1.1 Cell structure

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

Question 32

Medium49%

A student prepared a slide of human cheek epithelial cells (animal cells) to view under a light microscope.

Name two pieces of laboratory equipment or consumables the student would use to safely prepare and stain this slide.

[2]

Below is a diagram of a light microscope:

A line diagram of a laboratory light microscope. Arrow A points to the eyepiece lens, Arrow B points to the stage, and Arrow C points to the coarse focus knob.

Name Part B and describe its function.

[2]

Compare the structure of an animal cell (such as a cheek epithelial cell) with the structure of a plant cell (such as a palisade mesophyll cell).

[4]

When a red blood cell (an animal cell) is placed in distilled water, it swells and bursts (lysis). However, when a plant cell is placed in distilled water, it becomes turgid but does not burst.

Explain why water enters these cells, and why the plant cell is prevented from bursting.

[2]

1.1 Cell structure

Question 32

1.1 Cell structure Questions

1.1 Cell structure

Question 32

1.1 Cell structure Questions