GCSE B1 Attempt 1 - Samantha Motion | Library

1

How do mineral ions enter roots?

Diffusion

Osmosis

Active Transport

1

How are osmosis and diffusion different?

Osmosis only occurs in water.

Osmosis only occurs in water and moved through a semi-permeable membrane.

Osmosis occurs in fluids and moves from high to low concentration.

1

Define the function of a nucleus.

Controls the activity of the cell.

Controls what enters and leaves the cell.

Only contains genetic information.

1

How is a nerve cell adapted to its function?

Lots of mitochondria for respiration.

Long dendrites to carry electrical signals.

Good blood supply for respiration.

1

Which tissue in a plant is made of dead cells and carries water?

Phloem

Roots

Xylem

1

Which organelles are key to identifying if a cell is plant or animal?

Nucleus, cell wall, chloroplasts.

Vacuole, cell membrane, chloroplasts.

Vacuole, cell wall, chloroplasts.

1

Bacteria are an example of prokaryotic or eukaryotic cells?

Prokaryotic

Eukaryotic

Could be both

1

How would you avoid air bubbles under the cover slip when setting up a slide?

Use a mounted needle to lower the cover slip.

Carefully lower the cover slip.

Use two slides instead of a cover slip.

1

Name the five key parts of a microscope.

Stage, light, focuse, eyepiece, lens.

Stage, light, focus knob, eyepiece, lens.

Stage, light, focus knob, eyepiece, objective lens.

1

What is the equation for magnification?

Magnification = actual size / size of image

Magnification = size of image / actual size

Magnification = size of image x actual size