Got A Few Question! ASAP!!?

Question

1. Why is tugor pressure not a feature of animal cells?
2.How Would A marine Fish react in a tank of freshwater?
3.Explain how to breakdown of ATP provides energy for cells.

Answer 1

1. Turgor pressure is the water pressure inside a plant cell's central vacuole that presses out on the cell wall and keeps it tight and rigid. Animal cells do not have central vacuoles, nor do animal cells have cell walls. If animal cells have too much water pressure inside, they tend to break open.

2. Freshwater is hypotonic to the cells of the saltwater fish. The freshwater has a higher concentration of water and a lower concentration of salt and other solutes than the fish usually lives in. The fish's cells are adapted to be isotonic for their usual environment. Therefore, more water would diffuse into exposed cells than the amount of water that diffuses out of the cells. The cells would swell up and probably break open. The cells of the gills would be affected first because they are subjected to contact with the freshwater.

3. When ATP breaks apart, the last phosphate group comes off. The bond that held the last phosphate group on the ATP was a "high energy bond". When that bond breaks, the energy from the bond is available for the cell to use. The two pieces of the molecule that result are ADP and a separate phosphate group.

Answer 2

I can answer one question;

Turgor pressure or turgidity is the pressure of the cell contents against the cell wall, in plant cells, determined by the water content of the vacuole, resulting from osmotic pressure.... Animals do not have this feature because we have our skeletal system and mussels to resist gravity. Also animal cell vacuoles are much smaller than a plants, which is another supporting fact