Biological molecules grade 12

basic unit of proteins

• meat

• amino acids

• fatty acids

• nucleotides

The total number of amino acids in animal and plant cells.

• 20

• 21

• 19

• 14

The physical state of oils at room tempurature.

• solid

• liquid

• gas

Which is an example of example of a simple sugar (monosaccharide)

• starch

• sucrose

• glucose

• glycogen

physical state of fats at room temperature.

• solids

• liquids

• gases

What is the most common type of organic compound (biological molecule)?

• 
  lipids

• proteins

• 
  carbohydrates

• 
  nucleic acids

Two examples of much larger sugar molecules (polysaccharides).

• 
  glucose and starch

• 
  starch and glycogen

• glucose and glycogen

• sucrose and starch

Basic units of lipids.

• 
  simple sugars

• amino acids

• nucleotides

• 
  fatty acids and glycerol

Basic units of cabohydrates.

• fatty acids and glycerol

• nucleotides

• simple sugars

• amino acids

Lipids are important in forming _____________.

• cell membanes

• D.N.A.

• cytoplasm

• 
  R.N.A.