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Biochemistry
Biochemistry
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Biochemistry review
Flashcards
66 cards
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Questions
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Answers
1
Where chemical digestion of nucleic acids begin
mouth
stomach
large intestines
small intestines
2
DNA is in the shape of:
single circle
double circle
single helix
double helix
3
The polymer of a carbohydrate is
glucose
polysaccharide
polypeptide
amino acid
4
Any change in birth DNA
Exothermic
Mutation
Endothermic
Photosynthesis
5
Label the triglyceride diagram.
A: amino acid. B: glycerol
A: fatty acid. B: glycerol
A: glycerol. B: fatty acid.
A: glycerol. B: amino acid
6
What is the PRIMARY structure of a protein?
Protein-Protein interactions
Individual folds of within the protein
Entire protein
The amino acid sequence
7
The function of a protein is
Long term energy storage
Structure build up
Enzymes
All of those
8
The origin of biomolecules is controversial.
True
False
9
The process of digesting proteins are called
Dehydration
Addition water
Solvolysis
Hydrolysis
10
What does DNA in your cells control?
RNA production
Patterns of growth
Patterns of development
All listed
11
Which of the following fatty acids contain NO carbon-carbon double bonds?
polyunsaturated
unsaturated
monounsaturated
saturated
12
How many aminoacids are represented in proteins...?
100
20
1000
10
13
A protein, 200 amino acids long is broken apart during hydrolysis to 200 indvidual. How?
by removing 199 water molecules
by adding 199 water molecules
by adding 201 water molecules
by removing 199 water molecules
14
Where is DNA found?
Cell nucleus
The brain
The cell membrane
Laced in the bone marrow
15
What are the names of the bases in DNA?
Adenine, Uracil, Cytosine, Guanine
Adenosine, Thymine, Cytosine, Guanine
Cytosine, Guanine, Adenine, Thymine
Adenosine, Thymine, Uracil, Guanine
16
Four elements found in 98% of all biochemicals
hydrogen, sodium, sulfur, oxygen
bismuth, lead, mercury, silver
carbon, hydrogen, phosphorus, gold
carbon, hydrogen, nitrogen, oxygen
17
All the aminoacids are essential
10 are essentials and 10 are not
True
False
The essential are very few
18
Biochemistry focuses on what?
Body's molecular structure
All of the above
Molecular reasons for disease
Advancement in Medicine to fight diseases
19
Which of the following is NOT present in every protein?
Quaternary Structure
Secondary Structure
Tertiary Structure
Primary Structure
20
Which are NOT a Biochemicals?
Proteins
Nucleic acids
Rocks
Lipids and carbohydrates
21
Humans are unable to digest fiber because?
Lack the enzyme necessary to break down cellulose to glucose
Lack the cellular structure that plant cells have
Fiber clogs both the large and small intestine
The body already makes all fiber necessary to sustain life
22
A triglyceride is composed of
Three fatty acids and one glycerol
Three phospolipids and one glycerol
Three glycerols and one phospholipid
Three glycerols and one fatty acid
23
Which fatty acid has multiple double bonds, comes from a plant and is liquid at room temperature?
polyunsaturated
monosaturated
non saturated
saturated
24
Miller & Urey:
tried to recreate early Earth atmosphere
discovered the shape of DNA
developed taxonomy
created endosymbiotic theory
25
What macromolecule is displayed below?
Lipid
Complex carbohydrate
Nucleic Acid
Protein
26
The study of the origin of life is...
Neurobiology
Lithology
Exogeology
Astrobiology
27
I am an enzyme. I help digestion. Enzymes belong to which major organic molecule group?
Nucleic Acid
Protein
Carbohydrate
Lipid
28
Which cell does not carry DNA?
White blood cell
Muscle cell
Red blood cell
Bone cell
29
What are the four categories in biochemicals?
carbohydrates, lipids, proteins, nucleic acids.
carbohydrates, lipids, proteins, hot wheels
carbohydrates, licorice, proteins, nucleic acids.
carbohydrates, lipids, mixtures, nucleic acids.
30
I help rebuild your muscles
Veggies
Protein
Bread
Lipid
31
Why trans fat is unhealthy?
Solid at the human body temperature
Bacteria do not recognize it
It is unsaturated and trans
All choices
32
Repeating subunits in DNA polymer are called
Covalent bonds
Nuclear bonds
Nuleotides
Phosphates
33
The function of DNA is to:
take care of how the mitochondria do their jobs
store hereditary information that is used to make proteins
All of these
hang out in the nucleus and run the chloroplasts
34
Which are the major biochemicals?
