Energy And Metabolism

Question 1

Kinetic energy

Answer 1

Work is used to push a ball up a ramp, kinetic energy of moving up the ramp is being stored in the potential energy of the balls position.

As the ball rolls down the ramp, it is converting the potential energy into kinetic energy. However, the conversion is not completely efficient, and some energy is lost as heat do to the friction between the ball ramp and air

Question 2

Potential energy

Answer 2

A ball sitting at the top of the ramp has potential energy potential to do work

Question 3

Types of work

Answer 3

Chemical
Transport
Mechanical

Question 4

Chemical work

Answer 4

Making and breaking of chemical bonds

Enable cells and organisms to grow

Maintain a suitable internal environment and store information

Question 5

Transport work

Answer 5

Cell movement through the cell membrane

Membranes of organelles in the cell

Question 6

Mechanical work

Answer 6

For movement
Mediated by motor proteins of intracellular, fibers and filaments of the cytoskeleton

Question 7

Chemical reactions

Answer 7

Extract energy, proteins, carbohydrates fats

Synthesize or break down molecules

Question 8

Utilization or release of energy two ways

Answer 8

Catabolic break down large molecules and release energy
Anabolic energy utilization by synthesis of large molecules

Question 9

Anaerobic versus aerobic

Answer 9

Anaerobic uses one glucose metabolized yields two ATP

Aerobic uses one glucose metabolized yields 30 to 32 ATP

Question 10

Function of metabolism

Answer 10

Energy for all chemical processes
Conversion of food to fuel
Movement
Elimination of waste
Repair
Transport