cell metabolism

Question 1

The kinetic theory states what?

Answer 1

the universe is made of matter and energy

Question 2

Atoms

Answer 2

smallest part of an element

Question 3

Electrons

Answer 3

particles that make up atoms and has a negative charge

Question 4

Ions

Answer 4

particles made when atoms lose or gain electrons (smaller= absorbed quicker)

Question 4

Molecules

Answer 4

particles made when atoms chemically join together

Question 5

what are the two types of energy?

Answer 5

kinetic energy- energy of motion (always moving) :gas&liquid

potential energy- the energy is cased (does not move) “stored energy” :Solids

Question 6

which has the most kinetic energy and the least?

Answer 6

Most- Gas
Least- Solid

Question 7

Forms of energy (4)

Answer 7

Heat energy—released as waste from processes such as cell respiration.

Light energy—helping plants make food during photosynthesis.

Potential chemical energy—stored in food.

Energy transfers—energy used to drive chemical reactions in cells.

Question 8

Hundreds of chemical reactions occur inside all living cells. Collectively, these are called Metabolism and can be divided into:

Answer 8

Anabolism—small molecules combine to form larger ones.

require energy

Catabolism—large molecules are broken down into smaller ones.

release energy.

Question 9

Diffusion

Answer 9

the movement of ions or molecules from a region where they are in high concentration to one where they are in low concentration.

Question 10

Not all particles can diffuse through cell membranes, why?

Answer 10

too big

chemically incompatible with the membrane.