Plant Physiology

Question 1

PLANT PHYSIOLOGY

Answer 1

How plants function
growth
Osmosis
conduction
transpiration
respiration 
photosynthesis

Question 2

IMBIBITION

Answer 2

Process where tissue soak up water
Important step in uptake in water which leads to osmosis
precursor to germination seeds soak up water

Question 3

OSMOSIS

Answer 3

The process of a solvent in preference to a solute through a semi permeable membrane
solvent moves from weaker solution to stronger solution
root hairs use osmosis for water transfer from soil outside of plant

Question 4

DIFFUSION

Answer 4

The movement of molecules (or ions) from a region of higher concentration to a region of lower concentration…movement continues until an equilibrium is reached
No membrane

Question 5

TRANSPIRATION

Answer 5

Transpiration: the release of excess water (in the form of vapour) from the internal tissues of a plant, through the aerial parts [most of it through the stomata; singular – stoma or stomatae]
Transpiration pull creates suction for Xylem

Question 6

PHOTOSYNTHESIS

Answer 6

The the process by which green cells in the presence of light produce carbohydrates from carbon dioxide and water which releases oxygen as a by product

Question 7

PHOTOSYNTHESIS FORMULA

Answer 7

6CO2+6H20—–> C6H12O6+602

Question 8

RESPIRATION

Answer 8

The process of oxidation and breakdown of organic compounds (carbs)
oxygen used to burn carbs into energy
can occur in absence of light

Question 9

RESPIRATION FORMULA

Answer 9

C6H12O6+602——>6CO2+6H20

+ENERGY

Question 10

ANEROBIC RESPIRATION

Answer 10

Under conditions of low oxygen, some plants are able to ‘respire’ for short periods in the absence of oxygen. Carbohydrates are incompletely ‘burned’ ethyl alcohol is produced and very low levels of energy released: C6H12O6 2C2H5OH + 2CO2 + En (low)