1- smooth, cardiac, skeletal
2-tendons
3- digestive tract, airways(bronchi and bronchioles), muscles in iris(that change the area of our pupil)
4- skeletal
5- smooth and cardiac
Hope this helps:)
When something needs to be transported against its concentration gradient, or a molecule is too big to simply diffuse through a membrane, active transport has to be used. So active transport requires energy (ATP).
Examples:
1. Antiport pumps: transport one substance in one direction while transporting another substance the other way. An example of this is the sodium-potassium pump.
2. Symport pumps - uses a substance that wants to move from an area of high concentration to low concentration and carries another substance against its concentration gradient. An example of this is the sodium-glucose transport protein
3. Endocytosis - large amounts of extra cellular fluid can be taken into a cell - needs ATP to bind proteins in the cell membrane and causes them to change their shape...which eventually causes the surrounding of the fluid to be brought in (a vesicle).
4.exocytosis - opposite of above
its molecule has a bent shape
Without knowing the answers, I am thinking it would be either a change in habitat, like climate change or the grass and therefore the herbivores are dying so the lion can't eat. I'm not positive, but it seems most likely.b <span />
