AP Bio Review

Which of the following is correct about the molecule cholesterol?

• it is a polar molecule

• it is a protein

• it stores energy as a charbohydrate

• it is hydrophobic

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 .
  

Which of the following environmental changes could denature an enzyme?

• too high a concentration of substrate

• too high a concentration of enzyme

• pH too low

• too low a concentration of substrate

What causes trophic cascades?

• Increasing the number of producers

• Pollution

• The removal of a keystone species

• Introducing a new species to an ecosystem

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-6

The study of the chemical reactions of living things is called __.

• Anatomy

• physiology

• Biochemistry

• physics

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

A steroid is an example of a ​ (a)  

• Iipid

• protein

• carbohydrate

• nucleic acid

A macromolecule is found to have C, H, O, N, and S. Identify?

• Carbohydrate

• Lipid

• Nucleic Acid

• Protein

Answer explanation

All of the macromolecules have carbon (C), hydrogen (H), and oxygen (O). Nitrogen is found in proteins and nucleic acids. Sulfur is found in the R group of some amino acids. Proteins are the only macromolecule with C, H, O, N, and S.

A macromolecule is found to have C, H, O, N, and P. Identify?

• Carbohydrate

• Lipid

• Nucleic Acid

• Protein

The process of building up larger molecules from smaller ones.

• catabolism

• anabolism

• mitosis

• meiosis

A steroid is an example of ​a (a)  

• lipid

• protein

• nucleic acid

• carbohydrate