Plants Key Words. Flashcards
Glucose.
A simple sugar molecule.
Pore.
A very small hole.
Manure.
Waste organic material.
Root Hair Cells.
Specialised plant cells on roots.
Deficiency.
A lack of something, such as a nutrient.
Starch.
A large molecule made by plants as a form of food storage.
Iodine.
An orange coloured liquid used to test for starch.
Chlorophyll.
Green pigment in plants used in photosynthesis.
Cuticle.
Waxy, waterproof, protective outer layer of a leaf.
Concentration.
The number of particles packed into a certain volume.
Carbon Dioxide.
The gas in the air used by plants to make food. It is produced during respiration, by burning fossil fuels, or by acids reacting with metal carbonates.
Photosynthesis.
The process by which energy from sunlight, carbon dioxide and water, are used by green plants to produce glucose and oxygen.
Chemosynthesis.
Energy from chemicals is used to make food.
Hydrothermal vent.
Forms on the sea floor where there is volcanic activity.
Oxygen.
The gas in the air that is produced by plants, used during aerobic respiration and during combustion reactions.
Stomata.
The tiny pores on the underneath surface of a leaf- through which gases can move in and out.
Stoma.
A tiny pore on the underneath surface of the leaf- through which gases can move in and out.
Transpiration.
The movement of water in plants as it is taken up through the roots and released from the leaves as water vapour.
Guard cells.
Leaf cells on either side of the stoma which control its opening and closing.
Palisade Cell.
A long narrow plant cell packed with chloroplasts, and found in the upper part of the leaf.
Epidermis.
Single-cell thick transparent layer in the upper surface of a leaf.
Fertiliser.
Chemical applied to soil to increase soil fertility, and allow better crop growth of plants.
Rate.
A measure of speed or the number of times something happens in that set amount of time.
Spongy Cell.
A plant cell with a large surface area, large spaces around it and it is found in the lower part of the leaf.
