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Unit 2 - Cell Structure
Animal cells never have cell walls.

Unit 2 - Cell Structure

Students of GCSE Biology will be expected to familiarise themselves with the various features of plant and animal cells, such as the nucleus or the mitochondria for example. This quiz on cell structure will help them to do just that.

In the early 1800s, Scottish scientist Robert Brown was examining plant cells under a microscope when he noticed that there was a similar structure in each and every cell he looked at. It had been seen before but it was Brown who first realised it was present in all plant cells, and he called it ‘the nucleus’.

We now know that animal and plant cells have many features in common - a nucleus, cytoplasm, mitochondria, ribosomes and a cell membrane. Plant cells have chloroplasts for photosynthesis, a permanent vacuole and a cell wall. Brown had no idea of the importance of the nucleus, or that it was also found in animal cells too, but scientists have gradually discovered more and more about how cells work.

To see a larger image, click on the picture.
1.
This is a picture of animal cells. Mitochondria are found in all plant and animal cells. What do mitochondria provide?
Energy
Life
Food
Water
Mitochondria provide energy so that the cell can do useful work
2.
At fertilisation, a sperm cell fuses with an egg cell. Which of these structures is never found in sperm or egg cells?
Photograph courtesy of Wikimedia Commons
Cytoplasm
Mitochondria
Ribosomes
Vacuole
These are a feature of plant cells - although they do occasionally occur in animal cells
3.
Chlostridium botulinum are dangerous and produce a toxin which can be fatal. Which type of cell are they?
Yeast
Bacteria
Animal
Plant
The waste products from bacteria can be toxic
4.
This is an image of a nucleus. What is the name of the chemical found inside the nucleus which contains the genetic code?
RNA
TRA
ZRA
DNA
DNA stands for Deoxyribo Nucleic Acid
5.
Which of these structures are located in all plant and animal cells and contain DNA?
Vacuoles
Chloroplasts
Ribosomes
Chromosomes
Chromosomes can be seen most clearly during cell division
6.
Plant cells are shown in this picture. What are the pale blue structures?
Photograph courtesy of Kristian Peters at Wikimedia Commons
Cell membranes
Cytoplasm
Cell walls
Chloroplasts
All plant cells have cell walls as well as cell membranes
7.
This is Spirogyra which is a type of alga found in ponds. What are the green structures within the cytoplasm?
Photograph courtesy of Frederic.marbach at Wikimedia Commons
Nucleus
Mitochondria
Chloroplasts
Ribosomes
Spirogyra is therefore a producer - it manufactures its own food
8.
All cells, including the bacteria shown here, contain ribosomes. What is the function of ribosomes?
Provide energy from respiration
Protein synthesis
Photosynthesis
Control activities of the cell
Many of the chemical reactions in a cell involve the creation of proteins
9.
This plant cell is packed with structures which make sugars by the process of photosynthesis. What are they called?
Photograph courtesy of Martin Bahmann at Wikimedia Commons
Chloroplasts
Chloroform
Chloride
Chloroblasts
They use light energy to combine water and carbon dioxide, forming glucose
10.
This is a diagram of an animal cell. Which of the following is not found in an animal cell?
Nucleus
Mitochondria
Cell wall
Cytoplasm
Cell walls are formed from cellulose and give plant cells both strength and shape
You can find more about this topic by visiting BBC Bitesize - Cell structure

Author:  Donna Maria Davidson

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