Cell Biology Revision

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Cell Quizzes & Trivia

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