NEW
Font size
WorksheetsSuprise Quiz Bioch&Biol
Total questions: 10
Worksheet time: 5mins
Why must the development of photosynthesis have preceded the development of oxidative phosphorylation?
Because oxidative phosphorylation depends on atmospheric oxygen
Because photosynthesis occurs first in the mitochondria of eubacteria
Oxidative phosphorylation produces ATP and photosynthesis produces carbohydrates, thus, they are independent processes
This question remains an unsolved question
Mitochondria are thought to have originated from endosymbiosis of _______ by a large host cell.
Anaerobic bacteria
Photosynthetic eubacteria such as cyanobacteria
Fungi such as yeast
Non-photosynthetic aerobic bacteria
The nuclear basket protein complex is a component of the nuclear pore complex found
inside the nucleus.
buried in the nuclear envelope.
on the cytoplasmic face of the pore.
lining the central channel of the pore
Which statement about heterochromatin is false?
It is highly condensed chromatin.
Contains highly repeated DNA sequences.
It is transcriptionally active.
It is largely localized to the nuclear periphery
Indicate which of the following amino acid groups are aromatic:
Phenylalanine, Tyrosine, Tryptophan
Phenylalanine, Alanine, Tyrosine.
Histidina, Lysina, Arginine.
Glutamine, Arginine, Glycine.
Which of the following lipids is saponifiable?
Thromboxane A2.
Prostaglandin E1.
Phosphatidylcholine.
Retinol
A monosaccharide of 6 C, 4 of them asymmetrical, which is part of sucrose is the ...
D–Galactosa.
D–Glucose.
D–Fructose
L–Glucose
The factor that escorts the aminoacyl tRNA to the ribosome and then releases it with GTP hydrolysis following the correct codon–anticodon base pairing is
eIF1
eRF1
eIF2
eEF1a
Pseudogenes are
genes that code for an RNA but do not code for a protein
nonfunctional gene copies
inactive genes
genes containing variant sequences
The directionality of nuclear transport is determined by (1)____ in the nucleus and (2)_____ in the cytosol.
A)
B)
C)
D)
(1) high Ran; (2) low Ran
(1) low Ran; (2) high Ran
(1) high Ran/GTP; (2) high Ran/GDP
(1) high Ran/GDP; (2) high Ran/GTP
