Cells and life
Answers are for parents and teachers.
1
Sort into unicellular and multicellular: a goat, a lemon tree, a yoghurt bacterium, a mushroom, a pond amoeba, a tomato plant.
Unicellular: yoghurt bacterium, pond amoeba. Multicellular: goat, lemon tree, mushroom, tomato plant.
2
Write the chain from cells to system for the lungs.
Lung cells, lung tissue, a lung (organ), the respiratory system.
3
Name two parts found only in plant cells and one found only in animal cells (out of the cells in the lesson).
Plant only: chloroplasts and a large vacuole. Animal only: centrosome.
4
A friend says a bacterium is a tiny plant. Reply to your friend.
A bacterium is neither a plant nor an animal. It is a prokaryote with no nucleus that has a membrane.
5
Write one hope and one question about stem cells.
Answers differ: a hope is understanding diseases; a question is about ethics and fairness.