Biochemistry 3653 Dr. Ruhl Exam 2 Questions
#8 What is the change in G prime?
-4.00
What are biological functions of lipids?
-coat for plant stems -energy storage -membrane structure
#7 What is the value of Q?
.1
Which membrane would you expect to have the highest fluidity? 14:0 fatty acid 16:1 fatty acid with cis double bond 16:2 fatty acid with 2 cis double bonds 14:2 fatty acid, with 2 cis double bonds
14:2 fatty acid, with 2 cis double bonds -the one with the lowest first number and highest second number
Sheep have 21% G nucleotide in its DNA. What % is the A nucleotide?
29% This is because since G is 21%, C is also 21% 100-42 is 58. Split that in half to get A and T and that is 29% each
How many Hydrogen bonds does the base pair GC have?
3
What does the following nucleotide sequence code for? 3'- GCUUACCCG -5'
3' is the C terminus 5' is the N terminus It reads N -> C N-Ala-His-Ser-C
#5
A
#19
C
What best describes the structure of a nucleosome?
DNA wrapped around an octomer containing two each of H2A, H2B, H3, and H4
Put these 3 events in order a) A 5' cap is put on the RNA molecule b) The RNA molecule leaves the nucleus c) Ribosomes form a complex with the RNA molecule
a, b ,c events are in order
A wax is formed through esterification reaction of...
alcohol and carboxylic acid
Where are duplicated chromosomes bound at?
centromeres
What is the codon part of the sequence? What is the anticodon?
codon-mRNA anticodon-tRNA
What noncovalent interaction most strongly stabilizes membranes?
hydrophobic effect
When EPSPS is inhibited, the plant can no longer...
make aromatic amino acids
Which type of inhibitor structurally resembles the normal substrate?
reactive substrate analogs
Metandienone is an illegal drug used by body builders to increase muscle mass. It is injected into the bloodstream. Which mechanism is used by this drug to enter into cells?
simple diffusion
Where does the energy come from for creating a phosphodiester bond in DNA replication?
the hydrolysis of 2 oxygen-phosphate bonds
