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Module 2 BIOL103 Part A Flashcards | StudBud
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Module 2 BIOL103 Part A
Module 2 BIOL103 Part A
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A quiz for module 2, Part A of the BIOL103 exam. #UoW #BIOL103
Flashcards
108 cards
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Practice quiz
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Questions
108
Answers
1
Which of the following is not a characteristic of stroma?
A membranous sac
Contains the chloroplast DNA
Internal fluid
Contains ribosomes
2
What is the difference between simple and stratified?
Stratified has 1 layer
Simple has 1 layer
Simple has multiple layers
3
What are three types of membranes?
Amphitropic
Integral
Peripheral
All the above
4
What is the plasmodesmata?
Directly link bacteria
Directly link fungi
Directly link animal cells
Directly link plant cells
5
Metabolic rate is not dependent on?
Food and water availability
Gender
Environmental temperature
Energy expenditure
6
What two substrates make up ribosomes?
Proteins and tRNA
rRNA and proteins
rRNA and lipids
mRNA and proteins
7
How many main types of muscle tissue do we have?
2
1
4
3
8
Which of the following is not absent in prokaryotes?
Ribosomes
Mitochondria
Vacuoles
Nucleus
9
What does the endomembrane system regulate?
Stabilisation of the cell
Protein traffic
Lipid traffic
Metabolic functions
10
Which domains contain prokaryotic cells?
Archaea and Eukaryota
Archaea and Bacteria
Bacteria and Eukaryota
Arachaea and Prokaryota
11
Which of the following is not a component of ATP?
Triphosphate group
Adenine
Cytosine
Ribose sugar
12
Which of the following can not cross the selectively permeable barrier freely?
Carbon dioxide
Oxygen
Water
Ammonia
13
The amount of energy that is available to do work is known as?
Why is chemistry in biology?!!!
Enthalpy
Gibbs Free Energy
Entropy
14
When a plant cell is placed in a hypo-osmotic solution the cell wall will prevent:
Active transport
Plasmolysis
The cell from bursting
Diffusion
15
Which of the following is not a function of cholesterol in animal cell membranes?
Disrupts regular packaging of phospholipid
Reduces phospholipid movement
Increases fluidity at moderate temperatures
Increases fluidity at low temperatures
16
Which of the following is a difference betweenplant and animal cells?
Flagella
Plasma membrane
Ribosomes
Mitochondria
17
Which of the following fibres are not found in connective tissue?
Collagen
Recticulin
Actine
Elastin
18
What type of transport moves against the concentration gradient?
Passive transport
Diffusion
Active transport
Osmosis
19
Enzymes are used to:
Decrease activation energy and increase speed
Lower speed
Increase activation energy
Decrease activation energy
20
According to the first law of thermodynamics, the total energy of the universe:
Remains constant
Is increasing
Is decreasing
Is reversing
21
Microtubules
Have a distinct protein
Are composed of tubulin
Are composed of actin
Nne of the above
22
The arrangement of a molecular bilayer by lipids is:
Not spontaneous
Spontaneous
23
Whcih organelle produces pectin?
ER
Golgi apparatus
Nucleus
Chloroplasts
24
Which of the following is not a form of intracellular junction?
Anchoring
None of the answers
Communication
Occluding
25
What makes up the protoplasm?
Cytosol and nuclear envelope
Nucleus and mitochondria
Cytosol and nucleus
Cytoplasm and nucleus
26
Can chloroplasts move around the cell?
No
Yes
27
Which organelle accounts for more than half of the total membrane in eukaryotic cells?
Mitochondria
Endoplasmic reticulum
Nuclear envelope
Golgi apparatus
28
Which of the bonds are not used for fuel extraction?
C-C
C-H
C-N
C-O
29
Which of the following is only present in plants, algae and some protozoa?
Chloroplasts
Vesicles
Lysosomes
Cytoskeleton
30
Rapid movement of ions across a membrane is mediated by:
Carriers
Exocytosis
Channels
Transport ATPases
31
How many membranes surround mitochondria?
4
1
2
3
32
How many types of activate transport are there?
3
1
4
2
33
Which part of the ER has ribosomes embedded?
