Proteins may contain the following elements: ____________________________.

Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous, Sulfur

Which one of the following statements is not part of the cell theory?

All cells are produced by mitosis

What will we study at the beginning of Year 2 in IB Biology?

cellular respiration and photosynthesis

The reflex arc involves the following nerve cells in sequence:

sensory neuron, interneuron, motor neuron

What is the proper sequence of conduction in the heart?

SA node-AV node-AV bundle-purkinje fibres

Which of the following is not a characteristic of membrane-bound organelles?

They are only found in prokaryotic cells

What is the sequence of the cardiac cycle contraction in the heart?

diastole, atrial systole, ventricular systole

Glycoproteins are involved with ______________ and as ______________.

cell recognition; hormone receptors

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IB Biology Year 1 REVIEW

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Review for Year 1

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Questions 100

Answers

1
Proteins that are permanently embedded in the phospholipid bilayer are called _______ proteins.
sustained
permanent
peripheral
integral
2
The basic building blocks for carbohydrates are _________________________.
fatty acids
amino acids
polysaccharides
monosaccharides
3
A blood clot that occurs in your hearts artery is known as a(n)
coronary thrombosis
myocardial infarction
pulmonary thrombosis
atherosclerosis
4
What is the name of the largest blood vessels that bring blood back to the heart?
pulmonary arteries
pulmonary veins
vena cavae
aorta
5
An open sore in the stomach caused by high amounts of H. pylori is called:
stomach ulcer
colon ulcer
visceral ulcer
skin ulcer
6
Your body produces cells that are specific defense against infections called
anticells
antibodies
antibiotics
antigens
7
Empty question
Empty choice
Empty choice
8
An example of a polysaccharide would be ________________________.
glycogen
fructose
glycerol
glucose
9
The component of blood most involved with blood clotting:
erythrocytes
plasma
platelets
leucocytes
10
Which chamber pumps the greatest volume of blood under the highest pressure?
left ventricle
left atrium
right atrium
right ventricle
11
Which of the following is present in saliva, gastric juice and pancreatic juice?
amylase
HCl
water
mucous
12
_______ describes when a nerve is not conduction an impulse and the inside of the axon is ___.
Action Potential, Negative
Resting Potential, Negative
Action Potential, Positive
Resting Potential, Positive
13
Proteins may contain the following elements: ____________________________.
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous, Sulfur
Carbon, Hydrogen, Oxygen
Carbon, Nitrogen, Sulfur, Phosphorous
Carbon, Hydrogen, Oxygen, Nitrogen
14
As cells increase in size their surface area: volume ratio __________________
stays the same
increases
decreases
15
The connections between heart cells that allow for rapid movement of ions between cells:
AV node
gap junctions
SA node
mitochondria
16
The part of the cell membrane that is hydrophobic:
fatty acid tails
Phosphate heads
glycoproteins
Proteins
17
Fingerlike projections in the small intestine that increase surface area for absorption:
epithelial cells
villi
capillaries
lacteals
18
Lipids contain the following elements: ______________________.
Oxygen, Carbon, Nitrogen
Carbon, Oxygen, Sulfur
Carbon, Oxygen, Hydrogen
Carbon, Nitrogen, Sulfur
19
Which of of the following is not found in gastric juice
bicarbonate
HCl
pepsinogen
water
20
Empty question
Empty choice
Empty choice
21
Carbohydrates contain the following elements: _____________________
Carbon, Hydrogen, Phosphorous
Carbon, Hydrogen, Nitrogen
Carbon, Oxygen, Nitrogen
Carbon, Hydrogen, Oxygen
22
Which of the following will result in an enzyme becoming denatured?
Decrease in substrate
Increase in temperature
Increase in substrate
Increase in enzyme
23
__________________ is a polysaccharide that stores glucose in the liver.
glycogen
glucagon
starch
cellulose
24
Which one of the following statements is not part of the cell theory?
All living things are composed of cells
The cell is the smallest unit of life
All cells are produced by mitosis
All cells arise from pre-existing cells
25
Enzymes make reactions go _________ by __________ the activation energy of a reaction.
faster, lowering
slower, lowering
slower, raising
faster, raising
26
To put two amino acids to form a dipeptide a ___________ molecule must be
water, added
peptide, removed
water, removed
peptide, added
27
During atrial and ventricular diastole, ____________ chambers are filling up with blood
3
2
1
4
28
You view a slide that contains a cell wall and membrane-bound organelles. What is the organism?
