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AQA B2 Flashcards
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- 1B2.1 Describe a nucleus and its function.Contains genetic material and controls the activity of the cell.
- 2B2.1 Describe cytoplasm and its function.a gel where most chemicals reactions occur; it contains enzymes to control the reactions.
- 3B2.1 Describe the cell membrane and its function.Holds the cell together and controls what goes in and out.
- 4B2.1 Describe Mitochondria and its function.Where most of the reactions for respiration take place; provides cell with the energy needed to work.
- 5B2.1 Describe a ribosome and its function.Where proteins are made in the cell (protein synthesis).
- 6B2.1 Describe a cell wall and its function.rigid structure made of cellulose, supports and strengthens the cell.
- 7B2.1 Describe a permanent vacuole and its function.Contains sap, a weak solution of sugar and salts.
- 8B2.1 Describe a chloroplast and its function.where photosynthesis occurs, contains chlorophyll that absorbs the light energy needed for photosynthesis.
- 9B2.1 Name a single-celled microorganism.-Yeast
-Bacteria - 10B2.1 What important component to bacteria cells not have, and what is the consequence?They do not have a nucleus, so genetic material floats in the cytoplasm.
- 11B2.1 What is a specialised cell?A cell that performs a specific function and has a special structure to aid it.
- 12B2.1 Name two specialised cells and how they are adapted for their functions.Sperm cells- long tail and streamlined head
red blood cells- biconcave shape, no nucleus, packed with haemoglobin - 13B2.1 What is diffusion?The spreading of particles from an area of high concentration to an area of low concentration.
- 14B2.1
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- Fichas sobre AQA B2 Flashcards, creado por taylorb11 el 08/11/2015.
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