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IB SL Biochemistry Review

Total questions: 55

Worksheet time: 1hrs 3mins

Name
Class
Date
1.
Dissolving substance in a solution is called
a)
Solvent
b)
Suspension
c)
buffer
d)
Ion
2.
Type of bond between atoms in which the electrons are shared is called
a)
Covalent bond
b)
Ionic bond
c)
Element
d)
Compound
3.
Attraction between molecules of the same substance is called 
a)
Adhesion
b)
Cohesion
c)
Isotope
d)
Buffer
4.
Force of attraction between different kinds of molecules is called 
a)
Adhesion
b)
Cohesion
c)
Buffer 
d)
Solute
5.

Which molecule is a sugar?

a)
b)
c)
d)
6.

Which molecule is a polysaccharide?

a)

Glucagon

b)

Glucose

c)

Glycerol

d)

Glycogen

7.

Which substance is used for structure in plants?

a)

Amylopectin

b)

Cellulose

c)

Collagen

d)

Starch

8.

What usually distinguishes DNA from RNA?

a)

DNA: Strands are symmetrical RNA: strands are antiparallel

b)

DNA: Contains adenine RNA: contains sytosine

c)

DNA: pentose linked to phosphates RNA: pentose linked to bases

d)

DNA: double stranded RNA; single stranded

9.

Which of the following is the main reason that humans need to include carbohydrates in their diet?

a)

Carbohydrates are broken down in cells for energy.

b)

Carbohydrates combine to form many different proteins.

c)

Carbohydrates act as catalyst to speed up chemical reactions.

d)

Carbohydrates are the building blocks for cell growth and repair.

10.

Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?

a)

Carbohydrate

b)

Lipid

c)

Nucleic Acid

d)

Protein

11.
_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
12.
The organic compounds that have many structural purposes and are used in many processes within the
cell are called ____________________.
a)
Carbohydrates
b)
Lipids
c)
Proteins
d)
Nucleic Acids
13.

Which macromolecule is shown?

a)

lipid

b)

protein

c)

nucleic acid

d)

carbohydrate

14.
What suffix (word ending) is used in the names of most carbohydrates?
a)
-ase
b)
-nic
c)
-ose
d)
-yme
15.

These biomolecules are, in order of appearance...

a)

cis and trans saturated fatty acids

b)

cis and trans unsaturated fatty acids

c)

trans and cis saturated fatty acids

d)

trans and cis unsaturated fatty acids

16.
A water molecule is a ________ molecule, which has one oxygen that has a __________ charge and two hydrogens that have a ___________ charge.
a)
nonpolar, positive, negative
b)
polar, positive, negative
c)
polar, negative, positive
d)
nonpolar, negative, positive
17.
The process of removing water in order to form a bond between monomers is called....
a)
Dehydration Synthesis
b)
Hydrolysis
18.
The following figure is illustrating
a)
Dehydration Synthesis
b)
Hydrolysis
19.
 Makes up the plant's cell wall and is fiber in our diets
a)
Starch
b)
Glycogen 
c)
Cellulose
d)
Chitin
20.

What type of lipid is this?

a)

steroid

b)

cholesterol

c)

phospholipid

d)

Glycerol and 3 fatty acids

21.
What is the name of this molecule?
a)
amino acid
b)
nucleotide
c)
monosaccharide
d)
triglyceride
22.

In an amino acid, a central carbon is bonded to which of the following? Check all that apply.

a)

Amine group (NH2)

b)

Carboxylic acid group (COOH)

c)

Hydrogen atom (H)

d)

Variable side chain (R)

e)

A methane group (CH4)

23.

The way that the protein chain folds is determined by:

a)

the order of the amino acid sequence

b)

the order of the bonds within the amino acid

c)

the level of protein-ness this polypeptide chain had

d)

the different monosaccharides it encounters while folding

24.

This is a structural change in a protein that results in the loss of its biological properties.

a)

Denaturation

b)

Deproteination

c)

Amino acidation

d)

Naturation

25.

