Term
|
Definition
• Movement
• Keeping warm
• Growth and Repair
• Fighting disease |
|
|
Term
| Chemical elements in commun for carbohydrates, fats and proteins |
|
Definition
| Carbon, hydrogen and oxygen |
|
|
Term
| Chemical element only found in proteins |
|
Definition
|
|
Term
|
Definition
| the breakdown of large insoluble particles of food into smaller soluble particles to allow absorption into the blood stream through the wall of the small intestine. |
|
|
Term
| Where are digestive juices produced? (5 places) |
|
Definition
| Salivary glands, stomach , pancreas, liver,small intestine |
|
|
Term
| The three types of enzymes needed for digestion and their job. |
|
Definition
| Amylase: breakdown of starch, Protease: breakdown of proteins, Lipase: breakdown of fats |
|
|
Term
| Name of an enzyme made by the salivary glands |
|
Definition
|
|
Term
| Enzyme made by the stomach to breakdown proteins |
|
Definition
|
|
Term
| Digestive juice made by the liver |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| A wave of muscular contraction. |
|
|
Term
|
Definition
| Pushes food along the whole digestive system and mixes food with digestive juices |
|
|
Term
| Describe what happens to during peristalsis |
|
Definition
| Muscles behind the food CONTRACT and muscles in front of the food RELAX. |
|
|
Term
| Explain how the small intestine is good to absorb nutrients FAST |
|
Definition
| Large surface area (long, folds,covered in finger-like villi) , Fast transport to blood (thin lining of cells, rich blood supply). |
|
|
Term
| Two jobs of the large intestine |
|
Definition
| absorbs water from the digested food and passes out the faeces |
|
|
Term
|
Definition
| Breaks down starch into maltose |
|
|
Term
|
Definition
| Breaks down fats into glycerol and fatty acids |
|
|
Term
|
Definition
|
|
Term
|
Definition
| Simple sugars, glycerol, fatty acids, amino acids. |
|
|
Term
| 2 jobs of hydrochloric acid in the stomach |
|
Definition
| correct pH for pepsin to work and kills microbes from the food |
|
|
Term
| Why do we need a skeleton? |
|
Definition
• Support
• Points for muscle attachment
• Protection |
|
|
Term
|
Definition
| flexible fibres and hard minerals |
|
|
Term
|
Definition
|
|
Term
| Bone is strengthened by .... |
|
Definition
| hard mineral salts like calcium phosphate and of a protein called collagen |
|
|
Term
| How are muscles attached to bones? |
|
Definition
|
|
Term
| Range of movements in a hinge joint |
|
Definition
|
|
Term
| Range of movements in a ball and socket joint |
|
Definition
|
|
Term
| How is movement brought about by muscle action? |
|
Definition
| Muscle contracts, pulling the bone with it |
|
|
Term
| Explain the need for a pair of opposing muscles at a joint |
|
Definition
| To move the bones in two directions you need a muscle on either side of the bone, e.g. biceps and triceps |
|
|
Term
|
Definition
- Create a barrier against microbes
- prevent dehydration |
|
|
Term
| Describe how skin can be damaged by the sun. |
|
Definition
• wrinkles
• weakening your immune system
• causing damage to your DNA leading to skin cancer |
|
|
Term
| Apart from the sun, explain 2 ways the skin can be damaged. |
|
Definition
|
|
Term
| Describe the use of stem cells to treat burn victims |
|
Definition
| Growing and applying a layer of new skin which protects from infection |
|
|
Term
| Three ways to protect the skin from damage |
|
Definition
Slip – on a t-shirt
Slap – on a hat
Slop – on some suncream |
|
|
