Why is anaerobic respiration dangerous?

The products are harmful, It doesn't make enough ATP

The purpose of the light dependent stage of photosynthesis is to:

Split water molecules into hydrogen ions and oxygen

What is this: glucose --> 2 pyruvate + 2ATP

net production of two molecules of ATP in glycolysis

What is the equation of aerobic respiration?

C6H12O6 + 6O2 --> 6CO2 + 6H2O + 38ATP

The series of reactions, catalysed by enzymes, which occur in organisms.

James Watson and Francis Crick...

Made models to figure out DNA’s shape

All amino acids are made up of

carbon, nitrogen, oxygen, sulfur

The purpose of aerobic cellular respiration is to:

Break down glucose to form pyruvate and ATP

Hydrogen bond between water molecules holding them together.

What is molecular biology?

It explains the roles of chemical substances involved in life processes.

Transcription results in...

copying of one section of the DNA

What are the four sub-units of DNA?

Thymine, Adenine, Cytosine, Guanine

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Biology SL - Molecular Biology

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Topics 2.1 -2.9

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Questions 100

Answers

1
What is this molecule?
Carbohydrate
Lipid
Steroid
Protein
2
What carbohydrate is this?
Disaccharide
Polysaccharide
Monosaccharide
3
The enzymes used in industry are usually...
immobilized
mobilized
explosive
4
Why is anaerobic respiration dangerous?
The products are harmful
The products do nothing
It makes no ATP
It doesn't make enough ATP
5
Monomers are small subunits.
True
False
6
What are the two products of aerobic respiration?
Carbon dioxide + water
carbon dioxide + Oxygen
Carbon dioxide + glucose
Glucose + oxygen
7
The purpose of the light dependent stage of photosynthesis is to:
Absorb light in the stroma of chloroplasts
Combine hydrogen ions with carbon dioxide to form glucose
Abosrb light in the grana of chloroplasts
Split water molecules into hydrogen ions and oxygen
8
What is this: glucose --> 2 pyruvate + 2ATP
net production of two molecules of ATP in glycolysis
net production of two molecules of ATP in glycogen
9
Which enzyme links the new nucleotides into place in DNA Replication?
DNA Polymerase
Helicase
RNA Polymerase
10
What is the equation of aerobic respiration?
C6H12O6 + 6O2 --> 6CO2 + 6H2O + 41ATP
C6H12O6 + 6CO2 --> 6O2 + 6H2O + 40ATP
H2O + 6O2 --> 6CO2 + C6H12O6 + 41 ATP
C6H12O6 + 6O2 --> 6CO2 + 6H2O + 38ATP
11
In water molecule, oxygen is positively charged.
True
False
12
DNA stands for:
Dioxyribosenucleic acid
Deoxyribonucleic acid
Dioxyribonucleic acid
Deoxyribosenucleic acid
13
Amino acids are synthesized by...
mitochondrium
ribosomes
helicase
polar
14
Translation is carried out by ribosomes.
False
True
15
How many ATP molecules are produced by aerobic respiration?
32
36
38
40
16
Sucrose is...
Genshin Impact Character :D
Disaccharide
Monosaccharide
Polysaccharide
17
What is metabolism?
The series of hydrolysis reactions.
The series of reactions, catalysed by enzymes, which occur in organisms.
Condensation reaction.
The series of reactions.
18
The optimum temperature for the action of this enzyme is approximately
50 degrees Celsius
41 degrees Celsius
25 degrees Celsius
32 degrees Celsius
19
Genes contain triplets.
False
True
20
Condensation is an example of...
Anabolic Reaction
Catabolic Reaction
21
James Watson and Francis Crick...
Bred pea plants to study heredity
Took X-ray picture of DNA
Discovered that genes are in chromosomes
Made models to figure out DNA’s shape
22
What are the products of anaerobic respiration?
Nitric Acid
Ethanol
Beer
Lactic Acid
23
All amino acids are made up of
polymer, monomer
water, carbon hydrogen, air
carbon, nitrogen, oxygen, sulfur
carbohydrates, amino acids
24
The purpose of aerobic cellular respiration is to:
Break down glucose to form pyruvate and ADP
Break down glucose without oxygen to form lactic acid and ATP
Break down glucose without oxygen to form lactic acid and ADP
Break down glucose to form pyruvate and ATP
25
What carbohydrate is this?
