insulin binds to receptors on the plasma membrane of liver and muscle cell. describe and explain three ways in which insulin will result in increased uptake of glucose by these cells, with reference to glucose carriers and diffusion gradients.

Which of these has happened to your food by the time it reaches your small intestine? a. all the macromolecules have been broken down completely. b. lipids and starches have been partially broken down. c. starches and proteins have been partially broken down. d. proteins and lipids have been broken down into subunits.

How are fungi more like an animal? they have a cell wall. they are heterotrophs that absorb their food. they produce seeds and have membrane-bound nucleus. they use sunlight for photosynthesis.

There are only about 250,000 known fossil species. true or false