Biology STAAR Review

Which biomolecule is also known as enzymes?

• Carbohydrate
• Lipid
• Nucleic Acid
• Protein

Which biomolecule is your main source of quick energy?

• Nucleic Acid

• Protein

• Lipid

• Carbohydrate

Tags

NGSS.HS-LS1-7

The monomer of a protein is called 

• an amino acid
• a monosaccharide
• a fatty acid
• a nucleotide

Which biomolecule is found in fats, oils, and waxes and is a source of long-term energy? 

• Proteins
• Nucleic Acid
• Lipids
• Carbohydrate

Which of the following molecules makes up the structure of a cell membrane?

• waxes

• steroids

• fatty acids

• phospholipids

Which of the 4 biomolecules is used for long-term energy storage, insulation, and protection?

• Lipids

• Proteins

• Nucleic acid

• Carbohydrates

What is the purpose  of an enzyme?

• give permission for the reaction
• raise activation energy
• speed up reactions
• control how many reactions occur

Which of the following conclusions can be drawn from this graph?

• The optimum pH of the enzyme is 6.6.
  
• The optimum pH of the enzyme is 5.8
  
• The enzyme’s activity increases as pH increases 5.0 to 9.0
  
• The enzyme’s activity is greater around pH of 8.0 .
  

Photosynthesis involves the production of sugar and oxygen. Select the diagram that shows the product of photosynthesis.

• A

• B

• C

• D

Tags

NGSS.HS-LS2-5

NGSS.HS-LS1-5

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin