Реферат: BIO Notes On Organic Chemistry Essay Research

· (D). Calciferol. Helps child?s bones become strong. Lack of cause rickets. Can be obtained from fish liver oil or the body through sunlight. Fat soluble

· (E). Found in milk and egg yolk. Lack of cause sterility. Fat soluble

· (K). Helps blood clot. Lack of causes internal, external bleeding. Fat-soluble.

· Composition of different foods helps us identify useful substances.

· Vegetarian: eats no animal meat but does eat products. Vegans do not eat animal products.

· Food additives: substances that are added to food. Some give change to colour, taste, preservation or consistency.

How substances are stored

WHY DO ORGANISMS STORE SUBSTANCES?

· So that they can survive when food is unavailable or scarce

· Man can survive several weeks

WHERE ARE SUBSTANCES STORED?

· The main storage place is the liver for humans.

· For plants they swell up and make the swelling the storage place. The plant storage organ can survive harsh conditions then a new plant spouts and the food is moved there.

PLANTS STORAGE SYSTEM

· Green plants produce glucose that is either used straight away or turned into starch and converted back to glucose when needed.

· Other substances can be made from glucose in plants (oil, sugar)

REQUIREMENTS FOR TURNING STARCH INTO GLUCOSE

· Enzyme

· Can be tested with starch

HOW STARCH IS TURNED INTO GLUCOSE

· Glucose molecules join together and coil up forming a starch grain (condensation)

· The starch grain can de-coil and split up forming Glucose (hydrolysis)

ANIMALS STORAGE SYSTEM

· Get glucose from food

· They turn glucose into glycogen

· Glycogen is a bondage of glucose molecules linked together

· Stored in the liver

· It is also stored as fat

MOBILISATION