Biology Answers

Explain why gluconeogenesis is not the mere reversal of glycolysis. Give at least three reasons to support your answer.

Your answer must include the terms, endergonic, exergonic, reciprocal regulation and futile cycle.

Explain how giving an alcoholic patient who has hypoglycemia an IV infusion of glucose alone can be fatal.

if the grwoth rate of a population of 1500 is 15%, what is the population growth after one year?

a) 15

b)150

c)225

d)1725

1. c)  Assume the population of Bacteria B completely dies off. Bacteria A are now transferred to an open environment where they have lots of room for growth and a continual supply of food. Over the course of three days, the population of bacteria steadily increases as follows:

Day 1: 1500 bacteria

Day 2: 3000 bacteria

Day 3: 7000 bacteria

Day 4: 13,000 bacteria

Is this population of bacteria r-selected or k-selected? Explain how you arrived at your answer. Hint: Review your definitions of “r” and “k.” (2 marks)

What is the principle of the dextrose broth test (a biochemical test)? is it to test the ability to utilize dextrose as carbon source? but can I have an in-depth elaboration/explanation about this test?

what is geological time scale? describe the events that mark the divisions between the eras?

explain the first gene map of chromosome of drosophila by alfred strurtevants?

Q01: In a breeding experiment a pure bred black rabbit was crossed with pure bred white one. All the F1

offspring were black.

(a) Explain this information by means of a genetic diagram.

(b) If the F1 generation were allowed to interbreed, what proportion of the F2 generation would be

expected to be heterozygous.

(c) If you were given a black rabbit, how would you attempt to find out whether it is heterozygous

or homozygous?

Can you describe the four basic mechanisms by

 which solute molecules move across membrane?

1.     Define demography. (1 mark)

Demography is statistical study of population changes over time: birth rates, death rates, migration rates etc. 

is this an okay answer? please let me know. thank you.