Plant Anatomy And Physiology - Study Mode
[#576] When the long-day plant Sedum spectabile was grafted to the short-day plant Kalanchoe blossfeldiana, it
Correct Answer
(A) Flowered under short-day conditions
[#577] The rate of photosynthesis is
Correct Answer
(C) Inversely proportional to the concentration of the end products
[#578] As a rule, which of the following is/are destroyed by the impact of the pollen tube and the others remain intact until some time afterward?
Correct Answer
(A) Only one synergid
[#579] Consider the following statements and choose the correct answer: 1. The waters of estuaries are among most naturally fertile in the world 2. The high productivity in estuaries is brought about by the action of tides, which promote a rapid circulation of nutrients and aid in the removal of waste products 3. "Mariculture" is done in the oyster farms of Japan where oysters are grown suspended on rafts hanging from floats 4. Estuaries and marshes are among the ecologic regions of the world that are most seriously threatened by human activities
Correct Answer
(D) 1, 2, 3 and 4 are true
[#580] On receiving the required light energy, a chlorophyll molecule gets changed from ground state to excited state. This activated state is called
Correct Answer
(A) Excited singlet state