Hello :) Can someone please help me with this biology homework? Which of the fol

Question

Hello :) Can someone please help me with this biology homework?

Which of the following statements is(are) true?

A. A solution which is isotonic, relative to plasma, have the same osmotic pressure as plasma.

B. A solution which is hypotonic, relative to plasma, will increase the osmotic pressure of the body water (when ingested).

C. A solution which is hypertonic, relative to plasma, will decrease the osmotic pressure of the body water (when ingested).

D.         All of the above are correct.

   Phospholipids

            A. are proteins.

            B. are amphipathic.

            C. are amino acid polymers.

            D. All of the above are correct.

Which of the following is true concerning pH?

            A. The pH of plasma is slightly acidic.

            B. The pH of body fluids is slighty alkalinie.

            C. The pH of the body fluids increases during exercise.

            D. The pH of the urine increases during exercise.

The production of glycogen within our liver and skeletal muscle cells requires what type of reaction?

A. Dehydration

B. Hydrolysis

C. Ionic

D. Dissociation

Which of following statements is true?

A. Polar molecules cannot simply diffuse across the cell membrane.

B. Non-polar molecules cannot simply diffuse across the cell membrane.

C. Polar molecules cannot enter the extracellular space.

D. Non-polar molecules cannot enter the extracellular space.

Which of the following statements is correct?

            A. Solutes increase the freezing point of water.

            B. Solutes decrease the freezing point of water.

            C. Only ions can dissolve in the body water.

D. Increasing the concentration of water will increase the osmotic pressure of a solution.

Explanation / Answer

1. A. A solution which is isotonic, relative to plasma, have the same osmotic pressure as plasma.

2. B. Amphipathic

3. B. The pH of body fluids is slighty alkaline

4. B. Hydrolysis

5. Polar molecules cannot simply diffuse across the cell membrane

6. B. Solutes decrease the freezing point of water.

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