What two key conditions can denature a protein? Check all that apply.

a)

temperature

b)

pH

c)

amount of amino acids

d)

number of peptide bonds

26.

At what temperature do most proteins function properly?

a)

about 37°C

b)

about 40°C

c)

about 20°C

d)

it varies

27.

Transcription makes _______ based on a DNA template.

a)

mRNA

b)

tRNA

c)

rRNA

d)

more DNA

28.

Which property of water allows plants to transport water?

a)

Cohesion

b)

Adhesion

c)

Thermal

d)

Solvent

29.

Which of the following is a component of a nucleotide? Click all that apply.

a)

A phosphate group

b)

A 5 carbon sugar

c)

A nitrogenous base

d)

A hydrogen bond

30.

How many hydrogen bonds are shared between adenine and thymine?

a)

1

b)

2

c)

3

d)

4

31.

Purines has have a double ring nitrogenous base, while pyrimidines have __________ ring nitrogenous base?

a)

single

b)

double

c)

triple

d)

quadruple

32.

Which type of RNA is a copy of a gene used to encode a polypeptide?

a)

mRNA

b)

tRNA

c)

rRNA

33.

The nucleotides are aligned with their complementary partners on which strand of DNA?

a)

DNA antisense strand

b)

DNA sense strand

34.
Which RNA bases would pair with TACGAA in transcription? 
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
35.
A triplet of mRNA is called a
a)
codon
b)
anticodon
c)
amino acid
d)
peptide bond
36.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
37.
If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?
a)
30
b)
15
c)
20
d)
60
38.
Use the diagram to answer the question. Between which parts of the molecule must the bonds be broken to form an ADP molecule?
a)
A and B
b)
A and C
c)
B and C
d)
C and D
39.

The BioNinja mnemonic for protein functions, SHITS ME, stands for...

a)

Structure, hormones, immunity, transport, sensation, movement, enzymes

b)

Strength, hormones, immunity, transport, sensation, movement, enzymes

c)

Structure, hormones, identity, transport, sensation, movement, enzymes

d)

Structure, hormones, immunity, transport, sensation, movement, everything

40.

What type of bond is found BETWEEN water molecules?

a)

hydrogen bonds

b)

ionic bonds

c)

nonpolar covalent bonds

d)

polar covalent bonds

41.

Surface tension of water is the cohesive force between water molecule and other molecule.

a)

True

b)

False

42.

Cohesive force between water molecules and adhesive force between water molecules and other molecules enable this phenomenon __________________ occur.

a)

surface tension

b)

capillary action

c)

float on water

d)

photosynthesis

43.
What word describes when water is attracted to other substances?
a)
cohesion
b)
adhesion
c)
capillary action
d)
surface tension
44.
When water molecules stick easily to other water molecules, this is called what?
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule
45.
Water beads up on the surface of a penny because of what property?
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
46.
The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form
a)
less polar
b)
more polar
c)
less dense
d)
more dense
47.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
48.
All organic compounds contain the element
a)
carbon
b)
nitrogen
c)
phosphorus
d)
sulfur
49.
The two strands making up the DNA double helix molecule
a)
contain ribose and deoxyribose in opposite strands.
b)
are held together by hydrogen bonds.
c)
are attached through a phosphate to hold the strands together.
d)
contain uracil but not thymine.
50.
How many atoms can a Carbon atom potentially bind to?
a)
1
b)
2
c)
3
d)
4
51.
What Group does this photo represent?
a)
Carbonyl
b)
Phosphate
c)
Sulfyhydryl
d)
Carboxyl
52.

What functional group is shown?

a)

amino

b)

hydroxyl

c)

carboxyl

d)

sulfhydryl

53.

What functional group is shown?

a)

carboxyl

b)

carbonyl

c)

hydroxyl

d)

amino

54.

What functional group is shown?

a)

carbonyl

b)

hydroxyl

c)

carboxyl

d)

amino

55.
a)

sulfhydryl

b)

hydroxyl

c)

amino

d)

phosphate

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