Plant Pathology - Study Mode
[#341] Condition favouring cyclic photophosphorylation is
Correct Answer
(B) Aerobic and low light intensity
Explanation
Solution: Condition favouring cyclic photophosphorylation is Aerobic and low light intensity. Cyclic photophosphorylation occurs on the stroma lamella, or fret channels. In cyclic photophosphorylation, the high-energy electron released from P700, a pigment in a complex called photosystem I, flows in a cyclic pathway. It is favoured in anaerobic conditions and conditions of high irradiance and CO 2 compensation points.
[#342] One of the following is a C 4 plant
Correct Answer
(A) Sugarcane
Explanation
Solution: One of the following is a C 4 plant Sugarcane. C 4 carbon fixation is one of three known photosynthetic processes of carbon fixation in plants. C 4 plants including maize, sugarcane, and sorghum avoid photorespiration by using another enzyme called PEP during the first step of carbon fixation.
[#343] Which one shows meiosis?
Correct Answer
(C) Pollen grain
Explanation
Solution: Pollen grain shows meiosis. Microsporogenesis in the anther involves the meiotic division of pollen mother cells, which each produce four microspores. Meiosis occurs in the anthers. Cells called pollen mother cells to undergo meiosis. If a plant is diploid, each haploid product of meiosis (unicellular microspore) divides mitotically, but asymmetrically, to give two haploid cells.
[#344] Glycolysis is
Correct Answer
(C) C 6 H 12 O 6 ⟶ 2C 3 H 4 O 3 + 4H
Explanation
Solution: Glycolysis is C 6 H 12 O 6 ⟶ 2C 3 H 4 O 3 + 4H. Glycolysis is the metabolic pathway that converts glucose (C 6 H 12 O 6 ) into pyruvate. The free energy released in this process is used to form the high-energy molecules adenosine triphosphate (ATP) and reduced nicotinamide adenine dinucleotide (NADH). Glycolysis is a metabolic pathway that does not require oxygen. Glycolysis is a sequence of ten reactions catalyzed by enzymes.
[#345] Vertifolia effect is characterized by the loss of
Correct Answer
(A) Horizontal resistance
Explanation
Solution: Vertifolia effect is characterized by the loss of Horizontal resistance. The Vertifolia effect is a well-documented phenomenon in the fields of plant breeding and plant pathology. It is characterized by the erosion of a crop's horizontal resistance to disease during a breeding cycle due to the presence of strong vertical resistance, characterized by the presence of R genes.