IB Biology

Which of the following is the main reason that humans need to include carbohydrates in their diet?

• Carbohydrates are broken down in cells for energy.

• Carbohydrates combine to form many different proteins.

• Carbohydrates act as catalyst to speed up chemical reactions.

• Carbohydrates are the building blocks for cell growth and repair.

Tags

NGSS.HS-LS1-7

Monosaccharides are monomers of

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids

These biomolecules are, in order of appearance...

• cis and trans saturated fatty acids

• cis and trans unsaturated fatty acids

• trans and cis saturated fatty acids

• trans and cis unsaturated fatty acids

What is a role of cholesterol in animal cells?

• it increases body fat

• it controls membrane fluidity

• it lines the inner wall of capillaries

• it is a constituent of bile

Which molecule diagram corresponds to the name?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-6

Which molecule is a sugar?

• 
• 
• 
• 

Tags

NGSS.HS-LS1-6

What molecule is a polysaccharide?

• glucagon

• glycose

• glycerol

• glycogen

Which substance is used for structure in plants?

• amylopectin

• cellulose

• collagen

• starch

In which compounds would a double bond link carbon to oxygen (C=O)?

I. amino acid

II. fatty acid

III. glycerol

• I and II only

• II and III only

• I and III only

• I, II, and III

Tags

NGSS.HS-LS1-6

That is the maximum number of fatty acids that can be condensed with glycerol?

• one

• two

• three

• four