List the structures in a plant cell and explain what their function is. State which ones are also found in animal cells.
Dec 28, 2015
List the structures in a plant cell and explain what their function is.State which ones are also found in animal cells.
Parts of the Cell
Part Function Found inNucleus Controls the cell’s
functionsBoth
Cytoplasm Site of all the chemical reactions
Both
Cell Membrane Controls entry and exit of substances
Both
Vacuole Contains cell sap, gives support to the cell
Plant cells only
Chloroplasts Site of photosynthesis contain chlorophyll
Green plant cells only
Cell wall Gives shape to the cell, prevents lysis
Plant cells only
Diffusion is the movement of molecules from a high concentration to a low concentration until they are evenly spread out.Osmosis is the movement of water molecules from an area of high water concentration to an area of low water concentration through a selectively permeable membrane.
1. Write down the 6 stages of mitosis.2. Why is it important that the chromosome complement is
maintained?3. Why is mitosis important in unicellular and multicellular
organisms?
What are enzymes made from?What is the function of enzymes?Why are they called biological
catalysts?Why are they said to be specific?
Enzymes
• Are biological catalysts• Are found in all living cells• Are proteins• Are specific i.e. they only work on
one substrate• Catalyse synthesis and breakdown
reactions
What are the 2 possible reactions an enzyme can carry out and give an example of an enzyme, its substrate and its product for each.
Degradation – to break down
Amylase – starch into maltose
Synthesis – to build up
Phosphorylase – glucose-1-phosphate into starch
What is the equation for aerobic respiration?
What is the purpose of respiration?What are the waste products of
respiration?
• Glucose+ oxygen → CO2 + H2O + Energy
• Respiration is the release of energy from food using oxygen
• The waster products are carbon dioxide and water