Polysaccharide
Monosaccharide
Disaccharide
26
What is cohesion?
My attraction to water. :D
Hydrogen bond between water molecules holding them together.
Convalent bond in water molecules.
An attraction between water molecules and different molecules.
27
DNA is ____ stranded, while RNA is ____ stranded.
triple; double
single; double
double; double
double; single
28
What reaction is this?
Anabolic
Catabolic
29
What are key properties of lipids?
DEnsity and solubility
All of the above
Energy content
Insulation
30
Which enzyme 'unzipps' the DNA strand in replication?
DNA Polymerase
Helicase
RNA Polytmerase
31
RNA is different from DNA because it is...
Compose of nucleotides containing deoxyribose sugar
All of these
Single stranded and shorter
Double stranded and coiled into a helix
32
Monomers are built into polymers in a process called...
Polymeration
Polymerisation
33
Protein synthesis is divided into two sets of reactions: transcription and replication.
True
False
34
What is molecular biology?
I explains the structure of molecules.
It explains the roles of chemical substances involved in life processes.
It explains the roles of carbon in life processes.
I explains the roles of C, H and O in life processes.
35
What do tRNA's do in Translation?
They read the codons of mRNA
Provide cells with nutrients
Transfer proteins from ribosomes
Make ATP in mitochondria
36
Lipids - animals store energy as...
Oils
Fats
Olives
Petrol
37
Where in the cell does glycolysis occur?
cytoplasm
inside the mitochondria
between the inside and outside of the mitochondria
ER
38
Which nitrogenous base pairings are correct?
A&A, C&G
A&T, C&G
A&G, C&T
T&G, C&G
39
Which respiration needs oxygen?
Anaerobic
Aerobic
40
Transcription results in...
copying of entire DNA
copying of one section of the DNA
41
the active site is
a
c
b
42
What is this fatty acid?
Unsaturated cis fatty acid
Saturated fatty acid
Unsaturated trans fatty acid
43
Polymers are complex molecules.
True
False
44
Which one is an nucleic acid?
Neither
Molecule I
Molecule III
Molecule II
45
What are the four sub-units of DNA?
Phosphate, Sugar, Nitrogen base
Thymine, Adenine, Cytosine, Guanine
Adenine, Purines, Pryimidines, Cytosine
None of the them
46
Step two in DNA replication: Free nucleotides diffuse into position.
True
False
47
In Condensation Reaction we use water.
False
True
48
What molecule carries coded DNA from nucleus to cytoplasm?
mRNA
RNA
tRNA
mDNA
49
Proteins and polymers of amino acids are linked by_________________
H2O
carbohydrates
water
peptide bond
50
Inorganic molecules contain carbon.
False
True
51
Carbohydrates store twice as much energy as lipids.
True
False
52
What Friedrich Wöhler did?
Synthesised organic molecule of urea.
He was German. That's all.
Believed in vitalism.
53
Where can you find nucleic acids?
DNA
mRNA
DNA and RNA
RNA
54
Which one is an carbohydrate?
Molecule III
Molecule I
Molecule II
Neither
55
The sequence of amino acids in a polypeptide DOES NOT determine the three-dimensional shape of a protein.
False
True
56
Photosynthesis
Conversion of chemical energy into light energy
Conversion of light energy into chemical energy
trump eating dinner
Eating other plants
57
Which one is an amino acid?
Molecule II
Molecule III
Molecule I
Neither
58
(CH₂O)_n is a general formula of...
Proteins
Carbohydrates
Enzymes
Lipids
59
What base does RNA have that DNA does not?
Guanine
Uracil
Cytosine
Adenine
60
Cell respiration is...
gradual build up of nutrient molecules
gradual breakdown of nutrient molecules
61
Order of triplets determine...
nothing
how amino acids will be assembled
62
The purpose of the light independent stage of photosynthesis is to:
Absorb light in the stroma of chloroplasts
Combine hydrogen ions with carbon dioxide to form glucose
Split water molecules into hydrogen ions and oxygen
Abosrb light in the grana of chloroplasts
63
Which one is an fatty acid?
Molecule I
Molecule II
Molecule III
Neither
64
Triglyceride is made of glycerol and three fatty acids.
True
False
65
What unique property of water enables it to be drawn up inside a xylem of a plant?
