CHEMICAL COMPONENTS OF A PLANT CELL

Question 1

molecules that contain carbon

Answer 1

organic compounds

Question 2

pure carbon and carbon compounds lacking hydrogen are classified with noncarbon compounds

Answer 2

inorganic chemicals

Question 3

organisms consist of organic compounds such as

Answer 3

carbohydrates, proteins, lipids and nucleic acids

Question 4

organisms consist of inorganic components such as

Answer 4

carbon, hydrogen, oxygen, calcium, iron and magnesium

Question 5

compounds made up of carbon, hydrogen and oxygen

Answer 5

Carbohydrates

Question 6

Carbohydrates can be classified into three groups

Answer 6

monosaccharides, disaccharides and polysaccharides

Question 7

which is a polysaccharide is regarded as the major food reserve in plants

Answer 7

Starch

Question 8

made up of basic units called amino acids

Answer 8

Proteins

Question 9

The composition and size of the protein molecule depends upon the kind and number of its

Answer 9

amino acid subunits

Question 10

heterogeneous collection of substances which are characterized by their low solubility in water but higher solubility in organic solvents such as acetone and ether.

Answer 10

Lipids or fats

Question 11

Percent Composition of Organic and Inorganic Constituents in a Living Plant methods

Answer 11

Moisture content analysis
Ash analysis

Question 12

Qualitative Tests for Carbohydrates

Answer 12

Benedict’s test
Barfoed’s test
Iodine test

Question 13

Qualitative Test for Protein

Answer 13

Biuret test

Question 14

Qualitative Test for Lipids

Answer 14

Residue test
Sudan test