Practice free Growth and Development in Plants (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following is responsible for seed dormancy ?
Abscisic acid (ABA) is responsible for inducing and maintaining seed dormancy. It prevents seeds from germinating under unfavorable conditions by inhibiting the growth of the embryo within the seed.
Name the hormone responsible for activity of chlorophyll in leaves.
Which of the following is simple, volatile hormone ?
Ethylene is a simple, volatile hormone that is involved in various processes such as fruit ripening, leaf abscission, and stress responses. It is a gaseous hormone, which makes it volatile.
Which of the following statement about ABA is inappropriate ?
Abscisic Acid (ABA) does not induce ripening of fruit. Instead, it primarily inhibits seed germination, induces dormancy of buds, and closes stomata. Ethylene is the hormone responsible for fruit ripening.
Which hormone is absent in dormnant seed ?
Which of the following statement is true for abscisic acid ?
What is called the effect of daylight on plant ?
Photoperiodism is the physiological reaction of organisms to the length of day or night. It is most commonly observed in plants, where it affects flowering and other developmental processes.
Which of the following is found in high concentration in healthy leaf ?
Auxin is found in high concentration in healthy leaves. Auxins are plant hormones that play a crucial role in the growth and development of plants, including cell elongation, apical dominance, and root growth. They are primarily produced in the shoot apical meristem and young leaves.
Which hormones are obtained from fungi and fish, respectively ?
Vernalization means
Vernalization refers to the induction of a plant's flowering process by exposure to the prolonged cold of winter, or by an artificial equivalent. This process ensures that flowering occurs at the optimal time, typically in the spring, after the winter cold. Therefore, vernalization is associated with 'speedy flowering at low temperature'.
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