Unit 4: Energy Generation

Question 1

What is photosynthesis?

Answer 1

Energy, Carbon dioxide and water to produce organic molecules and oxygen.

Question 2

What is reactants and products involved in cellular respiration?

Answer 2

Organic molecucles and oxygen to produce carbon dioxide, water and energy.

Question 3

What is Respiration?

Answer 3

The exchange of gases.

Question 4

What is cellular respiration?

Answer 4

The aerobic harvesting of energy from organic molecules.

Question 5

What are exergonic reactions?

Answer 5

Reaction that produces or releases energy.

Question 6

How is the atp in your body devided?

Answer 6

-75% of it is used for life sustaining activities
-25% of it goes to voluntary activites.

Question 7

What is Kcal?

Answer 7

The quantity of heat required to raise the temperature of one kilogram of water by 1 celsius.

Question 8

What is the basal metabolic rate?

Answer 8

The minimum amount of calories needed in a day to maintain all the activities.

Question 9

What is a redox reaction?

Answer 9

The transfer of electrons from one reactant to another.

Question 10

What is oxidation?

Answer 10

The loss of electrons.

Question 11

What is reduction?

Answer 11

The gain of electrons.

Question 12

What is dehydrogenase?

Answer 12

Enzyme that oxidizes the organic fuel molecule.

Question 13

What is substrate level phosphorylation?

Answer 13

The process by which ATP is produced in glycolysis.

Question 14

What are intermediates?

Answer 14

The compounds formed in the steps between the starting reactants and the final product.

Question 15

What is chemiosmosis?

Answer 15

The potential energy of the H+ concentration gradient is used to make ATP.

Question 16

What is fermentation?

Answer 16

The process of harvesting energy from organic matter without using oxygen as a terminal elelctron acceptor.

Question 17

What is a yeast?

Answer 17

Singled celled fungi.

Question 18

What are obligate anaerobes?

Answer 18

Require anaerobic condition, are poisoned by oxygen.

Question 19

What are facultative anaerobes?

Answer 19

Can live anaerobic or aerobic conditions.

Question 20

What are photosynthesis?

Answer 20

Solar energy is used to convert CO2 and H20 into sugars and 02.

Question 21

What are autotrophs?

Answer 21

Organisms that make their own food.

Question 22

What are photoautotrophs?

Answer 22

Autotrphs that use energy from light.

Question 23

What are heterotrophs?

Answer 23

The consumers of the biosphere.

Question 24

What is chlorophyll?

Answer 24

A light absorbing pigment in the chloroplasts.

Question 25

What is stomata?

Answer 25

Pores that allow C02 to enter the leaf and 02 to exit the leaf.

Question 26

What are the functions of veins on a leaf?

Answer 26

They deliver water, minerals, sugars to all parts of the plant.

Question 27

What is labelling?

Answer 27

Construction of molecules using isotopes.

Question 28

What is a wavelength?

Answer 28

The distance between the crests of electromagnetic waves.

Question 29

What is the electromagnetic spectrum?

Answer 29

The full range of wavelengths.

Question 30

What is a photon?

Answer 30

A discreet packet of light energy.

Question 31

What is photoprotection?

Answer 31

Protection from excessive light energy.

Question 32

What are light harvesting complexes?

Answer 32

Pigment molecules bound to proteins?

Question 33

What is a reaction centre?

Answer 33

A pair of specialized chlorophyll a molecules bound to proteins.

Question 34

What is carbon fixation?

Answer 34

The incorporation of inorganic C02 into organic molecules which are reduced to form sugars.

Question 35

What is photorespiration?

Answer 35

Reaction that occurs in the light and consumes 02 to release C02.

Question 36

What are C4 Plants?

Answer 36

Fix carbon into a 4 carbon intermediate compound.