EASY
Lower Secondary Stage 7
IMPORTANT
Earn 100
Explain one safety rule that you need to use when working with a microscope.
Important Questions on Living Things
MEDIUM
Lower Secondary Stage 7
IMPORTANT
Yeasts are tiny organisms made of only one cell. In an experiment, yeast cells were grown in tubes containing sugar dissolved in water. They made a gas. This was bubbled through limewater, which slowly became milky.
What was the gas? Give a reason for your answer.
EASY
Lower Secondary Stage 7
IMPORTANT
Yeasts are tiny organisms made of only one cell. In an experiment, yeast cells were grown in tubes containing sugar dissolved in water. They made a gas. This was bubbled through limewater, which slowly became milky.
What process produces this gas?
MEDIUM
Lower Secondary Stage 7
IMPORTANT
The drawing shows a specialised cell from a plant. Suggest the function of this cell. Explain the reasons.
