Cell Membranes and Transport
Quiz by Sarah Traverse
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20 questions
Show answers
- Q1What is the main component of the cell membrane?steroidsphospholipidstriglyceridespolysaccharides30s
- Q2The phospholipids in a membrane are arranged...in a double layer, tail to tailin a double layer, head to tailin a double layer, head to headin a single layer30s
- Q3Other than phospholipids, which other type of lipid can be found in membranes?cholesterol30s
- Q4Proteins which span the cell membrane are called...?extrinsicperipheralnon-polarintrinsic30s
- Q5Proteins which have carbohydrate attached to them are called...?glycoproteins30s
- Q6The layer of carbohydrate found on the outside of a cell membrane is called the...glycocalyx30s
- Q7Glycoproteins in membranes can act as...?receptors30s
- Q8Which one of these factors would not lead to an increase in the rate of diffusion?an increase in diffusion distancea decrease in the size of the moleculean increased surface areaan increase in temperature30s
- Q9Which of these substances cannot pass through the lipid bilayer by simple diffusion?oxygencarbon dioxideglucosesteroids30s
- Q10Which feature is common to both facilitated diffusion and active transport?they require energyproteins in the membrane are requiredthey occur down a concentration gradientthey occur against a concentration gradient30s
- Q1130s
- Q12Which of the following represents the direction that water would move by osmosis?From -200kPa to -100kPaFrom 200kPa to 100kPaFrom -100kPa to -200kPaFrom 100kPa to 200kPa30s
- Q13Which word represents solutions that have the same concentration?isotonic30s
- Q14Which word describes a plant cell that has lost an excessive amount of water?plasmolysed30s
- Q15Which of the following is not part of the mechanism to transport glucose from the gut into the blood stream?sodium-glucose cotransportersodium channelglucose transportersodium-potassium pump30s