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Cell Membrane Transport Quiz

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Questions and Answers

What are the types of passive transport across the cell membrane?

H2O, Gases (O2, CO2, N2), Lipids

Diffusion, Osmosis, Facilitated diffusion (correct)

Water channels, ion channels, solute carriers

Pumps, phagocytosis, Endocytosis/exocytosis

What is the cell membrane permeable to?

Pumps, phagocytosis, Endocytosis/exocytosis

Small, charged molecules

$H_2O$, Gases (O2, CO2, N2), Lipids (correct)

$H_2O$, Large molecules such as amino acids, glucose and larger

What drives the movement of compounds across the cell membrane?

Both chemical and electrical forces (electrochemical force) (correct)

Movement from an area of high concentration to low concentration

$H_2O$, Gases (O2, CO2, N2), Lipids

Positive ions are attracted to negative ions and vice versa

What are factors affecting the rate of transport across the cell membrane?

The concentration gradient, The compound permeability to the membrane, The type and number of charges present on the compound Signup and view all the answers

What are examples of active transport across the cell membrane?

$Pumps$, phagocytosis, Endocytosis/exocytosis Signup and view all the answers

What is creatinine clearance used to estimate?

Glomerular filtration rate (GFR) Signup and view all the answers

What can early detection of kidney disease help prevent or delay?

Development of complications associated with kidney disease Signup and view all the answers

What does creatinine clearance provide information about?

Efficiency of kidney waste product filtration Signup and view all the answers

What does impaired kidney function lead to in terms of creatinine clearance?

Decreased creatinine clearance Signup and view all the answers

What is important to note about creatinine clearance as an estimation?

It may not provide a complete picture of kidney function Signup and view all the answers

Study Notes

Passive Transport Across the Cell Membrane

Types of passive transport: diffusion (simple and facilitated), osmosis, and filtration
Cell membrane is permeable to: small, non-polar molecules, oxygen, carbon dioxide, and water

Movement of Compounds Across the Cell Membrane

Movement driven by: concentration gradient, temperature, and pressure

Factors Affecting Rate of Transport

Factors affecting rate of transport: concentration gradient, surface area, temperature, and membrane permeability

Active Transport Across the Cell Membrane

Examples of active transport: pumps (e.g., sodium-potassium pump), endocytosis, and exocytosis
Active transport requires energy (ATP)

Creatinine Clearance

Creatinine clearance used to estimate: glomerular filtration rate (GFR)
Early detection of kidney disease helps prevent or delay: kidney failure, cardiovascular disease, and other complications
Creatinine clearance provides information about: kidney function and GFR
Impaired kidney function leads to decreased creatinine clearance
Important to note: creatinine clearance is an estimation and may not reflect actual GFR

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Description

Test your knowledge on the different types of cell membrane transport, factors affecting transport, passive and active transport, and membrane transport proteins. Learn about the factors that influence the movement of substances across the cell membrane.