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Maximum photosynthesis occurs in which of these lights ?
Maximum photosynthesis typically occurs under red light. Red light (around 680 nm) is most effectively absorbed by chlorophyll a, the main pigment involved in photosynthesis. Thus, red light drives the highest rate of photosynthesis compared to other wavelengths.
In C4 plants showing Kranz anatomywhichof the following is correct ?
In C4 plants, the Kranz anatomy is characterized by bundle sheath cells that lack grana and mesophyll cells that contain grana. This specialization allows for the efficient functioning of the C4 photosynthetic pathway, which minimizes photorespiration and maximizes photosynthetic efficiency.
Chlorophyll a is absent in which of the following photosynthesising organisms ?
Chlorophyll a is absent in bacteria. Bacteria use different pigments such as bacteriochlorophylls for photosynthesis, which are distinct from the chlorophylls found in plants, algae, and cyanobacteria.
Photorespiration in C3 plants starts from.
Photorespiration begins in the chloroplast, when rubisco attaches oxygen to RuBP in its oxygenase reaction. Two molecules are produced in this reaction: a three-carbon compound, 3-PGA, and a two-carbon compound, phosphoglycolate.
Who is that scientist who gave the Law of limiting factors ?
The Law of Limiting Factors was formulated by F. F. Blackman. This law states that the rate of a physiological process will be limited by the factor that is in the shortest supply. In the context of photosynthesis, this means that the rate can be limited by light intensity, carbon dioxide concentration, or temperature, depending on which is the least available or most restrictive at any given time.
How many electrons are involved for the formation of 1 mole of glucose and 6O2 molecules ?
If the rate of a chemical reaction at 30 degree celcius is 4R then what will be the rate of the reaction when temperature becomes 10 degree celcius ?
rate doubles with every 10 degree celcius increase in temperature and decreases by half with decrease in 10 degree celcius
Stomata of CAM plants
CAM (Crassulacean Acid Metabolism) plants open their stomata at night to minimize water loss while allowing CO2 to enter for photosynthesis. During the day, the stomata are closed to conserve water. This adaptation is particularly useful in arid conditions.
In the Davisson and Germer experiment, the velocity of electrons emitted from the electron gun can be increased by
In the Davisson and Germer experiment, the velocity of the electrons emitted from the electron gun can be increased by increasing the potential difference between the anode and the filament. A higher potential difference accelerates the electrons to higher velocities.
One of the following is electron donor to Pd680d during light reactions photosynthesis
In the light reactions of photosynthesis, water (H2O) acts as the electron donor to Photosystem II (PSII), which contains P680 chlorophyll molecules. Water is split into oxygen, protons, and electrons through a process called photolysis. The electrons released from water replenish the electron deficit in P680 after it gets excited by light energy.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.