Similarity is the concentration of osmotically active substances dissolved in solution within a cell. What types of molecules might be present in cells that affect osmolarity? In what part of the cell would you find each of your suggestions?

Equilibrium means all of the following except (which is false?) the concentration gradient for a solute is the same on either side of the membrane. molecules are in equal concentration and therefore no longer move across the membrane. there is no net movement molecules across a membrane. the water concentration is equal on either side of the membrane.

I don’t understand this

Drag the appropriate labels to their respective targets. Reset Help Receptor-mediated endocytosis Secondary active transport Facilitated diffusion Exocytosis Passive transport Primary active transport Phagocytosis Osmosis Simple diffusion Pinocytosis ATPase pump Solute (jon) Solutes Solute Solute Solute H,0 Carrier protein -Plasma membrane Solute Carrier/ channel protein ATPase pump Cytosol ADP ADP Partide Ligand Pseudo- Receptor. Receptor podium Protein-coated pit Protein-coated pit Forming veside Cytosol Veside Veside Vesidle

Why does water enter a cell that is placed in a hypotonic solution?

Some animals are osmoconformers, meaning that they maintain the tonicity/osmolarity of their body fluids equal to that of the external environment. Hydroids, a type of cnidarian, are osmoconformers. But they don't move and thus are adapted to the environment they live in. A) What would happen if you take a marine hydroid and transfer it into a freshwater aquarium? B) What would happen if you take a freshwater hydroid and transfer it into a saltwater aquarium? C) Sharks are extraordinary osmoconformers. Bull sharks store urea in their tissues and use it to match the tonicity of their tissues to that of the surrounding environment. Some sharks can move from saltwater to freshwater, hypothesize what changes will sharks do in order to adjust when moving from saltwater to freshwater and vice versa. Explain your answer in terms of tonicity and specify the direction of water movement and urea concentration.

You are viewing two samples of mammalian red blood cells (erythrocytes) under a microscope. One first sample is made up of cells with a typical round shape. Most of the cells in the second sample had burst open. •Describe the properties of the solution that was used to prepare the second sample. • Identify one type of solute that can move through simple diffusion and does not affect osmotic pressure or require a membrane protein to cross a plasma membrane.

The cell membrane is permeable to water but not to ions.  Select all that apply. Question options:   Beaker A is isotonic to the cell.    Some water in cell A is moving in and out of the cell.    There is a net movement of water into Cell B.    Beaker C is hypotonic to Cell C.