Question

classify each description or image according to the type of molecular transport it portrays. labels ① drop zones reset all a non - water molecule moves down its concentration gradient without the help of a carrier molecule or energy input. through membrane proteins, requiring energy. your potted ivy plant is wilted, but perks up after you water it. water moves down its concentration gradient into a red blood cell.

Explanation:

1. "A non - water molecule moves down its concentration gradient without the help of a carrier molecule or energy input" is simple diffusion as it fits the definition of molecules moving passively down a concentration gradient without assistance.
2. "Through membrane proteins, requiring energy" is active transport since active transport uses membrane proteins and energy (usually ATP) to move substances against their concentration gradient.
3. "Your potted ivy plant is wilted, but perks up after you water it" - Water moves into the plant cells by osmosis, which is the diffusion of water across a semi - permeable membrane.
4. "Water moves down its concentration gradient into a red blood cell" is osmosis as it involves the movement of water down its concentration gradient across the cell membrane of the red blood cell.

Answer:

1. Simple diffusion
2. Active transport
3. Osmosis
4. Osmosis