What is the likely scenario that will happen if the Oxygen Transfer Rate in the reactor is smaller than the Oxygen Uptake Rate (e.g. what will happen to your cells, doubling time and so on)?

Write an short essay abouy How can enzymes speed up the metabolic reactions

One A4 page
No copy-paste from the internet(own sentences)

Explain how the relative position of microbial communities within sediment profiles is likely to change as a result of seasonal inundation in wetland ecosystems.

52. Catabolism of fatty acids stimulates gluconeogenesis in all of the following ways EXCEPT:

1. By contributing to the production of NADH
2. By providing carbons for the glucose skeleton
3. By activating pyruvate carboxylase
4. By contributing to the production of ATP
5. By producing Acetyl-CoA

55. [NADPH/NADP+] is maintained at a high level in cells primarily by:

1. Lactate dehydrogenase
2. The combined actions of glucose -6 phosphate dehydrogenase and gluconolactonase
3. The action of the electron transport chain
4. Shuttle mechanisms as the α-glycerophosphate dehydrogenase shuttle
5. The combined actions of transketolase and transaldolase

56. If a cell requires more ribose-5-phosphate than NADPH:

1. Only the first phase of the pentose phosphate pathway would occur
2. Glycolytic intermediates would flow into the reversible phase of the pentose phosphate pathway
3. There would be sugar interconversions but no net release of carbons from glucose-6- phosphate
4. The equivalent of the carbon atoms to glucose-6-phosphate would be released as 6CO₂
5. Only part of this need could be met by the pentose pathway and the rest would have to be supplied by another pathway.

26. Which one of the following is NOT characteristic of the hexose monophosphate pathway?

1. It produces CO₂
2. It uses NADP⁺ as a cofactor
3. It produces ATP
4. It produces ribose-5-phosphate
5. It produces glyceraldehydes-3-phosphate

27. A person with less than 10% of the normal amount of glucose-6-phosphate dehydrogenase would likely :

1. Be at risk for hemolytic anemia and persistent chronic infections.
2. Be unable to produce sufficient  levels of pentoses for nucleic acid synthesis
3. Have a glycogen storage disease.
4. Have a fatty liver
5. Have a reduced ability to produce NADP

28. When the PLC second messenger system is activated, which of the following causes an increase in intracellular Ca²⁺?

1. Phosphatidyl inositol (PI)
2. Phosphatidylnositol-4-phosphate(PIP)
3. Phosphatidylinositol 4,5- biphosphate(PIP₂)
4. Inositol triphosphate(IP₃)
5. Diacylglycerol

Lactate concentration in the blood rises rapidly during hard running. After running, the blood concentration drops slowly. Describe why the lactate concentration increases and why it decreases.

Choose 2 (TWO) of the following PAIRS of terms related to PLANTS to compare and contrast (this means that you need to explain both shared features and distinguishing features in the pair). You also need to include at least ONE specific phylum for each term.
For example: microgametophyte and megagametophyte: These terms refer to organisms found in the 4 phyla of the the Gymnosperms and the Anthophyta in the plant Kingdom. The microgametophyte is contained within the pollen grain and contains the sperm and the megagametophyte contains the egg and is enclosed in integuments. They are both produced by different types of spores (microspores vs. megaspores) .

Choices: CHOOSE TWO PAIRS

• homospory and heterospory
• ovary and ovule in plants
• Archegonia and antheridia
• seed and spore

Severe dieting results in both the reduction of fat stores and the loss of muscle mass. From your understanding of Biochemical pathways, explain how this observation occur?

1.) Explain how combinatorial control makes it possible to have far fewer transcription factors than the number of genes that are transcriptionally regulated.

2.) If a miRNA were 5 nucleotides long, what is the chance of finding a complementary sequence in a randomly selected 5 nucleotide sequence in mRNA? [Assume mRNA sequences to be random and that mRNAs have an equal amount of each nucleotide (A, U, G, and C)]. If an miRNA were 10 nucleotides long, what is the chance of finding a complementary sequence in a randomly selected 10 nucleotide sequence in mRNA? If you were designing a synthetic miRNA to specifically target a particular mRNA, would you want to design a 5 or 10 nucleotide long miRNA? Why?

3.) In the fungus Neurospora crassa, roughly 2 – 3% of cytosines are methylated. Researchers isolated Neurospora DNA sequences that contained 5-methyl cytosine and found that almost all methylated sequences were located in inactive copies of transposable elements. On the basis of these observations, propose a possible explanation for why Neurospora methylates its DNA and why DNA methylation in this species is associated with transposable elements.

4.) Some cases of bacterial gene regulation involve use of alternative transcriptional terminators. Propose a plausible way that a riboswitch could function in the use of alternative bacterial transcriptional terminators.

Meternal and child undernutrition contribute to deficits in children's development and health and productivity in adulthood. Discuss this statement.

Back up the argument with evidence and health and economic data.

Address all part of the statement with referances.

Roger is a 25 year old astronaut who is travelling to another planet in a one-man spaceship. While in space, the capsule become partially depressurised.

Using your knowledge of internal and external respiration (M2L4), please answer the following questions below. Be sure to clearly label the different parts.

Part A. Describe with details how Henry's law relates to external respiration (1.5 marks)

Part B. How does the reduction in partial pressure in the spaceship affect Roger's oxygen uptake? Explain your reasoning. (1 mark)

Part C. Against all odds, Roger makes it to a new planet but carbon dioxide is less soluble on this planet. How will this affect Roger’s ability to breathe? (1 mark)

Summarize the following topics briefly:

Oceanic Alveolates

Protista classficiation

Stramenophiles and global warming

Traits that distinguish charophytes from land plants

Traits charophytes share with land plants

Advantages of seeds over spores

How Gluconeogenesis is regulated allosterically by and hormones? In your answer, show the importance of this pathway, location(s), enzymatic requirements and starter substrates to be used.

Q) Make a Contemporary Issues Report , must be 3 to 4 pages containing

a. Introduction (definition of contemporary issues and selected subjects)

d. Contemporary Issues List (at least 5 new subjects)

e. Selected Subject Explain with a Conclusion (at least four pages).

f. References

please with some research fulfill all the above mentioned needs and make a proper report with headings.

THANKYOU

TOPIC :- Abortion