WorksheetsQuiz on Active and Vesicular Transport
Total questions: 15
Worksheet time: 8mins
What is the primary source of energy for primary active transport?
Sunlight
Concentration gradient
Hydrolysis of ATP
Kinetic energy
Which ions are moved by the Na+/K+ pump?
3 Na+ ions in, 2 K+ ions out
2 Na+ ions out, 3 K+ ions in
3 Na+ ions out, 2 K+ ions in
2 Na+ ions in, 3 K+ ions out
What type of transport involves the movement of glucose into cells lining the small intestine?
Primary active transport
Symport cotransport
Antiport transport
Facilitated diffusion
What is the role of digitalis in cardiac muscle cells?
Decreases intracellular sodium concentration
Inhibits glucose transport
Speeds up the Na+/K+ pump
Increases intracellular calcium concentration
Which process involves the ingestion of solid particles by cells?
Phagocytosis
Exocytosis
Pinocytosis
Receptor-mediated endocytosis
What is the main function of exocytosis?
To bring substances into the cell
To release substances from the cell
To transport ions across the membrane
To synthesize ATP
Which type of endocytosis is selective for specific molecules?
Pinocytosis
Receptor-mediated endocytosis
Exocytosis
Phagocytosis
What is the primary function of the plasma membrane?
To produce energy
To store genetic information
To act as a sieve due to selective permeability
To synthesize proteins
What is the charge of the intracellular fluid near the plasma membrane?
Positively charged
Varies with cell type
Negatively charged
Neutral
What is the role of liposomes in drug delivery?
To decrease drug absorption
To enhance drug metabolism
To prolong circulation and reduce toxicity
To increase drug solubility
Which of the following is NOT a type of vesicular transport?
Endocytosis
Exocytosis
Facilitated diffusion
Phagocytosis
What is the main component of the cytosol?
Lipids
Proteins
Water
Carbohydrates
Which of the following is a function of the electro-chemical gradient?
To drive physiological processes
To produce lipids
To store genetic information
To synthesize proteins
What is the membrane potential range across the plasma membrane?
-20 to -200 mV
0 to 100 mV
-100 to 0 mV
100 to 200 mV
Which molecule is transported into cells via Na+ symports?
Cholesterol
Potassium
Glucose
Calcium