Rough ER
Smooth ER
34
How efficient is the energy conversion in cells?
40%
30%
20%
10%
35
How efficient is energy transfer?
100%
Never 100%
36
Which metabolic pathway is involved in the synthesis of amino acids?
Catabolism
Anabolism
37
Which of the following is not a characteristic of prokaryotic cells?
Cytoplasm bound by the plasma membrane
A nucleoid
Vacuole
No nucleus
38
Which type of junction prevents molecules passing the extracellular space between cells?
Tight
Communicating
Anchoring
39
Which of the following is not affected by adhesive proteins?
Migration
None of the above
Growth
Cell polarity
40
What would be the consequence if someone was transfused intravenously with distilled water?
The RBC would be supported by the cell wall and not change
The RBC would shrink
The RBC would burst
The RBC would stay the same
41
Which of the following is not a component of the endomembrane system?
Lysosomes
Nucleus
Plasma membrane
Nuclear envelope
42
Which of the following animal tissues receives signals?
Epithelial
Connective
Muscular
Nervous
43
What is the basic structural and functional unit of living organisms?
Organeles
Cells
Atoms
Elements
44
What type of enzymes are contained in lysosomes? (best answer)
Anabolic enzymes
Hydroxylytic enzymes
Hydrolytic enzymes
Catabolic enzymes?
45
Do membrane proteins attach of float in the lipid bilayer?
Attach
Float
46
Where are ribosomes assembled?
Mitochondria
Cytoplasm
Nucleus
Nucleolus
47
Which metabolic pathway releases energy?
Catabolism
Anabolism
48
A group of specialised cells of similar structure and function is known as a(n):
Cell cluster
Organ system
Functional unit
Tissue
49
Where does the action of an organism begin?
Cellular level
Subcellular level
Atomic level
Tissue level
50
Which type of signal uses secreting (not to be confused with endocrine) cells?
Synaptic
Paracrine
Endocrine
Endothelial
51
The extensive network of proteins and polysaccharides that fills the spaces between cells is:
Serum
Plasma
Interstitial fluid
The extracellular matrix
52
What is the diameter of prokaryotic cells?
4 micrometres
3 micrometres
1 micrometre
2 micrometres
53
How do peripheral proteins attach via?
Non-polar interactions
Non-covalent interactions
Polar interactions
Covalent interaction
54
Plant cell walls:
Are soft and pliable
Are predominantly composed of polysaccharides
Have strong micro fibrils and pectin that resist stretching
Are predominantly composed of proteins
55
What type of fibre makes up cell walls?
Chitin
Amylose
Cellulose
Starch
56
How many membranes surround the nucleus?
Three
One
Two
Four
57
Which of the following is not a property of facilitated diffusion?
Faster than regular diffusion
Transport proteins are specific
Transport proteins can become saturated
Transport is not inhibited by competition
58
What organelle is a member of the family of plastids?
Cytoskeleton
Mitochondria
Vacuole
Chloroplasts
59
What is the first step of the signal transduction pathway?
Response
Activation
Reception
Transduction
60
Which organelle is the site for cellular respiration?
Ribosome
Endoplasmic reticulum
Mitochondria
Nucleus
61
Which structural protein recoils to its original shape?
Fibronectin
Elastin
Laminin
Collagen
62
What is the limit of human eye's resolution?
200 micrometres
300 micrometres
100 micrometres
400 micrometres
63
Can mitochondria be seen using a light microscope?
No
Yes
64
What is chemical energy?
The potential energy stored in bonds between atoms
The usage of ATP
The energy stored in uranium
The kinetic energy used by food
65
From what type of energy do we get heat?
Potential energy
Thermal energy
Kinetic energy
Chemical energy
66
Which of the following is not a function of the smooth ER?
Synthesis of protein
Metabolizes carbohydrates
Stores calcium ions
Detoxifies drugs and poisons
67
What is the dominant feature of eukaryotic cells?
Ribosomes
Nuclear envelope
Nucleus
Nucleoid
68
How many functions do membrane proteins have?
4
5
7
6
69
Does a spontaneous reaction require energy input?
Yes
No
70
What are the 3 main components of the ECM?
