Plants and Diffusion

Question 1

Xylem tissues

Answer 1

• Transport water from roots to leaves (it is a one ay traffic)

Question 2

Phloem tissues

Answer 2

• Transport prepared food (sugar) from leaves to other parts of the plant (substances can move both directions)

Question 3

Stomata

Answer 3

• Are tiny holes that are found mainly under the leaves that allows diffusion of gases such as carbon dioxide/oxygen and transpiration

Question 4

Transpiration

Answer 4

• Is movement of water through the stomata of a leaf

Question 5

Diffusion

Answer 5

• Diffusion is the movement of particles from a region of high concentration to low concentration

Question 6

Osmosis

Answer 6

• Is the movement of water from a high water concentration to low water concentration through semi permeable membrane

Question 7

Concentration gradient

Answer 7

• Gradual change in concentration of solutes in a solution as a function of distance through a solution.

Question 8

Passive transport

Answer 8

• Is the movement of molecules across a cell membrane from area of high/low concentration

Question 9

Active transport

Answer 9

• Movement of molecules across a cell membrane from low concentration to high concentration.

Question 10

Chloroplast

Answer 10

• Is site for photosynthesis

Question 11

Photosynthesis equation:

Answer 11

6H2O + 6CO2 –> C6H12O6+ 6O2

Question 12

Light phase

Answer 12

• Is the first stage of photosynthesis that produces ATP, NADPH and oxygen. It takes place in the grana portion and requires light.

Question 13

Photolysis

Answer 13

• Is splitting of water using sunlight energy to produce electrons, hydrogen ions and oxygens.

Question 14

Calvin cycle

Answer 14

• Fixes carbon dioxide to ribulose phosphate with the help of ATP and NADPH that produces sugar. No light required for this process and happens in stoma portion of the chloroplast.

Question 15

Ribulose diphosphate

Answer 15

• A compound to which carbon dioxide is fixed in calvin cycle to make sugar

Question 16

Cellular respiration equation:

Answer 16

C6H12O6 + 6O2 –> 6H2O + 6CO2 + 36ATP

Question 17

Aerobic respiration

Answer 17

• Respiration that requires oxygen

Question 18

Anaerobic respiration

Answer 18

• Respiration that occurs without oxygen

Question 19

Alcoholic fermentation

Answer 19

• Anaerobic respiration occurs in yeast cells then glucose will be turned to alcohol and carbon dioxide

Question 20

Lactic acid fermentation

Answer 20

• Anaerobic respiration occurs in muscle cells and in this process glucose will be converted to lactic acid

Question 21

Muscle cramp

Answer 21

• Is when pain occurs in muscle cells by build up of lactic acid due to anaerobic respiration

Question 22

ATP

Answer 22

• Is an energy storing molecule

Question 23

ATP synthase

Answer 23

• Are enzyme that makes ATP

Question 24

Glycolysis

Answer 24

• Is the first phase of cellular respiration which breaks down glucose C6H12O6 into 2 pyruvate molecules

Question 25

Pyruvate

Answer 25

- Is the product of glycolysis

Question 26

Krebs cycle

Answer 26

- Is the second phase of cellular respiration that involves the breaking down of pyruvate to NADH, FADH2, ATP and CO2

Question 27

Electron transport chain

Answer 27

- Is the final stage of cellular respiration that produces ATP from NADH and FADH2

Question 28

Female vs Male Flower Parts

Answer 28

Female Pistil: style, stigma and ovary Male Stamen: anther and filament

Question 29

Definition of Photosynthesis

Answer 29

- An enzyme controlled chemical process where plants produce glucose and oxygen from carbon dioxide and water, using only light as a source of energy.

Question 30

Requirements for photosynthesis

Answer 30

- Carbon dioxide from air. - Water absorbed from soil. - Radiant energy from sun. - Chlorophyll present in chloroplast.

Question 31

The colour of light used in photosynthesis

Answer 31

Red and blue