Cell Structure and Function MCQ Quiz: GKFix - Bridge of Knowledge - Page 250

Question 1246

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What is the main driving force behind passive transport?

Electrical current
Temperature alone
ATP hydrolysis
Concentration gradient

Question 1247

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What does the term 'selective permeability' refer to in relation to the cell membrane?

Ability to change shape
Ability to divide
Ability to generate electricity
Ability to regulate what enters and exits the cell

Question 1248

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What is the major difference between the primary and secondary cell wall composition?

Primary wall contains lignin
Secondary wall contains cellulose only
Primary wall contains pectins only
Secondary wall contains lignin

Question 1249

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What is the primary function of the primary cell wall?

Provide rigidity after growth stops
Store food reserves
Conduct photosynthesis
Allow for cell expansion during growth

Question 1250

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What distinguishes facilitated diffusion from active transport?

Type of molecules transported
Presence of proteins
Use of vesicles
Movement direction relative to gradient