Biology

• Xylem tissue transports water from the roots up to other parts of the plant.
• The roots absorb water and dissolved minerals.
• Phloem is a specialised tissue found in a plant's roots, stems and leaves. It transports amino acids and sugars by translocation.
• Xylem is a specialised plant tissue which transports water and minerals from the roots to the leaves by transpiration.
• A stem is a plant organ. It is made up of a group of tissues working together to perform a specific function.
• Tissue 2 is the palisade mesophyll layer where most chloroplasts are found.
• stoma - This is a tiny pore bordered by guard cells.
• Water loss in a plant is affected by the temperature of the surrounding air. If the temperature is decreased, the rate of water loss is decreased and the movement of the air bubble along the glass tube will be slower.
• Platelets are cell fragments found in the liquid part of the blood. They do not have a nucleus.
• Proteins are made from long chains of amino acids joined together. Proteins are also known as polypeptides.
• The enzyme amylase is produced in three places in the body; namely, the mouth, the small intestine and the pancreas.
• A protease enzyme is produced in the stomach.
• Lipase is an enzyme. The gall bladder is a storage organ. It does not make lipase.
• The liver is a gland accessory to the digestive system situated in the upper abdomen.