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Y1S1 013 III Physiology Review: Cellular Transport and Body Composition

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Y1S1 013 III Physiology Review: Cellular Transport and Body Composition

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Questions and Answers

What is the primary mechanism by which nonpolar molecules move through the plasma membrane?

Active transport using ATP

Facilitated diffusion

Simple diffusion through the double phospholipid layers (correct)

Simple diffusion through protein channels

Which of the following is a characteristic of active transport?

Movement of molecules against their concentration gradients (correct)

Movement of molecules down their concentration gradients

Movement of molecules from higher to lower concentrations

No expenditure of cellular energy

What is the primary force that pushes water out of the capillary into the tissues?

Osmotic pressure

Colloid osmotic pressure

Hydrostatic pressure (correct)

Blood pressure

What is the primary cause of oedema?

Decrease in colloid osmotic pressure or increase in hydrostatic pressure Signup and view all the answers

What is the role of the synapse in nerve transmission?

To transmit the signal from one neuron to another Signup and view all the answers

Which of the following ions is involved in the nerve action potential?

Sodium and potassium Signup and view all the answers

Y1S1 013 III Physiology Review: Cellular Transport and Body Composition

Choose a study mode

Podcast

Questions and Answers

What is the primary mechanism by which nonpolar molecules move through the plasma membrane?

Which of the following is a characteristic of active transport?

What is the primary force that pushes water out of the capillary into the tissues?

What is the primary cause of oedema?

What is the role of the synapse in nerve transmission?

Which of the following ions is involved in the nerve action potential?

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