Carbohydrates and lipids
Nucleic acids
Proteins
All of those
35
Miller Urey Experiment demonstrated that the four natural organic molecules could have form from
simple inorganic molecule, abiogenesis
complex organic molecules
complex inorganic molecules
simple organic molecules
36
I make translucent spots on your lunch bag.
Nucleic Acid
Carbohydrate
Lipid
Protein
37
Who believes that humans have a higher status than animals?
All of the listed
All religions
All societies
All sciences
38
Compare each other. What is NOT correct in biochemistry?
Mechanism for building proteins is identical in organisms
All living organisms produce the same proteins.
DNA and RNA are the genetic codes for all life.
None
39
What is a triglyceride a combination of?
2 Phosphates + 1 fatty acid
1 Phosphate + 2 fatty acids
1 Glycerol + 3 fatty acids
3 Glycerols + 1 fatty acid
40
This triglyceride is made of two types of molecules. These are:
Glycerol + 2 amino acids
Glycerol + 3 saturated fatty acids
Glycerol + 3 amino acids
Glycerol + 3 unsaturated fatty acids
41
Plants come from the
Soil
The Sun
Ground
Air and water
42
Miller and Urey zapped water and early gases with _________
music
sound waves
electricity
explosives
43
I am a source of quick energy!
Nucleic Acid
Protein
Carbohydrate
Lipid
44
Each turn of DNA helix contain ..... bases
8
10
12
4
45
The major triglyceride storage sites?
Adipose tissue and nerve tissue
Adipose tissue and cardiac muscle
Adipose tissue and liver tissue
Adipose tissue and skeletal muscle
46
I am sweet. I am the biomolecule shaped like a ring contain Carbon, Hydrogen and Oxygen only, I am
Nucleic Acid
Protein
Lipid
Glucose
47
Enzyme responsible for the Digestion of protein is
Amylase
Bile
Pepsin
Lipase
48
What is the chemical bond in triglyceride?
Ester bond
Hydrogen bond
Ionic bond
Disulphide bridge
49
Natural DNA exists only as one isomer?
single circle
false. single helix, rotating in two directions
double circle
true, double helix, rotating in one direction clockwise
50
A
peptide bond
forms when two aminoacids bond together
True
False
51
I am sweet and soluble in water because I make...with water
Hydrogen bonds
London bonds
Ionic bonds
Dipole bonds
52
The sides of a DNA molecule contain
RNA
deoxyribose and phosphate
nitrogen bases and phosphates
nitrogen bases and deoxyribose
53
Plants store carbohydrates in the form of
cellulose
lipids
glycogen
water
54
Why the Miller-Urey theory is widely accepted today?
Synthesizing organic molecules from mixture of gases in lab
No other alternative hypotheses have been introduced
Organic molecules are present today in extremely high #s
Amino acids spontaneously form from molecules in the atmosph
55
The second part of ATP is a sugar. Based on our biochemistry unit, which piece is the sugar in the diagram
the whole thing
ribose
adenine
phosphate groups
56
Define Biochemistry
study of jewels in a cave.
study looking at animals to study their habitat.
study of finding where all reserach lives
study of the chemical substances & processes occuring in living organisms
57
I carry genetic information from your parents.
Deoxyribonucleic Acid
Deoxyribosenuclear Acid
Ribosenucleic Acid
Ribosenuclear Acid
58
I am sweet and soluble in water. I have
Phosphate
Sulfur
Amino groups
Hydroxyl groups
59
Which type of fat does this diagram represent?
unsaturated fat
saturated fat
60
Where does the digestion of sugars occur?
mouth only
large intestine only
stomach only
starts in the mouth and continues in small intestine
61
The digestion of fats occurs mainly in the
mouth through chewing
small intestine through micellization
stomach through peristalsis
large intestine through oxidation
62
Which of the following things contain ALL the essential aminoacids?
Sacharose
Egg
Soy
Milk
63
Essential amino acids are those that ...
are made by the body, complemented with food
are not made by the body, we need to get them from food
64
In polypeptide chains the amino acids are held together by a
peptide bond
hydrogen bond
ionic bond
string
65
Miller and Urey
Cut off Mice tails
Discovered DNA
Disproved spontaneous generation
tested the theory of chemical evolution
66
Biochemicals are polymers. A Monomer to Polymer transformation and bonds form through
dehydration synthesis
polymerization addition reaction
photosynthesis
hydrolysis
