Quiz on Transport Mechanisms and Copper

Passive transport requires?

• Energy

• Carrier protein

• ATP

• None of the above

Which is an example of passive transport?

• Endocytosis

• Na⁺/K⁺ pump

• Osmosis

• Phagocytosis

Selectivity of membrane transport depends on?

• Lipid solubility only

• Charge only

• Size and charge of molecule

• Concentration only

Which of the following is a uniport transporter?

• Na⁺/K⁺ ATPase

• GLUT1

• Sodium-glucose symporter

• H⁺/K⁺ exchanger

Symport transports?

• One molecule at a time

• Molecules in opposite direction

• Molecules in same direction

• Molecules without gradient

Antiport is best exemplified by?

• GLUT4

• SGLT-1

• Na⁺/K⁺ ATPase

• Aquaporins

Copper is primarily absorbed in the?

• Stomach

• Duodenum

• Jejunum

• Colon

Daily recommended intake (RDA) of copper in adults is?

• 0.1–0.3 mg/day

• 0.5–1 mg/day

• 2–3 mg/day

• 8–10 mg/day

Copper is required for the activity of?

• Catalase

• Cytochrome oxidase

• Pepsin

• Trypsin

Copper deficiency leads to?

• Wilson's disease

• Menkes disease

• Goitre

• Rickets