Thermal Properties
Adhesion
Cohesion
Attraction
66
The purpose of anaerobic cellular respiration is to:
Break down glucose without oxygen to form lactic acid and ADP
Break down glucose to form pyruvate and ADP
Break down glucose to form pyruvate and ATP
Break down glucose without oxygen to form lactic acid and ATP
67
Transcription occurs in...
mitochondrium
nucleus
cytoplasm
68
Proteins can form quaternary structures.
False
True
69
In water molecule, hydrogens are positively charged.
False
True
70
DNA exhibits..........
Semi-conservative replication
Dispersive Replication
Conservative replication
Translational Replication
71
Which enzyme assembles free nucleotides in correct places in Transcription?
RNA Polymerase
Helicase
mRNA Polymerase
DNA Polymerase
72
Which structures are lost during denaturation
all of them
quaternary, tertiary, secondary
tertiary, quarternary
tertiary, primary, sercondary
73
In Hydrolysis Reaction we use water.
True
False
74
Translation occurs in...
mitochondrium
cytoplasm
nucleus
75
Hydrolysis is an example of...
Anabolic Reaction
Catabolic Reaction
76
What are organic molecules?
They do not contain carbon.
They contain nitrogen.
They contain carbon.
They contain carbon, oxygen and hydrogen.
77
When does anaerobic respiration occur?
When you've just eaten
When you're tired
When the body runs out of glucose
When the body runs out of oxygen
78
The section of DNA that codes for a particular gene is called...
gene
gamete
genome
genetics
79
The polar molecules of water can interact with other polar molecules is a unique property called...
Thermal
Solvent
Adhesion
Cohesion
80
As substrate concentration increases enzyme action ....
Increases up to saturation point
Increases until Substrate concentration becomes limiting
Increases
Increases up to optimum then decreases
81
Aerobic Respiration requires_____
Carbon Dioxide
Oxygen
Floride
Neon
82
A change in shape of the active site of an enzyme (denaturation) can occur because:
The number of polypeptide chains in the protein increased
Disruption of covalent bonds between amino acid side chains
The base sequence of the gene was altered
Disruption of peptide bonds between amino acids
83
Triglycerides combine with phosphate group to make...
Phospholipids
Phosphoric acid
Lipids
84
This is...
Condensation Reaction
Hydrolysis Reaction
85
Amino acids are linked in...
Condensation Reaction
Hydrolysis Reaction
Hydrogen Reaction
In my heart
86
One Gene - One Polypeptide Hypothesis states that...
That gene is expressed when a polypeptide is made.
Each gene codes for a polypeptide.
One polypeptide is coded with three or more amino acids.
87
Who came up with the "one gene, one enzyme (protein)" hypothesis?
Beadle & Tatum
Kanye & John Legend
George & Ringo
Watson & Crick
88
tRNA molecules have codons.
True
False
89
What is special about the active site of an enzyme?
It can change shape
It has a specific shape, complementary to the substrate
It has a regular shape
90
Hom many convalent bonds has Carbon?
1
3
2
4
91
What factors affect enzyme action?
pH
Temperature
Amount of water
Level of oxygen
92
Which enzyme 'unzipps' DNA in Transcription?
Helicase
DNA Polymerase
RNA Polymerase
93
What are enzymes?
They speed up chemical reactions
They alter heart rate
They slow down energy production
Enzymes destroy disease
94
What are the basis for life?
Carbohydrates, Proteins, Nucleic Acids
Carbohydrates, Lipids, Proteins, Nucleic Acids
Carbohydrates, Lipids
Carbohydrates, Lipids, Proteins, Nitrogen
95
What is the structure of DNA?
Phosphate, Alleles, Deoxyribose
Sugar, Alleles, Genomes
Phosphate, Deoxyribose, Nitrogen base
Tymine, Cytosine, Genes
96
What are proteins build of?
Amino Acids
Glycerol
Fatty Acids
Love
97
Hydrophilic substances love water.
False
True
98
What is this fatty acid?
Saturated fatty acid
Unsaturated trans fatty acid
Unsaturated cis fatty acid
99
What is the Codon and amino acid for "start"?
UGU-Glue
AUG-Leu
UGU-Stop
AUG-Met
100
Three bases of mRNA are called...
Anti-codon
Codon
Triplet

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