Cells and Microscopes

Which of the following cell structures are not found in animal cells?

• Cytoplasm

• Cell Membrane

• Vacuole

• Mitochondria

• Cell Wall

What does 'unicelluar' mean?

Euglena is a unicellular organism. Which feature of Euglena best shows its adaptation to life in water-based environment?

• Nucleus

• Flagellum

• Chloroplast

• Mitochondria

Choose the correct order for cell organisation.

• Cell > Organ > Organ System > Tissue

• Tissue > Cell > Organ > Organ System

• Cell > Tissue > Organ System > Organ

• Cell > Tissue > Organ > Organ System

Tick all the correct statements about how diffusion works in cells.

• Substances move from a high concentration to a low concentration.

• Diffusion allows the glucose and oxygen a cell needs to move across the cell membrane and into the cell.

• Substances move from a low concentration to a high concentration.

• Cells get rid of their waste products, like carbon dioxide, using diffusion.

Diffusion occurs in animals and plants.

• True

• False

Which parts of the microscope magnify the specimen on the slide?

Tick all the correct statements about microscopes.

• Microscopes need a light source so that we can see the object on the slide.

• Make sure to point the mirror at the sun.

• Adding a coloured die to the cells can make them easier to see under the microscope.

• Always turn the focusing knob so that the objective lens is moving away from the slide - we don't want to break the slide.

• Microscopes only magnify small things, they stop you seeing larger objects.