Cells
Organelles
Organic Molecules
Inorganic Molecules
Random!
100
T/F: For E. coli and yeast cells, growth rate is indirectly proportional to its cell size, or volume.
FALSE. The growth rate is DIRECTLY proportional to the cell size.
100
T/F: A phospholipid bilayer membrane thickness is about 2nm.
False. A phospholipid is about 2nm long so the bilayer is 4nm thick.
100
What is the most abundant metabolite?
Protein (see Molecules page)
100
T/F: The more toxic an ion is in nature, the more tightly it is regulated in cells
TRUE (see Ions page)
100
About how many ATP molecules can be produced from combustion of 1 glucose molecule?
30 ATP (see Carbohydrates page)
200
What type of cell is considered one of the largest human cells?
A female egg cell
200
T/F: Both mitochondria and ER were not originally part of eukaryotes.
FALSE. It's mitochondria and CHLOROPLAST. (see Mitochondria and Chloroplast page)
200
T/F: ATP (our main energy carrier) is bigger than NADP (another energy carrier).
FALSE. (See Adenosine triphosphate (ATP) page)
200
What is the overall charge of the cell?
Neutral (see Ions page)
200
Which is smaller: mRNA or the protein it codes for?
Protein
300
T/F: The size of the synapses in humans is about the size of a typical bacterium.
TRUE
300
Which is longer: actin or microtubules?
Microtubules (see Cytoskeleton page)
300
About how many proteins can a mRNA be translated before being degraded?
10-100 (See Nucleic acid)
300
How long is the hydrated ionic radii?
0.3-0.4 nm
300
T/F: A good rule of thumb for sizes of all small building blocks such as amino acids, nucleotides, energy carriers, etc. is 1 nm.
TRUE
400
What is the density of a cell?
1.1 g/ml (see Cells page)
400
T/F: Compared to nuclear volume of diploid yeast cell, how much bigger is nuclear volume of a haploid yeast cell?
An order of magnitude bigger. (See Nucleus page)
400
List 4 metabolites according to mass from SMALLEST to LARGEST: (assume glucose for carbohydrate)
Amino acid < Glucose < Nucleotide < Fatty acid
400
How many ions pass through an ion channel per second?
10^7 ions/sec (see Ion page)
400
What is free energy of ATP hydrolysis under standard condition?
28-34 kJ/mol (see ATP page)
500
List these cells according to size from smallest to largest: sperm cell, a virus, an E.coli, a HeLa cell, and a haploid yeast cell.
Virus < E.coli < Sperm cell < Haploid yeast cell < HeLa cell
500
What is the rate of translation?
20 aa/sec (see Ribosomes page)
500
List 4 macromolecules according to their average density from SMALLEST to LARGEST:
Lipid < Nucleic acid < Protein < Carbohydrate
500
What is the energy associated with hydrogen bonds?
6-30 kJ/mol or 2-12 kb*T (see Water page)
500
Name 3 examples of highly abundant protein
Rubisco, ribosome + its components, ACP, structural protein (see Protein page)
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