GLUT2 transporters are continuously present in high concentration in the membranes of which one below ?

Pancreatic beta cells

Pancreatic alpha cells

Muscle cells

Adipose cells

Hepatic cells

Why would maintaining high levels of progesterone prevent ovulation.

Explain how the ovum prevents polyspermy.

what creates the energy driving force for the tubular reabsorption of water soluble substances like glucose and amino acids

the na/k atpase at the apical membrane
the na symporters at the apical membrane
the na symporters at the basolateral membrane
the na/k atpase at the basolateral membrane

1H Part 1 How do the kidneys assist the body in maintaining homeostasis in terms of fluid levels and hydration?

1H Part 2 How do the kidneys assist the body in maintaining homeostasis in terms of its blood pH level?

1H Part 3 How do the kidneys assist the body in maintaining homeostasis in terms of the body’s ion and electrolyte balance?

1H Part 4 How do the kidneys assist the body in maintaining homeostasis in terms of blood pressure?

1H Part 5 What substances do the kidney’s filter and what is the name of the bi-product they create in doing so?

1H Part 6 What part/s of the urinary system is responsible for carrying the bi-product (created by the kidney in filtering other substances) to the urinary bladder?

1H Part 7 What part of the urinary system is responsible for carrying the bi-product (created by the kidney in filtering other substances) from the urinary bladder to the opening where it can be eliminated from the body?

In which direction will CO2 flow if the PCO2 in the alveoli were normal and PCO2 in the venous blood entering the lungs were 30 mmHg?

a) CO2 will diffuse out of the pulmonary capillaries, and into the alveoli.

b) CO2 will diffuse out of the alveoli, and into the pulmonary capillaries.

c) No net diffusion of CO2 will occur because the partial pressures of CO2 within the tissues and systemic capillaries are at equilibrium. d) It cannot be determined without knowing the partial pressures of O2 and H2O, within the tissue and systemic capillaries as well.

A student takes a normal breath in. He then inhales as deeply as possible until he cannot inhale anymore. The amount of air that he breathed in after the normal breath is his ____________.

a) inspiratory capacity.

b) inspiratory reserve volume.

c) tidal volume.

d) vital capacity.

What would you expect to happen to the lungs if intrapleural pressure were the same as atmospheric pressure?

a) The lungs would collapse.

b) The lungs would expand.

c) The lungs would maintain their normal volume.

4) Which of the following is NOT involved in creating a pressure gradient during breathing? (1.5 pts)

a) Changes in the volume of the alveoli

b) Changes in the volume of the conducting system

c) Changes in the volume of the thoracic cavity

d) Movement of the diaphragm

e) Movement of the rib cage

Describe, in order, the events that create a local potential that (a) doesn’t result in an action potential, and (b) does result in an action potential.

one page visual/summary of aerobic cellular respiration following the fate of carbon, and energy (NADH/FADH, and ATP

5. Identify any one (1) genetic disorder not caused by nondisjunction. Explain why.

6). Given that Phenylketonuria (PKU) is inherited as a recessive trait. What is the chance for two heterozygous parents to have a phenylalanine-sensitive child? Explain.

7). Given a mating between a non-hemophiliac male & a heterozygous female what is the probability for a hemophiliac female child? Explain.

8). Given a mating between an albino male & a carrier female, what is the probability for a child who is a carrier for albinism? Explain.

Briefly describe both the macro and micro (cellular) anatomy of a skeletal muscle.

Part Three: Acid/Base Homeostasis in the Human Body

Beginning Questions:

1. Carbon dioxide is formed during cellular respiration and then diffuses out of cells into the interstitial fluid and then into the bloodstream. Most of the carbon dioxide is transported in our blood as bicarbonate. Write the chemical equation for the formation of bicarbonate and hydrogen ions from carbon dioxide and water below.

2. Under which of the following situations would the formation of bicarbonate and hydrogen ions be greater? Circle your answer.

At Rest After Exercise

Change in pH after exercise.

Calculate the percentage change in pH for both procedures and record your values in the table below

• % change in pH = ((control pH – experimental pH)/control pH) * 100

Questions:

1. Explain how blowing air into water caused the change in pH.

2. Describe why exercise caused the observed change in pH.