plant only
plant or bacteria
bacteria only
animal or bacteria
29
A unicellular organism that does not have a nucleus or organelles is called a(n)
eukaryote
protista
virus
prokaryote
30
Effectors are most closely associated with _______________.
interneurons
sensory neurons
motor neurons
relay neurons
31
What will we study at the beginning of Year 2 in IB Biology?
genetics
ecology
neurobiology
cellular respiration and photosynthesis
32
Which of the following requires energy?
osmosis
passive diffusion
active transport
facilitated diffusion
33
The reflex arc involves the following nerve cells in sequence:
interneuron, sensory neuron, motor neuron
sensory neuron, interneuron, motor neuron
interneuron, motor neuron, sensory neuron
motor neuron, interneuron, sensory neuron
34
Epithelial cells contain ______ in high amounts due to small molecules entering by endocytosis
peroxisomes
pinocytic vesicles
phagocytic vesicles
lysosomes
35
A healthy amount of fibre in your diet helps to prevent ____________
constipation
ulcers
diarrhea
36
An interneuron is ____________________.
in the peripheral nervous system
part of a motor neuron
part of a sensory neuron
in the central nervous system
37
One example of a protein is _______________________________.
cellulose
glucose
wax
collagen
38
12. A lymphocyte is an example of a _________________.
platelet
leucocyte
erythrocyte
red blood cell
39
A hydrophilic molecule:
cannot dissolve in water
is attracted to lipids
is attracted to fatty acids
can dissolve in water
40
The cell membrane is made up of a ___________________ bilayer.
lipid
phospholipid
monolipid
bilipid
41
What is the proper sequence of conduction in the heart?
SA node-AV bundle-AV node-Purkinje fibres
node-AV node-purkinje fibres-AV bundle
SA node-AV node-AV bundle-purkinje fibres
AV node-SA node-AV bundle-purkinje fibres
42
If the shape of an enzyme changes we say that it has been ____________________.
destroyed
denatured
natured
decommissioned
43
The class of proteins that speed up chemical reactions are called
antigens
hormones
antibodies
enzymes
44
Which of the following is not a characteristic of membrane-bound organelles?
They are found in eukaryotic cells
They have specific roles in cell metabolism
They are part of the cell ultrastructure
They are only found in prokaryotic cells
45
There are __________________ different amino acids that combine to make proteins.
20
2
200
10
46
Undigested material, excretory products and unabsorbed water that are egested are called:
feces
chyme
bolus
enzymes
47
Which of the following blood vessels have the largest lumen relative to its overall diameter?
veins
arterioles
capillaries
arteries
48
What is the sequence of the cardiac cycle contraction in the heart?
diastole, ventricular systole, atrial systole
diastole, atrial diastole, ventricular diastole
systole, ventricular diastole, atrial diastole
diastole, atrial systole, ventricular systole
49
Glycoproteins are involved with ______________ and as ______________.
ion diffusion; protein channels
membrane fluidity; hormone receptors
diffusion; protein channels
cell recognition; hormone receptors
50
What type of substance would lipase break down?
carboyhydrates
nucleic acids
lipids
proteins
51
The valve that connects the left ventricle to the flow of blood towards the body tissues is:
bicuspid valve
pulmonary semilunar valve
aortic semilunar valve
tricuspid valve
52
The enzyme that breaks down milk sugar is called:
Sucrase
Lactose
Maltase
Lactase
53
Which of the following is also considered the pacemaker of the heart?
AV node
purkinje fibers
AV bundle
SA node
54
Which of the following does not require a membrane protein:
sodium-potassium pump
facilitated transport
passive diffusion
active transport
55
Condensation synthesis involves the ________________ of water to join molecules together.
addition
removal
56
How many monosaccharides come together to form a disaccharide?
4
2
3
1
57
The monomers that make up polypeptides are called ______________________________.
proteins
fatty acids
amino acids
monosaccharides
58
Cell drinking:
pinocytosis
phagocytosis
passive diffusion
osmosis
59
What route is used to export proteins from the cell?
Golgi apparatus - lysosome - RER
RER - Golgi apparatus - Cell membrane
Golgi apparatus - RER - plasma membrane
RER - lysosome - Golgi apparatus
60
Polymers are broken down into monomers by the process of ______________________.
hydrolysis
hydrosynthesis
dehydration hydrolysis
dehydration synthesis
61
Hydrolysis involves the ____________________ of water to break down polymers into monomers.
Addition
Removal
62
Diffusion is the movement of substances from an area of _____ to _____ concentration
lesser; greater
lesser; lesser
greater; lesser
greater; greater
63
