Compare how components of pyrimidine and purine bases are excreted from the mammalian organism. What has to happen to each for excretion?
In: Biology
What steps are needed to make UMP into dTMP? Write out each step, using standard abbreviations for the nucleotides, and including co-substrates that make sense or are specifically needed (for each step).
In: Biology
Topic: Commercial energy production
After learning about so many different options for commercial energy production, what do you think is best? You must support your argument with facts you have learned. This requires a 250 word minimum to answer
In: Biology
Create a thermodynamic argument for how ATP hydrolysis can be coupled to drive endergonic reactions.
In: Biology
Explain the different steps leading a 7 pass transmembrane receptor protein being exposed on the plasma membrane. You will start as the mRNA encoding for this protein was just exported outside of the nucleus.
In: Biology
If you add 100 ml of 50X TAE to 900 ml of water
a. What dilution did you perform?
b. Did you dilute the concentrated TAE to 1X?
c. What dilution is required to get to 1X?
d. To make 500 ml of 1X TAE Buffer, add _____ml of 50X TAE to _____ml of water
In: Biology
Describe transition state theory and how it applies to enzyme catalysis. Why is a transition-state analog not necessarily the same as a competitive inhibitor?
In: Biology
In elephants, the allele for the prehensile trunk, T is dominant over the allele for a non-grasping trunk, t; the allele for floppy ears, E is dominant over the allele for pointy ears, e; and the allele for pointy tusks, P is dominant over the allele for blunt tusks.
If you were to cross a trihybrid elephant with a pure-breeding elephant with a prehensile trunk, pointy ears, and blunt tusks, what proportion of the offspring would have a genotype of TtEepp?
Please show your work
a) 0 (that genotype cannot be formed by this cross)
b) 1/8
c) 1/4
d) 1/2
e) 9/16
In: Biology
In: Biology
Please provide a presentation, in table form, of the primary tissue types found in plants. Include the cell types making up each tissue type and provide a description of the tissue/cells and the function of the tissue. Make sure to include: dermal, ground and vascular, epidermal, parenchyma, collenchyma, sclerenchyma, xylem, phloem, vessels, tracheids, sieve tube elements, companion cells, fibers, sclereids.
In: Biology
Why do we call water the universal solvent? All life, as we know it, needs water. What is the importance, relative to water being a universal solvent, to living systems?
In: Biology
How do molecules like pyruvate, phosphate, ADP, and ATP get into the mitochondria matrix?
In: Biology
In only 3 sentences, compare and contrast the following:
a) CAM and C4 plants
b) Micronutrients and macronutrients (with examples)
c) Apical meristems and lateral meristems
In: Biology
In what experiment situation would the techniques of confocal microscopy, transmission
electron microscopy, and scanning electron microscopy be best used? What types of
information could you receive from each?
In: Biology
Ketone bodies are synthesized from acety-CoA only when carbohydrates are not available. Why is this the case? Consider how gluconeogenesis, TCA, ACC, and circulating hormones play a role in directing carbon toward these molecules.
In: Biology