Felpham Science KS3 Quiz week 3

what is the term given to the collection of small cellular 'machines' which each have a function in keeping the cell alive and performing its functions?

• organ

• organelle

• tissue

• ribosomes

which part of a plant cell is made of cellulose?

• cell membrane

• nucleus

• mitochondiria

• cell wall

which process is unique to plant cells and NOT something which animal cells can perform?

• diffusion

• respiration

• photosynthesis

• cell apoptosis

what is the role of a red blood cell?

• to carry water around the body

• to carry oxygen around the body

• to transport waste to the kidneys

• to destroy invading pathogens

it is said that out bodies are made of

• thousands of cells

• millions of cells

• billions of cells

• trillions of cells

what is the function of the cell membrane?

• performs respiration and therefore releases energy

• contains the DNA of the cell

• controls the cell's reactions to the external environment

• allows substances in and out of the cell

what is the role of the mitochondria?

• performs respiration and releases energy for the cell

• contains the cells DNA

• performs photosynthesis

• synthesises proteins

what is the role of ribosomes?

• performs respiration for the cell

• contains the cell's DNA

• synthesises proteins

• performs photosynthesis

the cell membrane is made of proteins and phospholipids. the head end is said to by 'hydrophilic'. What does the word 'hydrophilic' mean?

• it likes water

• it doesn't like water