Complete the following sentences. Match the words in the left-hand column with the appropriate blank in the sentences in the right-hand column. 1. If a carbohydrate, like xylulose, has five carbon atoms and a carbonyl group on the second carbon, it is called a(n).
2. With the carbonyl group on the end of a six-carbon chain, the carbohydrate would be classified as a(n).
3. Any carbohydrate with the carbonyl group on the second carbon is a(n).
4. A monosaccharide is a(n).
5. The most common carbohydrate.
6 Glyceraldehyde is an example of a(n).
a. aldose
b. ketose
c. aldohexose .
d. triose
e. glucose
f. ketopentose

Answered below

Explanation:

1) A ketopentose. A ketopentose is a monosaccharide that contains five carbon atoms and a ketone functional group. It has a chemical formula of C5H10O2.

2) An aldose. A carbohydrate with six carbon chains and a carbonyl group at the end is called an aldose. All aldoses have their carbonyl group at the end of the chain.

3) A ketose. Ketoses have their carbonyl group in the middle of the carbon chain.

4) A monosaccharide is an aldohexose.

5) Glucose is the most common carbohydrate with the chemical formula C6H12O6.

6) A triose. Glyceraldehyde is a triose with the chemical formula C3H6O3. It is a crystalline, sweet, colourless solid.

Epithelial tissue covers body surfaces that are exposed to the environment and also secretes internal regulatory molecules

Explanation:

The epithelium is one of the four main classes of animal tissues (i.e., epithelial, muscle, connective and nervous tissues). The epithelial tissue covers both external and internal body surfaces such as, for example, the skin and the digestive tract, respectively. In the skin, this tissue is a protective layer that prevents water loss and damage by external environmental factors or by mechanical friction. Moreover, in the digestive tract, epithelial tissue plays critical roles for the absorption of nutrients, as well as during regulation and excretion of hormones.