An example of a lipid polymer is _____________________.
glycerol
cellulose
fatty acid
wax
64
Monomers form polymers by the process of __________________________
dehydration synthesis
ionic bonding
covalent bonding
hydrolysis
65
The exocrine system is involved with the secretion of ___________ into ____________.
enzymes, blood
enzymes, ducts
hormones, blood
hormones, ducts
66
The monomers that make up polysaccharides are: ___________________.
Polypeptides
Monosaccharides
fatty acids
amino acids
67
The space between two neurons is called the _______________.
synaptic bridge
synaptic tunnel
synaptic cleft
synaptic connection
68
Which characteristic below does not describe enzymes?
Are specific
Are recycled
Have an active site
Are made from lipids
69
The pulmonary artery has blood that is ________________________________________________.
High in oxygen and high in CO2
Low in oxygen and high in CO2
Low in oxygen and low in CO2
high in oxygen and low in CO2
70
Which of the following carbohydrates gives fiber in our diet?
chitin
glycogen
cellulose
starch
71
The initial contraction of the heart beat is controlled by the:
purkinje fibres
atrioventricular node
sinatrial node
medulla oblongata
72
A hypertonic solution has __________ amount of dissolved solute than the cell immersed in it.
more
the same
less
73
The part of a neuron that contains the nucleus is called:
dendrite
cell body
synapse
axon
74
Which of the following structures is present in both plant and animal cells?
chloroplast
mitochondria
large central vacuole
cell wall
75
Dehydration synthesis involves the _________________ of water to form polymers from monomers.
Addition
Removal
76
If a cell contains ribosomes, pili and a cell membrane, what other structure will be present?
RER
plasmid
nuclear membrane
mitochondria
77
The part of the enzyme where the chemical reactions occur is called the
substrate site
enzyme site
active site
allosteric site
78
The hardening of the arteries due to plaques is called _______________
atherosclerosis
thrombosis
myocardial infarction
stroke
79
In which chamber of the heart is the SA valve located?
Right ventricle
Left atrium
Right atrium
Left ventricle
80
During repolarization, the _________ ion channels close and the _________ ion channels open.
Na+, K+
K+, Na+
81
pancreatic juice has a relatively ___________ pH because it contains ________.
HIGH, bicarbonate
HIGH, HCl
LOW, HCl
LOW, bicarbonate
82
Arteries carry blood _______________________ the heart.
away from and towards
away from
towards
83
Another name for a polypeptide is _________________________.
amino acid
polysaccharide
protein
monosaccharide
84
If a cell is placed in a hypertonic solution, water will move ___________ the cell.
out of
into
85
_____________________ is a polysaccharide that makes up plant cell walls.
starch
glycogen
cellulose
chitin
86
Red blood cells contain the protein _________________________.
hemoglobin
myosin
collagen
keratin
87
Two amino acids come together to form a ______________________.
peptide
dipeptide
polypeptide
monopeptide
88
The main sounds of the heart beat are due to
AV valves opening and SL valves closing
AV valves opening and SL valves closing
AV valves closing and SL valves opening
V valves closing and SL valves closing
89
Sensory neurons transmit nerve impulses ____________ the cell body.
towards
away from
90
The subunit or monomer that makes up proteins is called a(n) _______________.
fatty acid
amino acid
monosaccharide
nucleotide
91
The chemicals that are involved in the reaction regulated by an enzyme are called
biomolecules
active molecules
substrates
products
92
Which of the following is not a risk factor for hypertension?
old age
frequent exercise
smoking
genetics
93
Short branched nerve fibers are called:
axons
synapses
dendrites
cell bodies
94
The bicuspid valve is found on the ________ side of the heart between the ________ and _______
right, right ventricle, pulmonary artery
Right, right atrium, right ventricle
Left, left atrium, left ventricle
Left, left ventricle, aorta
95
How do bacteria undergo asexual reproduction?
meiosis
binary fission
conjugation
mitosis
96
The Na+/K+ pump actively transports ______ Na⁺ _______ and ________K⁺ ________.
2, out; 3, in
2, in; 3, out
3, out; 2, in
3, in; 2, out
97
Capillaries in the lungs release ___________ and pick up ____________.
oxygen, carbon dioxide
oxygen, oxygen
carbon dioxide, carbon dioxide
carbon dioxide, oxygen
98
If an animal cell is placed in a hypotonic solution it may:
burst
shrink
stay the same
99
The major role of the colon is to ________________
reabsorb water
digest nutrients
produce digestive enzymes
absorb nutrients
100
When atria are in systole, the ventricles are in ____________________.
systole
diastole

IB Biology Year 1 REVIEW Flashcards | StudBud