` BIOLOGY QUESTIONS - 10 POINTS! level 2.?

Question

1. Why are more mitochondria found in the muscles of an enduceance athlete over a spirinter?

relate it to ATP and energy.

2. Explain why cells can only grow to an limited size?

relate to surface area, volume, osmosis, diffusion - that kind stuff.

<333 THANKS.

Answer 1

Mitochondrian is known as the powerhouse that produce alot of energy in the form of Atp (chemical energy). The muscles need ATP &amp; GTP, IN ORDER to contract and relax as well as to perform its functions which help us move. So basically the energy is released from potential energy to create motion.

Cells have growth regulations which are necessary for  homeostatis within our body. This is controlled by various mechanisms in the body and to simplify it the bigger cells can sometimes pass through by way of facilitated situations. The smaller cells can easily pass through a little easier. We need to have movement of cells and nutrients in our body because things need to travel to where they need to be.!!

Answer 2

1= because they have to have more ENERGY (the endurance atheletes), where as sprinters run shorter distances.

2=Well, the surface area has to be exactly the same otherwise there would be something wrong with the cell. Then they could not diffuse, so they mulitiply bigger if they are bigger than the limit.

Answer 3

1. Mitochondria are cellular power plants; they function to turn food (primarily carbohydrates) into the energy required for muscular action, specifically adenosine triphosphate (ATP). ATP is found in all cells and is the body’s universal energy donor. It is produced through aerobic and anaerobic energy metabolism and, consequently, through the associated actions of both slow and fast-twitch muscle fibre.

Slow-twitch, the endurance athlete, has a good level of blood supply.