Unit 1 Cells, exchange and transport (F211) - cells

Jenni
Quiz by , created about 4 years ago

Quiz on Unit 1 Cells, exchange and transport (F211) - cells, created by Jenni on 04/04/2015.

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Jenni
Created by Jenni about 4 years ago
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Question 1

Question
What is magnification ?
Answer
  • the degree to which the size of the an image is larger than the object itself. Expressed as x10
  • the degree to which it is possible to distinguish between two objects that are very close together.
  • the degree to which you can see the individual components of the cell

Question 2

Question
The light microscope can have a magnification of up to x 1500
Answer
  • True
  • False

Question 3

Question
The maximum resolving power of light is 2000mn
Answer
  • True
  • False

Question 4

Question
Why do sections of tissues need to be cut into thin slices for examination under a microscope
Answer
  • If the sample is too thick there would be too many cells overlapping each other so you would not be able to focus on the cells.
  • Light cannot penetrate thick slices of tissue, so no detail would be seen

Question 5

Question
what is the definition of staining (in microscopy)
Answer
  • any process that helps to reveal or distinguish different features.
  • The use of iodine to make transparent substances easier to see under a light microscope

Question 6

Question
Each type of organelle has a specific role in the cell what is this called
Answer
  • specialisation
  • differentiation
  • division of labour
  • ultrastructure

Question 7

Question
What are the features found in an animal cell.
Answer
  • Ribosome
  • Chloroplast
  • Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum
  • Mitochondrion
  • Nucleolus, nuclear envelope and nucleus
  • Cell Wall
  • Cell membrane
  • Golgi Apparatus
  • Vacuole
  • Lysosome