3.2 ATP

Question 1

Cells need energy to carry out many important functions such as:

Answer 1

Mechanical work, transport work, chemical work

Question 2

Mechanical work

Answer 2

beating cilia, muscle
movement

Question 3

Transport work

Answer 3

pumping substances across
membranes

Question 4

Chemical work

Answer 4

providing energy to build
complex molecules

Question 5

ATP:

Answer 5

Adenosine Triphosphate

Question 6

ATP contains large amounts of __________

Answer 6

free energy

Question 7

ATP Hydrolysis

Answer 7

crowded, negatively charged
phosphate groups repel one another and
weaken the bonds holding them together - bonds can be easily broken by hydrolysis to release energy

Question 8

ATP + H2O ->

Answer 8

ADP + phosphate group + NRG

Question 9

Energy Coupling

Answer 9

using energy released from
one reaction to drive another reaction

Question 10

phosphorylation

Answer 10

when ATP is used to attach a phosphate group
to another molecule to supply it with ENERGY - makes the molecule more reactive and more likely to undergo a
spontaneous reaction

Question 11

True or false: Cells must regenerate ATP in order to continue functioning

Answer 11

True

Question 12

How do cells make ATP

Answer 12

1. combining ADP (Adenosine
   diphosphate) with a Phosphate group
2. through the breakdown of
   more complex molecules in the food we eat
   (fats, carbohydrates, proteins)

Question 13

ATP provides a ___________ amount of energy for cell reactions

Answer 13

manageable

Question 14

ATP can couple to:

Answer 14

thousands of different reactions in our cells

Question 15

Why can ATP be reliably utilized

Answer 15

Can be assembled using the energy from a
variety of different food molecules (no shortage of ATP)