Question

movement of molecules across cell membrane: (circle one) high to low (with the concentration gradient ) or low to high (against the concentration gradient) type of cell transport: (circle one). passive transport or active transport is energy required: yes or no is a protein channel or transport protein present in cell membrane? yes or no type of cell transport mechanism illustrated in picture? (circle one) a. osmosis b. diffusion c. active transport facilitated diffusion

Explanation:

Step1: Analyze concentration gradient

The text mentions movement from high to low concentration (with the concentration gradient).

Step2: Determine transport type

Since it's moving with the concentration gradient, it's passive transport which does not require energy (NO).

Step3: Identify protein presence

There is a protein channel in the cell - membrane (YES).

Step4: Name the transport mechanism

When molecules move from high to low concentration with the help of a protein channel, it is facilitated diffusion.

Answer:

Movement of molecules across cell membrane: high to low (with the concentration gradient)
Type of cell transport: Passive transport
Is Energy required: NO
Is a protein channel or transport protein present in cell membrane? YES
Type of cell transport mechanism illustrated in picture: facilitated diffusion