Science Coordinate 0654: B8. Gas exchange and respiration Topical Past Paper Questions
Cambridge IGCSE Science Coordinate (0654) past-paper questions on B8. Gas exchange and respiration, free. This topic is frequently examined across 23 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates respiration in peas. (a) The student assembles the airtight apparatus shown in Figure 1.1. Figure 1.1 The student: • ensures the clip is closed • records the position of the drop of coloured liquid every 15 minutes for 60 minutes. Figure 1.2 shows the posit…
Yeast is a unicellular organism that respires. DCPIP is an indicator that turns from blue to colourless when respiration takes place. When DCPIP is added to yeast cells the rate of colour change is an indication of the rate of respiration. Plan an investigation to determine the e…
(a) Scientists estimate the percentage of energy used from anaerobic respiration and aerobic respiration as the intensity of exercise increases. Fig. 10.1 is a graph of the results. percentage of energy used --■-- percentage of energy used from anaerobic respiration Fig. 10.1 (i)…
Sign in required
Full B8. Gas exchange and respiration question set, mark schemes and AI worksheets
Log in for the full topic-segregated question set, mark schemes, and AI worksheets built from every Science Coordinate past paper. New accounts start with 25 free credits.
Explore all Science Coordinate topics
All Science Coordinate topics