Question

question 12 what process halts the net movement of water from a hypotonic solution into a plant’s cells and often provides the structural support to many plants? osmotic pressure facilitated diffusion plasmolysis turgor pressure question 13 what is required for facilitated diffusion to take place? a small nonpolar molecule energy from atp a transmembrane protein movement down a concentration gradient question 14 carrier proteins are also called _____? active transport proteins pores aquaporins transport proteins

Explanation:

• Question 12: Turgor pressure is the pressure exerted by water inside plant cells against the cell wall. It halts the net movement of water from a hypotonic solution into plant cells and provides structural support to plants. Osmotic pressure is related to the movement of water across a semi - permeable membrane but doesn't directly provide structural support like turgor pressure. Facilitated diffusion is a transport process for molecules, not related to halting water movement in this context. Plasmolysis is the shrinkage of the protoplast away from the cell wall due to water loss.
• Question 13: Facilitated diffusion is the passive movement of molecules across a cell membrane with the help of transmembrane proteins (carrier or channel proteins). It occurs down a concentration gradient but the key requirement among the options given is the presence of a transmembrane protein. A small nonpolar molecule can diffuse freely across the membrane without the need for facilitated diffusion. Energy from ATP is required for active transport, not facilitated diffusion.
• Question 14: Carrier proteins are a type of transport proteins that bind to specific molecules and transport them across the cell membrane. Active transport proteins are a subset of transport proteins that use energy for transport. Pores are different from carrier proteins. Aquaporins are a specific type of channel protein for water transport.

Answer:

Question 12: Turgor pressure
Question 13: A transmembrane protein
Question 14: Transport proteins