Factors Affecting Plant Growth
Trending Questions
Q.
What happens to plant growth when the supply of essential elements is limited?
Q. In sigmoid growth curve, the exponential phase slows down leading to a stationary phase due to
- halting of respiration
- genetic nature
- limited nutrient supply
- absence of differentiation
Q. In sigmoid growth curve, the exponential phase slows down leading to a stationary phase due to
- halting of respiration
- genetic nature
- limited nutrient supply
- absence of differentiation
Q. Growth is primarily affected by two climatic factors which are
- light and temperature
- wind and soil
- light and soil nitrogen
- Humidity and phytohormones
Q. Assertion: Plant growth and development is intimately linked with the water status of plant cells.
Reason: Guttation is the process of water loss from hydathodes.
Reason: Guttation is the process of water loss from hydathodes.
- Both assertion and reason are true and reason is the correct explanation of assertion
- Both assertion and reason are true but reason is not the correct explanation of assertion
- The assertion is true but reason is false
- Both assertion and reason are false
Q.
Match of following columns
column-Icolumn-IIA.Water1.Release of metabolic energyB.Oxygen2.Optimum enzymatic activityC.Nutrients3.Cell enlargement/turgidityD.Temperature4.Synthesis of protoplasm
- A - 1 , B - 2 , C - 3 , D - 4
- A - 4 , B - 3 , C - 2 , D - 1
- A - 3 , B - 4 , C - 2 , D - 1
- A - 3 , B - 1 , C - 4 , D - 2
Q. Select out the incorrect match with respect to plant growth requirements among the following:
- Water → Cell metabolism
- Oxygen → Enzyme activation
- Minerals → Osmotic regulation
- Light → Flowering
Q. Select out the incorrect match with respect to plant growth requirements among the following:
- Water → Cell metabolism
- Oxygen → Enzyme activation
- Minerals → Osmotic regulation
- Light → Flowering
Q. Assertion: Plant growth and development is intimately linked with the water status of plant cells.
Reason: Guttation is the process of water loss from hydathodes.
Reason: Guttation is the process of water loss from hydathodes.
- Both assertion and reason are true and reason is the correct explanation of assertion
- Both assertion and reason are true but reason is not the correct explanation of assertion
- The assertion is true but reason is false
- Both assertion and reason are false
Q.
Few normal seedlings of tomato were kept in a dark room. After a few days, they were found to have become white-colored like albinos. Which of the following terms will you use to describe them?
Mutated
Embolised
Etiolated
Defoliated
Q. Which of the following is not an example for plant growth?
- A plant of 1m in length becomes a 2m long plant
- Annual ring formation
- The length of a wooden log thrown in a river increases by 1 centimeter
- Formation of cambium