Plant Growth Questions & Answers
For All Agricultural Exams
Plant Physiology Plant Growth
| Questions | Answer | |
|---|---|---|
| 1 | Father of plant physiology ? | Stephan Hales |
| 2 | A diffusion of liquids through a semi-permeable membrane is known as ? | Osmosis |
| 3 | Responsible for the ability of plant roots to draw water from soil ? | Osmosis |
| 4 | In a pure solvent, the value of Osmotic potential which is its maximum value ? | Zero |
| 5 | The diffusion of solvent particles into a living cell or structure ? | Endo- Osmosis |
| 6 | The diffusion of solvent out of a living cell or structure ? | Exo- Osmosis |
| 7 | The soaking up/adsorption of water by dry substances due to hydrophilic colloids is known as ? | Imbibitions |
| 8 | The loss of water in the form of water vapour is termed as transpiration whereas in the form of liquid is known as ? | Guttation |
| 9 | Term Guttation is given by ? | Burgerstien |
| 10 | Foliar transportation is of two type ? | 1)Stomatal 2)Cuticular |
| 11 | Rate of transpiration is determined by ? | Photometer |
| 12 | Loss of sap (water) from the injured parts of the plant is known as ? | Bleeding |
| 13 | The process of converting light energy to chemical energy and storing it in the bonds of sugar is ? | Photosynthesis |
| 14 | Photosynthesis occurs in ? | Plants and some algae |
| 15 | The organelle of photosynthesis is ? | Chloroplast |
| 16 | The chlorophyll is built into the membranes of the ? | Thylakoids |
| 17 | Molecules that have evolved to absorb wavelengths in the visible region of the spectrum very well are called ? | Pigments |
| 18 | Non-cyclic photophosphorylation consists of two sets of pigments to excite which are called ? | Photosystem 1 & Photosystem 2 |
Plant Growth
| Questions | Answers | |
|---|---|---|
| 19 | Carbon fixing reactions are also known as the? | Dark Reactions |
| 20 | Photosynthesis active radiation (PAR)? | 400- 700 nm |
| 21 | Important accessory pigments in plants are Carotenoids ? | carotiens xanthophylls |
| 22 | The energy stored during photosynthesis in the form of? | ATP |
| 23 | The most effective colour of visible light spectrum for photosynthesis is ? | Red light |
| 24 | The site of primary photochemical reaction is ? | Quantasome |
| 25 | Calvin cycle occurs in ?(www.agriexam.com) | Chloroplast |
| 26 | C3 pathway for carbon dioxide fixation in certain tropical grasses were reported by ? | Hatch and Slack (1965) |
| 27 | Photorespiration was discovered by ? | Decker |
| 28 | Each Mitochondria is bounded by two lipoprotein and filled with the colorless fluid called ? | Matrix |
| 29 | Term photoperiodism was coined by ? | Garner and Allard (1920) |
| 30 | The cold treatment to a plant or a seedling in order to fulfil a specific low temperature requirement for accelerating the flowering is ? | Vernalisation |
| 31 | Term Vernalisation was coined by ? | T.D.Lysenko (1920) |
| 32 | Aerobic respiration of glucose produces? | 673 k cal energy |
| 33 | Krebs cycle is also called as ?(www.agriexam.com) | Citric acid cycle or tricarboxylic acid cycle (TCA) |
| 34 | Abscisic acid is considered the ? | “stress” harmone |
| 35 | In 1964 , the first naturally occurring cytokinin was isolated from corn called ? | Zeatin |
| 36 | Gibberellins were discovered by ? | Kurosowa (1926) |
Rate of transpiration determined by "Potometer"