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WorksheetsCell Membrane and Transport Quiz
Total questions: 20
Worksheet time: 10mins
The basic structure of cell membrane is
Lipoprotein bilayer
Phospholipid bilayer
Glycoprotein layer
Protein bilayer
Simple diffusion occurs through cell membrane due to
ATP utilization
Carrier protein
Concentration gradient
Electrical potential only
Which of the following substances crosses cell membrane by simple diffusion?
Glucose
Amino acids
Oxygen
Sodium ions
Facilitated diffusion differs from simple diffusion because it
Requires ATP
Occurs against gradient
Uses carrier proteins
Is temperature independent
Which of the following is a characteristic of facilitated diffusion?
No saturation
No specificity
Saturation phenomenon
Energy dependent
Active transport is defined as transport
Along concentration gradient
Without carrier proteins
Against concentration gradient using energy
Through lipid bilayer
Primary active transport uses energy derived directly from
ADP
ATP hydrolysis
Concentration gradient
Osmotic pressure
Sodium–potassium pump transports
2 Na⁺ out and 3 K⁺ in
3 Na⁺ out and 2 K⁺ in
3 Na⁺ in and 2 K⁺ out
Equal Na⁺ and K⁺ ions
Sodium–potassium pump is an example of
Facilitated diffusion
Secondary active transport
Primary active transport
Simple diffusion
Secondary active transport depends on
ATP directly
Na⁺ concentration gradient
K⁺ gradient
Osmotic pressure
Co-transport means movement of two substances
In opposite direction
In same direction
Without carrier protein
Through lipid bilayer
Counter-transport refers to movement of substances
In same direction
Without energy
In opposite directions
Through channels only
Osmosis is diffusion of
Solute through membrane
Water through semipermeable membrane
Ions through channels
Proteins through carriers
Aquaporins are
Carrier proteins for glucose
Ion channels
Water channels
Enzymes
A red blood cell placed in hypotonic solution will
Shrink
Remain unchanged
Swell and hemolyse
Undergo crenation
Filtration occurs mainly due to
Osmotic pressure
Active transport
Hydrostatic pressure
ATP hydrolysis
Endocytosis is transport of substances
Out of the cell
Across membrane by diffusion
Into the cell by vesicle formation
Through channels
Phagocytosis involves uptake of
Liquids
Gases
Large solid particles
Ions
Exocytosis is important for
Absorption of glucose
Secretion of hormones
Diffusion of gases
Ion transport
Carrier-mediated transport shows all EXCEPT
Specificity
Saturation
Competition
Linear increase with concentration
