Cells and life – practice for Years 6–9

Sample questions on Cells and life with the right answer and a worked solution, from easy to hard. In the Pickles Academy app a child gets new questions of the same kind every time, so they can't just learn the answers by heart.

Subject

Biology

Year

Years 6–9

Curriculum area

General biology and genetics

Question types: Cells YES/NO · Match the part of the cell

Sample questions

1. Question 1 Easy

   Decide whether each statement is true (YES) or not (NO).

   1. The cell is the basic unit of structure and function of living things.
   2. A human is made of a single cell.
   3. Mitochondria release energy from food.
   Show the solution

   Answer:

   1. The cell is the basic unit of structure and function of living things. – yes
   2. A human is made of a single cell. – no
   3. Mitochondria release energy from food. – yes

   How it works: 1. YES 2. NO – a human is a multicellular organism 3. YES

2. Question 2 Normal

   What does this part of the cell do? Match each item (1–4) with the right option (A–E).

   1. cell wall
   2. mitochondrion
   3. nucleus
   4. chloroplast

   • A) surrounds the cell and lets only some substances through
   • B) releases energy from food (respiration)
   • C) contains DNA and controls the cell
   • D) where photosynthesis takes place
   • E) strengthens and protects a plant cell
   Show the solution

   Answer:

   1. cell wall → E) strengthens and protects a plant cell
   2. mitochondrion → B) releases energy from food (respiration)
   3. nucleus → C) contains DNA and controls the cell
   4. chloroplast → D) where photosynthesis takes place

   How it works: cell wall – strengthens and protects a plant cell; mitochondrion – releases energy from food (respiration); nucleus – contains DNA and controls the cell; chloroplast – where photosynthesis takes place

3. Question 3 Hard

   Decide whether each statement is true (YES) or not (NO).

   1. Human sex cells have the same number of chromosomes as body cells.
   2. Protozoa are single-celled organisms.
   3. A plant cell has a cell wall.
   4. Bacteria have no nucleus.
   5. Antibiotics work against bacteria, not against viruses.
   Show the solution

   Answer:

   1. Human sex cells have the same number of chromosomes as body cells. – no
   2. Protozoa are single-celled organisms. – yes
   3. A plant cell has a cell wall. – yes
   4. Bacteria have no nucleus. – yes
   5. Antibiotics work against bacteria, not against viruses. – yes

   How it works: 1. NO – sex cells have half as many (23) 2. YES 3. YES 4. YES 5. YES

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