iGCSE Biology Questions

Pranali Amlani
Quiz by Pranali Amlani, updated more than 1 year ago
Pranali Amlani
Created by Pranali Amlani about 5 years ago
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Quiz on iGCSE Biology Questions, created by Pranali Amlani on 11/25/2014.
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Resource summary

Question 1

Question
What does the nucleus do?
Answer
  • It controls all the activities of the cell and it contains genes on the chromosomes that carry the instructions for making the proteins needed to build new cells or new organisms.
  • The place wehere respiration is carried out.
  • Respiration occurs in the mitochondria, not the nucleus.

Question 2

Question
What do the plant cells contain that the animal cells do not?
Answer
  • Cell walls, chloroplasts and permanent vacuoles.
  • Ribosomes, chloroplasta and cells walls.

Question 3

Question
What is the definition of diffusion?
Answer
  • Diffusion is the net movement of particles from an area of high concentration to an area of low concentration, down the concentration gradient.
  • Diffusion is the net movement of particles from an area of low concentration to an area of high concentration, up the concentration gradient.

Question 4

Question
What is the formula for net movement?
Answer
  • paticles moving in-particles moving out
  • total particles-particles moving out

Question 5

Question
Red blood cells do not have a nucleus so that there is more space for haemoglobin to be stored. True or false?
Answer
  • True
  • False

Question 6

Question
A solution is made up of 2 parts. A solute and a solvent. A solvent dissolves in a solute.
Answer
  • True
  • False

Question 7

Question
What is the difference between a concentrated solvent and a dilute solvent?
Answer
  • A concentrated solvent has little solute dissolved in it and a dilute has a lot.
  • A concentrated solvent has a lot of solute dissolved in it and a dilute has only a little.

Question 8

Question
What is osmosis?
Answer
  • A special kind of diffusion invloving water molecules.
  • The name of the topic in which diffusion is a part of.
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