________ water
turns into h2o2
releases
does nothing with
consumes
35
Does ethanol which has a OH dissolve in H2O
No
Yes
It might
Why are you asking me
36
How are most macromolecules created
small subunits put together by dehydration synthesis
Polymers and monomers put together by hydrolysis
small subunits put together by hydrolysis
37
what organic molecule doesnt have polymers
carbohydrates
proteins
lipids
nucleic acids
38
Enzymes are
can change shape to accommodate different substrates
specific to the substrate
are used up in the experiment
made of carbohydrates
39
If you add three molecules together using Dehy synthesis how many water molecules are created?
4
1
2
3
40
when the Potential energy of the products is less than the reactants
exergonic reaction
endergonic reaction
41
the amino acid sequence would be considered what structure of a protein
Primary
Quatenary
Tertiary
Secondary
42
Anabolic pathways
release energy to create monomers
do not depend on enzymes
need energy to build polymers
control enzyme activity
43
Function of Carbs is
membrane construction
Lipid storage
Genetic material
Energy storage
44
Enzyme inhibitors can be
cooperation is inhibition by a competitive inhibitor
reversible and irreversible
noncompetitive doesnt change shape of active site
competitive inhibitor binds to allosteric site
45
phospholipid tails
mix easily with water because of their polarity
are nonpolar and do not mix with water
hydrolyze into their monomers
dissolve acidic compoiunds
46
What is the building block of a carbohydrate called?
Monoglutimate
Monosaccharide
Polysaccharide
Mononucleate
47
What is this
Fatty acid
maltate
steroid
pentose sugar
48
What is the building block of a carbohydrate called?
Monosaccharide
Polysaccharide
Mononucleate
Monoglutimate
49
what would not alter the shape of an enzyme
change in temperature
change in salinity
increase in substrate concnetration
change in pH

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