COMPLETE THE FOLLOWING: 1.A fat is formed when three fatty acids joins glycerol

Question

COMPLETE THE FOLLOWING:

1.A fat is formed when three fatty acids joins glycerol by a----------------- ?

2.The four main categories of organic molecules are……..?

3.How does DNA differ from RNA?

4.Plants store carbohydrates in the form of ------------ whereas animals stores their carbohydrates in the form of----------?

5.A nucleotide is made up of what chemical components?

6.The primary buffer in the blood is the-----------?

7. MATCH WITH THE CORRECT ANSWERS;

Simple Squamous Epithelium

Simple Squamous Epithelium

lining of most digest tract Simple Columnar Covering viscera organs lining body cavities Pseudostratified Cilliated Columnar Epithelium lining of respiratory pathway

Explanation / Answer

1) A fat is formed when three fatty acids joins glycerol by ester linkage.

2.The four main categories of organic molecules are: a)Protiens b) carbohydrates c) lipids d) Nucleic acids.

3. In DNA the common organic base are adenine,guanine,cytosine and thymine,but in RNA the common organic base are adenine,guanine,cytosine and uracil.In DNA the pentose sugar is deoxy ribose and in RNA the pentose sugar is ribose.

4.Plants store carbohydrates in the form of starch, plants can split the starch into simpler glucose units for use as energy, wheras animals stores carbohydrates in the form of glycogen in liver or muscles,the glycogen is converted to glucose when ever the body requires it.

5.. A nucleotide is made up of 1). nitrogen containing base 2). sugar (5 carbon containing) and 3). phosphate group.

6. Carbonic acid and bicarbonate is the primary buffer in the blood

7.A) Simple squamous epithelium : covering viscera organs lining body cavities.(these tissue also line the blood vessels)

B) Simple columnar : lining of most digestive tract. (they are uni layered)

C) Pseudostratified ciliated columnar epithelium : Lining of respiratory tract ( they are also single layered).

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