IB myp 4-5 Biology – Practice Questions- All Topics
Topic :Metabolism-Circulation,Transportation and Translocation
Topic :Metabolism– Weightage : 21 %
All Questions for Topic : Nutrition,Digestion,Biochemistry and enzymes,Movement and transport,Diffusion,Osmosis,Gas exchange,Circulation,Transpiration and Translocation,Homeostasis
Question:
Formulate a hypothesis regarding which of these extra structures are needed in the cells below so they can perform their functions:
a) Cells forming the lining of the small intestine, where digested foods are absorbed.
▶️Answer/Explanation
Ans: Microvilli, vesicles, pseudopodia.
b) White blood cells that fight disease by moving into infected tissue and engulfing the organisms causing the infection.
▶️Answer/Explanation
Ans: Lysosomes, actin and myosin filaments, pseudopodia.
c) Neurons that transmit nerve impulses and send signals across synapses from one neuron to another.
▶️Answer/Explanation
Ans: Vesicles.
d) Cells that develop into hair or nail.
▶️Answer/Explanation
Ans: Keratin fibres, microtubules.
Question:
What are the units of wind speed?
▶️Answer/Explanation
Ans: Meters per second (m s–1).