Biology Semester B Review

Enzymes are considered to be 

• Lipids
• Carbohydrate
• Protein
• Nucleic Acid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Which organic molecule would a long-distance runner most likely choose to eat two hours before a race?

• A protein, because it builds muscle mass.

• A lipid because it provides long term energy storage.

• A carbohydrate because it releases energy quickly.

• A protein, because it transports oxygen into the blood stream.

What do carbohydrates mainly provide for cells? Choose two answers!

• Long-term energy
  

• Structural support

• Fast source of energy

• Insulation

• Muscles

Tags

NGSS.HS-LS1-7

What are lipids primarily known for?

• Serving as building blocks of proteins

• Providing genetic information

• Forming cell membranes

• Quick energy supply

Which is true of prokaryotic and eukaryotic cells?

• Prokaryotic cells are larger than eukaryotic cells.
• Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
• Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
• Eukaryotic cells are simpler than prokaryotic cells.

What does it mean for a membrane to be partially permeable?

• 50% of the molecules can pass through it.

• No molecules can pass through it.

• Tiny holes called pores allow molecules to move through it.

• It allows some molecules to pass through it.

What is osmosis?

• The diffusion of gas.

• The movement of solutes.

• The diffusion of water.

• The movement of any solvent.

Which diagrams show active transport. (More than 1 correct answer)

• A

• B

• C

• D

What happens to a cell in a hypotonic solution?

• The cell loses water and shrinks.

• The cell gains water and swells.

• The cell neither gains nor loses water.

• The cell dissolves in the solution.

What happens to a cell in a hypertonic solution?

• The cell gains water and swells.

• The cell loses water and shrinks.

• The cell neither gains nor loses water.

• The cell dissolves in the solution.