Quiz on Atoms, Molecules, and Membranes

Atoms and molecules are in a state of constant motion known as:

• Gregorian

• Brownian

• Mendelian

• Newtonian

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-4

Application of heat will ______ the Brownian movement of atoms or molecules.

• Increase

• Decrease

• Have no effect

• Stop

Tags

NGSS.HS-PS1-5

Living membranes are:

• Semipermeable

• Freely permeable

• Selectively permeable

• Impermeable

A membrane that only allows water to pass through is:

• Semipermeable

• Freely permeable

• Selectively permeable

• Impermeable

Diffusion is the movement of molecules ______ a concentration gradient.

• Along

• Against

• Without

• Across

Molecules will diffuse through a living membrane if they are:

• Water-soluble

• Lipid-soluble

• Large molecules

• Charged particles

Steroid hormones are able to diffuse through the plasma membrane because they are:

• Lipid-soluble

• Water-soluble

• Too large of a molecule

• Both of these

Protein hormones are ______ able to diffuse through the plasma membrane.

• Are

• Are not

• Sometimes

• Always

Carrier proteins are used during:

• Simple diffusion

• Facilitated diffusion

• Osmosis

• All of these

Facilitated diffusion moves atoms and/or molecules from an area of ______ concentration to an area of ______ concentration.

• High; low

• Low; high

• Equal; equal

• Low; low