Cell Biology Revision

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Cell Quizzes & Trivia

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1.  Actin filaments are ___nm in diameter
2.  The transmission of information across a membrane is called signal ___
3.  Name the microtubule inhibitor which prevents polymerisation
4.  SER is involved in ___ and also stores calcium
5.  _____ ______ won the Nobel Prize in 1999 for the discovery of protein signal sequences
6.  Name the actin filament inhibitor which prevents depolymerisation
7.  Plant pigments are generally separated by paper chromatography using a suitable lipid solvent e.g. chloroform
8.  Lysosomes are not the main protein degrader as cells have specialised ____ for this function
9.  Name the microtubule inhibitor which prevents disaggregation
10.  Chloroplasts are thought to have arisen from the blue-green algae ____
11.  Flagella are found in:
12.  Microtubules are ___nm in diameter
13.  The polar head of phospholipids consists of 
14.  Myofibrils are ___microns in diameter
15.  In transmission electron microscopy, a beam of electrons is generated by a tungsten filament and accelerated at ____kV
16.  The internal space of a chloroplast is called the ____
17.  In autophagy, internal organelles are taken into _____ which then fuse with lysosomes
18.  Myofibrils are made up of chains of ____
19.  The enzyme ____ ____ removes the signal sequence
20.  The person to first identify the nucleus was ___
21.  Three examples of chemical signals
22.  ____ - the protein which acts as a template for the length of thin filaments
23.  Dynein motors:
24.  Most plastid genomes are _____kbp, although nonphotosynthetic genomes are reduced e.g. Plasmodium falciparum - ___kbp
25.  Thylakoid membranes in chloroplasts sometimes form ____
26.  ____ signals bind to receptors on neighbouring cells
27.  ____ - the movement away/towards a higher concentration of a chemical repellent/attractant
28.  ____ ______ - disease of faulty LDL receptors
29.  The phosphorylation of ____ causes ___ rotation of the flagella
30.  Protein makes up approximately __% of myelin membrane
31.  Plastids are found in higher plants, algae and protists such as Apicomplexa e.g. _____ and ____
32.  FACS Machine stands for:
33.  The nucleolus is the site of _____
34.  Name a photosynthetic algae whose plastids have triple/more envelopes
35.  Name a type of cell with a lot of SER
36.  Signal sequences bind to the ____ _____ _____ which then binds to a receptor on the ER
37.  Resolution is the ability to perceive close objects as separate entities
38.  _____ - cell takes up small vesicles of non-specific fluid
39.  Gel filtration chromatography uses ___
40.  Largest mitochondrial genome is that of ____ - 98 genes
41.  Smallest mt. genome is that of ____
42.  Name a group of enzymes involved in drug detoxification in SER
43.  In plant cell walls, crytalline cellulose microfilaments are composed of ___
44.  In phagocytosis, after the vesicle has enclosed the phagosome it fuses with the ___ ____ and becomes a ____ ____
45.  The inner membrane of the nucleus is lined with the fibrous protein ____
46.  Describe the 4 stages of the transition of a bacteria to an organelle.
47.  Mitochondrial genomes code for enzymes for __ ___ and ___ ____
48.  _____ secrete calcium and phosphate ions for bone formation
49.  Name the 2 proteins associated with thin filaments
50.  An example of transcytosis is the uptake of the ___ antibody by infant from mother's milk
51.  The Z disc is made up of ___ and ___
52.  After contraction of the sarcomere, ___ binds myosin and it releases actin.
53.  ____ (phosphotase enzyme) rapidly dephosphorylates ___ and the flagella rotate ____
