What the kidneys are doing to compensate for this condition

Question

Problem

I. i) For each substance, indicate whether the concentration of the substance will be higher or lower in urine than the concentration in plasma. Assume the kidneys are functioning normally.

Urea: [ Higher / Lower ] concentration in urine.
Glucose: [ Higher / Lower ] concentration in urine.
Proteins: [ Higher / Lower ] concentration in urine.

ii) For each substance above, explain why the concentration is different. (For example, is it because of glomerular filtration, reabsorption, or secretion, or some combination of processes?) each answer must explain exactly what is happening; naming a process

Urea:
Glucose:
Proteins:

II. Explain two reasons why maintaining a steady glomerular filtration rate is important.

III. A patient shows up at the hospital with a low blood pH and high levels of CO₂ and HCO₃^-.

i) These values indicate what condition?
ii) Identify and explain one reason why this condition could occur.
iii) Explain what the kidneys are doing to compensate for this condition.

IV. Explain two things that the reproductive system must do to create and maintain a healthy pregnancy. Each answer must demonstrate some understanding of how the reproductive system supports pregnancy.