Ch 5 & 6 - Pre Quiz

What part of a phospholipid are hydrophobic?

• fatty acid tails
• water molecule
• glycerol backbone
• phosphate head

Which would be the most likely to diffuse through a plasma membrane without the help of a transport protein?

• Large, polar molecules
• Small, nonpolar molecules
• Charged ions
• Macromolecules

What type of protein creates a channel that specific substances can pass through?

• receptor protein
• transport protein
• channel protein
• structural protein

In diffusion: Substrates move from an area of ____ concentration to an area of ____ concentration.

• high, low
• low, low
• low, high
• high, high

What type of transport moves molecules against the concentration gradient?

• Active transport
• Osmosis
• Facilitated diffusion
• Passive transport

An egg contains 1.2% salt. It is placed in a beaker containing a solution that is 0.2% salt. Which of the following statements is true in this situation:

• The egg will shrink and potentially collapse.

• The egg will remain the same size.

• The egg will swell and potentially burst.

• The egg will dissolve in the solution.

Tags

NGSS.HS-PS1-5

Catabolism is:

• Endergonic

• Intragonic

• indugonic

• Exergonic

Tags

NGSS.HS-LS1-7

NGSS.HS-PS1-4

Entropy is involved with which law of thermodynamics?

• third law
• second law
• zeroth law
• first law

Tags

NGSS.HS-PS3-4

Oxidation is a substance that ____ electrons.

• loses
• absorbs
• gains
• shares

What type of system can exchange energy or matter with its surroundings?

• closed system
• isolated system
• open system
• static system