54.  Intermediate filaments are ___nm in diameter
55.  Name a type of cell with a lot of RER
56.  The simple protist ____ has been shown to have eubacterial organisation of it mitochondrial DNA
57.  Plasmodesmata and gap junctions are approximately ___nm wide
58.  Example of a repellent in chemotaxis
59.  ____ signals bind to receptors on the same cell
60.  A carbohydrate rich zone of oligosaccharides and associated proteins is called a ___
61.  Cartilage is mainly composed of ___ and ____ which are produced by _____
62.  Tight junctions make a seal between ____ cells
63.  Mitochondria are thought to have arisen from the ____ line
64.  ____ and ____ make up the phosphorelay system
65.  Light microscope resolution is ___nm
66.  Protein makes up approximately  __% of the inner membrane of mitochondria
67.  ___ are from the death cap toadstool
68.  Once phosphorylated, ____ transfers its phosphate to ___
69.  Neighbouring plant cells are joined by the ____ _____
70.  Name three types of immortal cell line
71.  The phospholipids distributed on outside of membranes:
72.  Name the proteoglycan present in the basal lamina
73.  Flagella are ____microns long
74.  Neurofilaments are ___kD
75.  What do amyloplasts store?
76.  Name the actin filament inhibitor which prevents polymerisation
77.  Ganglioside GM1 acts as a receptor for the bacterial toxin which causes ___
78.  Tropomodulin caps which end of the filament? positive/negative
79.  Thin filaments are associated with ____ which is attached to a ____
80.  Intermediate filaments have a ___ terminal head and a ____ terminal tail
81.  In animal cells, extracellular matrices are often linked to underlying cells by the protein ____
82.  One of the things plastid genomes code for is the large subunit of carbon-fixing enzyme ____
83.  In cholesterol, the hydrophilic tail and hydrophobic tail are joined by a ___
84.  Thick filaments are composed of ____
85.  Name the 2 accessory proteins which form links between microtubules in the axoneme (alphabetically)
86.  Antibody IgA binds to the ___ receptor and is taken up by receptor-mediated endocytosis. The antibody and receptor then pass to the ___ ____ and then to the ____ ____
87.  In carrier proteins, when it transports two different molecules in the same direction it is called ___
88.  What is the name of the protein associated with the cytoplasmic side of red blood cell membranes?
89.  In plant cell walls, ____ substances bond with cations to form rigid gels
90.  Chlorophyll fluoresces ___ and lignin fluoresces ___
91.  During protein glycosylation, the original oligosaccharide added is ____
92.  ____ and hydrogenosomes have similarities with mitochondria
93.  In density gradient centrifugation, a shallow sucrose gradient is
94.  Microtubules are made up of __ protofilaments
95.  Signal sequences are ____ amino acids long
96.  In confocal microscopy, Z sections are computed into _____ and 3D images
97.  Kynesins are double stranded helical coils with ___
98.  Intermediate filament keratin is ___kD
99.  The basal lamina is an extracellular matrix excreted by ____ cells
100.  In animals, hormones are produced by the ____ system
101.  An example of a peroxisomal disorder:
102.  Gap junctions are made up of 2 hexamers called ____
103.  Intermediate filament vimentin is ___kD
104.  Name the 3 glycoproteins present in the basal lamina
105.  Lysosomes have a pH of ___
106.  ___ which fluoresces blue, can be used to tag DNA
107.  Clathrin forms ____ shape from intertwined chains
108.  In differential centrifugation, the 3 speeds are:
109.  Human eye resolution is ____ nm
110.  The core of cilia/flagella is called the ____
111.  Molecules which can diffuse through the membrane easily:
112.  Microtubules are ___ - made up of alpha and beta tubulin
113.  ______ is polarised endocytosis plus exocytosis
114.  Muscle fibres are made up of ____
115.  Example of an attractant in chemotaxis
116.  In the bacterial sensing of repellents mechanism, binding of the repellent to a receptor causes the autophosphorylation of ___ via the adaptor protein ____
117.  Nucleus are ____microns in size
118.  Amorphous hemicellulose makes up ___% of plant cell walls
119.  When bacterial flagella rotate clockwise, the movement of the bacteria is
120.  Name the protein molecule in LDLs
121.  What is the protein-membrane association called when the protein is covalently bonded to the membrane?
122.  In the gut, apical membranes have ___ ___ of glucose and basolateral membranes have ____ ____ of glucose
123.  Electron microscope resolution is ___nm
124.  Phospholipids are ___ lipids - they have a hydrophilic and hydrophobic end.
125.  Three examples of physical signals
126.  The Golgi apparatus is made up of stacks of ____
127.  Scleiden and Swann proposed the ___
128.  Example of a phenolic in plant cell walls is ___
129.  Actin filaments are composed of the globular protein _____
130.  _____ form mechanically strong connection between epithelial cells
131.  ____ have small vestigal nucleoids in their plastids
132.  There are numerous ____ _____ molecules inside an LDL
133.  Peroxisomes are involved in ___ reactions and the removal of ____
134.  Coccoliths are scales made of ___ ____ which form the coat of ____ (algae)
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