Phytotron is a device by which
- mutations are produced in plants
- plants are grown in controlled environment
- protons are liberated
- leaf fall occurs on abscission layer
The Correct Option is B
Solution and Explanation
Top Questions on Growth
- Which of the following is the best sign to indicate adequate growth in an infant with a birth weight of 2.8 kg?
- Growth can be measured by:
- Population growth curve is sigmoid, if the growth pattern is
- Auxenometer is used to measure :
- The vascular cambium and cork cambium are the examples of
Questions Asked in AIIMS exam
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.
Reason (R) : Liberation of oxygen is due to photolysis of water.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Photosynthesis in higher plants
- Match the following column I with column II.
- AIIMS - 2019
- cloning
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : The Cro-Magnon man was the direct ancestor of the living modern man.
Reason (R) : Cro-Magnon man had slightly prognathous face.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- evolution
- Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion: Orbit of a satellite is within the gravitational field of earth whereas escaping is beyond the gravitational field of earth.
Reason: Orbital velocity of a satellite is greater than its escape velocity.
In the light of the above statements, choose the correct answer from the options given below- AIIMS - 2019
- Gravitation
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In eukaryotes, transcription occurs in nucleus.
Reason (R) : In bacteria, transcription and translation occurs in cytoplasm.
In the light of the above statements, choose the correct answer from the options given below
- AIIMS - 2019
- Transcription
Concepts Used:
Growth
Growth takes place all throughout the lifetime, but imminently. In the case of humans, the rate of growth is rapid until maturity. After achieving maturity, growth is gradual and slows down before it completely comes to an end.
Types of Growth:
- Primary and Secondary Growth: In meristematic cells, the mitotic divisions at the root and shoot apex hike the length of the plant, called Primary Growth while Secondary meristem, which results in an increased diameter of the plant is commonly known as Secondary Growth.
- Vegetative Growth: Prior to flowering, the growth in plants is known as vegetative growth and that includes the formation of leaves, branches, and stems.
- Reproductive Growth: At this stage, the plants begin to flower which is a reproductive member of the plant.