In: Biology
RELATED TO CELLULAR RESPIRATION
1. Drug A inhibits citrate synthase, an enzyme that catalyzes the synthesis of citrate in the citrate acid cycle. In cells treated with Drug A, - Indicate whether the statements below are TRUE or FALSE.
Acetyl-CoA levels will increase
CO2 production will increase
The rate of ATP production will decrease
NADH will accumulate in the cell.
2. Drug B prevents NADH from donating electrons to Complex I in the ETC. Indicate whether the statements below are TRUE or FALSE.
The rate of ATP production will increase
Oxygen consumption will increase.
Fes in Complex I will stay in the reduced form.
FADH2 can still donate electrons to Complex II.
3. Drug C acts as a channel in the mitochondrial inner membrane and allows protons to pass freely between the matrix and the intermembrane space. Indicate whether the statements below are TRUE or FALSE.
The ATP level in the cell will increase.
The pH of the mitochondrial intermembrane space will decrease.
The rate of glycolysis will increase.
The rate of CO2 production will decrease.
Oxygen consumption will decrease.
NADH will not be oxidized to NAD+.
The rate of fatty acid catabolism will likely increase
In: Biology
A lack of ATP (high ADP, AMP, Pi) would favor
a. Glycolysis over gluconeogenesis
b. Glycogenolysis over glycogenesis
c. Gluconeogenesis over glycolysis
d. Glycogenesis over glycogenolysis
e. Both a and b f. Both c and b
Please confirm if A is the correct answer.
In: Chemistry
Dietary lipids absorbed from the intestinal brush border are transported as chylomicrons in blood. T/F?
Glycosaminoglycans commonly contain repeating disaccharides. T/F?
Which of the following statements about glycolysis is TRUE?
| A. |
Glucokinase catalyzes the conversion of glucose to glucose 6-Phosphate in the liver |
|
| B. |
When one molecule of glucose is converted to pyruvate via glycolysis, one molecule of NAD+ is reduced |
|
| C. |
When one molecule of glucose is converted to pyruvate via glycolysis, one carbon is lost as carbon dioxide |
|
| D. |
Hexokinase catalyzes the conversion of fructose 6-phosphate to fructose 1,6-Bisphosphate |
In: Biology
5. Glycolysis
a. The hydroxyl group on the sixth carbon on a glucose molecule is radiolabeled using O18. Please draw out the pathway showing where this radiolabel is in each step of the pathway.
b. In glycolysis, ATP molecules are produced. Please write out the reactions that utilize ATP as well as the ones that create ATP, and explain how many molecules of ATP are made in glycolysis.
c. A reaction is set up with 3-phosphoglycerate, where the phosphate atom is radiolabeled (P32) and incubated with phosphoglycerate mutase (unphosphorylated). Please draw the mechanism, and list the components of the reaction that may be radiolabeled after five minutes.
In: Biology
Find the double integral of region (2x-y)dA, where region R is in the first quadrant enclosed by the circle x2+y2=4 and the lines x=0 and y=x
In: Math
Leonardo da Vinci painted The Last Supper, what does it mean that Christ's head is the point of emphasis in a triangle? I need the answer at least 10 sentence with citation proof.
In: Psychology
1. Do all animals have the same number of chromosomes? Why or Why not?
2.In detail, describe the cell cycle, including both the processes that occur during interphase, and mitotic phase.
3.Environment versus genetics, what do you think?
4.Describe the DNA and RNA molecule, including the chemical make-up and functions.
5.How would DNA direct the production of proteins via RNA?
6.Discuss the flow of genetic information.
7.Compare and contrast: no mutation, silent mutation, missense mutation, and nonsense mutation.
8.Using your textbook, what amino acids would be produced by an mRNA with the Sequence: AUG-ACU-UCC-GCU-ACC-UGA-ATT?
9.Do you feel that the safety and ethical concerns have been addressed fully by the scientific community to allow these food materials to enter the food supply?
10.Discuss some of the current day uses of DNA technology.
In: Biology
Life has been found on a newly discovered planet not too far from our solar system! The planet is named Nairb. A mission was sent to Nairb to learn more about these new life forms and the following data was obtained. The life forms on Nairb have a similar appearance to those of earth. These new life forms are also composed of many very similar molecular building blocks to life forms on earth, for example: amino acids and lipids are the same. However, there is one huge difference: on Nairb cells have the nonpolar solvent hexane substituted in the place of water. How would Nairb would differ from that of earth.
a) What would the structure of membranes would be like in the cells of life forms on Nairb?
b) What would the structure of transmembrane proteins be like in cells on Nairb?
c) What would the structure, folding, and primary sequence of a ‘soluble’ (free in solution) protein be like in cells on Nairb?
In: Biology
1. Which of the following is a common way in which genes in a population change?
A) injury
B) aging
C) sexual reproduction
D) natural selection
2. The Drake equation estimates the:
A) number of planets hosting life in the Milky Way.
B) number of technologically advanced civilizations in the Milky Way.
C) likelihood of observing a signature of life around a star.
D) likelihood of observing a radio signal from an extraterrestrial civilization.
3. Of the following, which is the most UNCERTAIN factor in the Drake equation?
A) the average number of planets around a star
B) the average fraction of planets inside a star’s habitable zone
C) the average lifetime of a star
D) the fraction of life-bearing planets on which intelligence evolves
4. Which of the following have been shown experimentally to be easy to produce in an environment similar to early Earth?
A) self-replicating molecules
B) proteins
C) amino acids
D) RNA
In: Physics