VII. Choose the right answer to complete the sentences

1. Sugar crops are

a) a large number of carbohydrates; b) crops which serve as a source of sucrose: c) a product of photosynthesis.

2. Sugar is a broad term applied to

a) a large number of carbohydrates that have a sweet taste; b) storage organs, fruits and sap of plants; c) sources of commercial sucrose.

3. Sugar beet, sugar cane, sweet sorghum, sugar maple, sugar palm,

honey and corn sugar are

a) crops which serve as sources of sucrose; b) carbohydrates; c) diverse sugars and starches.

VIII. Read the text and tell – what kind of sugars do you know?]

Text D

Carbohydrates form a large group of chemical compounds of which the commonest examples are the various sugars, starch and cellulose. All carbohydrates are made of carbon, hydrogen and oxygen and in nearly all cases the hydrogen and oxygen are in the ratio of two to one, as in water, H2O. Thus the simple sugar, glucose, can be represented by the formula C6H12O6, which means that there are six atoms of carbon (C), twelve atoms of hydrogen (H) and six atoms of oxygen (O) in each molecule of glucose.

Glucose and fructose are simple sugars found in many fruit and honey, and glucose is used as the basis of some sweets. Glucose is also made when starch is digested in the body and it is the chief form in which sugar is carried round the body as a sugar solution. Although cane sugar or sucrose is obtained from the stem of the sugar cane, much of it comes from the root of the sugar beet. Maltose is the sugar of malt, made from germinating barley. When it is digested, maltose turns to glucose, while sucrose turns to glucose and fructose. All the sugars dissolve easily in water and have a sweet taste.