Adhesive proteins
Structural protains
All of the above
Polysaccharides
71
What structure contains high concentrations of RNA, protein and DNA?
Nuclear Envelope
HELP!!!
Nuclear pores
Nucleoli
72
Which type of a cell lacks a membrane bound nucleus?
Prokaryotic
Eukaryotic
73
Trehalose if the blood sugar for?
Insects
Vertebrates
Plants
Birds
74
Which type of activate transport uses directly coupling of ATP for energy?
Secondary
Quaternary
Primary
Tertiary
75
Glial cells support nervous tissue
False
True
76
Which type of active transport uses co-transporters?
Secondary
Primary
77
Which of the following is not a function of vacuoles?
Storage of nutrients, pigments or waste materials
Maintenance of cell turgor pressure
Contains hydrolytic enzymes
Production of lysosomes
78
Which type of solution has a higher solute concentration and lower water concentration?
Still need to revise this
Isotonic
Hypotonic
Hypertonic
79
If a red blood cell is placed in an isotonic solution, what happens?
It bursts
It crenates
It remains normal
The movement of water going in is the same as going out
80
Why do lipids produce the most energy?
They are in an oxidised state
They are in a reduced state
81
Rate of diffusion depends on
Both
Magnitude of concentration gradient
Permeability
82
What form of junction is a desmosome?
Tight
Communicating
Anchoring
Occluding
83
Which of the following is not a function of the cell wall?
None of the above
Prevents excessive uptake of water
Protection
Maintenance of shape
84
What chemical does peroxisomes produce?
Hydrogen peroxide
Sulfurce acid
Hydrogen chloride
Hydrogen iodide
85
When does a spontaneous reaction occur?
When Gibbs free energy is negative
When Gibbs free energy is positive
When Gibbs free energy is 0
86
What type of junction provides a pathway of low electrical resistance?
Gap
Anchoring
Communicating
Tight
87
Which of the following types of tissue give rise to the glandular tissue of endocrine glands?
Epithelial
Nervous
Muscular
Connective
88
Which face of the cisternae (golgi apparatus) faces the cisterna of the ER?
Cis Face
Trans face
89
How many components make up the endomembrane system?
7
5
6
4
90
Which of the three compoenents of the cytoskeleton are more permanent?
Microfilaments
Intermediate filaments
Microtubules
91
Which of the following is not a basic feature of a cell?
Nucleus
Ribosomes
Plasma membrane
Chromosomes
92
Diffusion is from:
Low concentration to high concentration
High concentration to low concentration
93
Which of the following is not a component of the cytoskeleton?
Microfilaments
Macrotubules
Microtubules
Intermediate filaments
94
The 2 main forms of the extracellular matrix are: (pick 1)
Basal lamina
Plasmodesmata
Interstitial matrix
Epithelial conjugates
95
What charge on polysaccharides attract cations?
Strong positive
Weak postive
Weak negative
Strong negative
96
When Gibbs free energy is negative:
It is endergonic
It is exergonic
97
Which is faster?
Carrier
Channel
98
How many polypeptide chains make up collagen?
1
3
2
4
99
According to the second law of thermodynamics, the entropy of the universe is:
Increasing
Remaining constant
Decelerating
Decreasing
100
Carrier proteins in the plasma membrane are required for?
Activate transport
Facilitated diffusion and Active transport
Diffusion
Facilitated diffusion
101
What type of proteins make up connexons?
Unimembranes
Extramembranes
Transmembranes
Intramembranes
102
Permeability of molecules depends on?
Lipid solubility
All the above
Electrical charge
Size
103
Which undergoes a conformational change?
Carrier
Channel
104
Where do organelles and other subcellular components lie in eukaryotic cells?
Nucleus
Nucleosol
Cytoplasm
Cytosol
105
Membranes are:
Asymmetrical
Symmetrical
106
Plastids are found in what type of cell?
All cells
All eukaryotic cells
Prokaryotes only
Plant and algal cells
107
Neurons are able to divide
False
True
108
'in organisms, much of the work involves the transfer of energy' is referred to as?
Bioinformatics
The first law of thermodynamics
Bioenergetics
The second law of thermodynamics
