Cellular Respiration

Question 1

What is the first step in cellular respiration?

Answer 1

Glycolysis

Question 2

What is the primary sugar molecule used in glycolysis?

Answer 2

Glucose

Question 3

What is the end product of glycolysis?

Answer 3

Pyruvate

Question 4

What process follows glycolysis in cellular respiration?

Answer 4

Link Reaction

Question 5

What molecule is formed from the Link Reaction?

Answer 5

Acetyl CoA

Question 6

What cycle follows the Link Reaction in cellular respiration?

Answer 6

Krebs Cycle

Question 7

What is the main output of the Krebs Cycle?

Answer 7

ATP

Question 8

What process generates ATP through a proton gradient?

Answer 8

Chemiosmosis

Question 9

What is the final stage of cellular respiration that involves electron transfer?

Answer 9

Electron Transport Chain

Question 10

How many ATP molecules are produced in the Krebs Cycle?

Answer 10

S32 ATP

Question 11

It supplies the energy needed for the growth and maintenance of the plant.

Provides carbon skeletons needed for the synthesis of a large number of other essential plants products.

Answer 11

Cellular respiration

Question 12

Formula of cellular respiration

Answer 12

C6H12O6 + 6O2 + 6H2O -> 6CO2 + 12H2O

Question 13

Known as the powerhouse of the cell.

Answer 13

Mitochondria

Question 14

Organelles that act like a digestive system which takes in nutrients, break them down, and creates energy rich molecules for the cells.

Answer 14

Mitochondria

Question 15

The biochemical processes of the cell.

Answer 15

Cellular respiration

Question 16

Anaerobic respiration in ALL cells.

Aerobic respiration in Eukaryotic cells.

Answer 16

Lactic acid fermentation - animal cells.

Alcoholic fermentation - yeast and bacteria cells.

Question 17

This is anaerobic respiration.

No oxygen present.

Answer 17

Fermentation

Question 18

Respiration formulas;

Anaerobic respiration
Lactic acid fermentation

Answer 18

C6H12O6 => C3H5O3 + 2ATP
glucose => lactic acid + 2ATP

Question 19

Respiration formulas;

Anaerobic respiration
Alcohol fermentation

Answer 19

C6H12O6 => C2H6O + CO2 + 2 ATP
glucose => ethyl alcohol + carbon dioxide + 2ATP

Question 20

3 stages in cellular respiration!

Answer 20

Stage 1 Glycolysis
Stage 2 Oxidation of pyruvate and Krebs cycle
Stage 3 Electron transport chain and chemiosmosis

Question 21

Is the Transport of food in the plants phloem.

Answer 21

Translocation

Question 22

Living tissue that carries the products (sucrose and glucose)of photosynthesis from the leaves to other parts of the plant.

Answer 22

Phloem

Question 23

4 factors affecting translocation

Answer 23

Temperature
Light
Mineral deficiency
Hormones

Question 24

Process wherein plants loose water in the
form of vapor.
Simply, the evaporation of water in plants.

Answer 24

Transpiration

Question 25

Importance Transpiration is beneficial to the plant because: ❖ It cools the leaves ❖ Accelerates the ascent of sap ❖ Increases absorption of minerals ❖ Helps translocate mineral nutrients from the root to the shoot

Answer 25

Of all the water absorbed by plants, less than 5% is retained for growth and even less is used biochemically (Hopkins, 1999). The balance is lost by transpiration. A single corn plant transpires 200 li of water in its lifetime (Miller, 1938).

Question 26

According to this theory, living cells are required for the ascent of sap. These have been proposed by many workers namely Godlewski (Relay Pump Theory), bose (Pulsation Theory) and Molish.

Answer 26

Vital theory

Question 27

These theories were discarde because it was discovered that some poisons like picric acid and carbolic acid can also be translocated, thus fundamental basic of vital theories fails.

Answer 27

Vital theory

Question 28

2 Poisons found in vital theory

Answer 28

picric acid carbolic acid

Question 29

Caused by the movement of water into roots from the soil as a result of the active absorption of nutrients mineral ions from the soil.

Answer 29

Root pressure

Question 30

Water movement is due to differences in potential between soil, root, stem, leaf and atmosphere. ❑ Water follows the potential gradient from soil to atmosphere, and is pulled together by the cohesiveness and adhesiveness of the molecule themselves.

Answer 30

Cohesion -tension theory

Question 31

H2O sticks to other H2O molecules via H bonds.

Answer 31

Cohesion

Question 32

Water sticks to non water molecules via H bonds.

Answer 32

Adhesion

Question 33

As plants’ leaves transpire water, a _______ is created that pulls water from roots to leaves.

Answer 33

Tension

Question 34

This tension is maintained because water molecules display an attraction to one another called _______.

Answer 34

Cohesion

Question 35

TRANSPIRATION Two-stage process:

Answer 35

Evapotranspiration Diffusion

Question 36

______ of water from the moist cell walls into the sub stomatal air space.

Answer 36

Evapotranspiration

Question 37

______ of water vapor from the sub stomatal space into the atmosphere.

Answer 37

Diffusion

Question 38

2 TYPES of transpiration

Answer 38

Lenticular transpiration Cuticular transpiration

Question 39

In this process only 0.1% water is given of off the forms of vapor.

Answer 39

Lenticular transpiration

Question 40

Sometimes transpiration occurs through lenticels, the small opening in the corky tissue covering stems and twigs.

Answer 40

Lenticular transpiration

Question 41

Transpiration that occurs through cracks and cuticle of thin cuticle layers of leaves and stems.

Answer 41

Cuticular transpiration

Question 42

This is a day-night process, with 5-10% water is given out in the form of vapor.

Answer 42

Cuticular transpiration