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Plant Responses to Light-Dark Cycles
Based on their requirement for day length (number of hours of light) for flowering plants have been grouped under three major categories,
Figure: A diagrammatic representation to show the difference between a short-day plant (SDP) and a long-day plant (LDP). A SDP requires more than a critical period of darkness. In this case SDP needed more than 8 hrs of darkness or less than 16 hours of light to flower. A LDP requires a less than a critical hour of darkness or more than a certain hours of light. In this ease, LDP required more than 10 hours of light to flower.
Define about the Growth and development in children? Growth and development in children can be studied under the following heads: . • Changes in physical development and bod
Q. How many carbon dioxide (CO 2 ) molecules are liberated after each cycle of the Krebs cycle? For a single glucose how many carbon dioxide molecules were already liberated by the
How is the genetic determination of sex established in humans? In the diploid genome of human beings there are 46 chromosomes, 44 of them are autosomes and two are sex chromoso
Phosphorus deficiency Deficiency of phosphorus is usually primary and is widespread under natural conditions. It is characterized by pica, poor growth, infertility, and osteody
What is a glucose tolerance test? A glucose tolerance test, usually conducted in the 24 to 28 weeks of pregnancy measures levels of sugar (glucose) in the mother's blood. Abnor
Q. What are the cytochromes? Cytochromes are proteins of the interior mitochondrial membrane that are specialized in electron transfer and participate in the respiratory chain.
What's the diffrenent between regeneration and repair ? Regeneration: replacement of the destructed tissue by the same type of tissue Repair : replacement of the destru
Q. Which is the part of the human visual system where the receptors that sense light, i.e., the photoreceptor cells, are located? How do those cells work? The photoreceptor cel
Why plants need to do exchange gases with the environment? The Plants need to do gas exchange because they create aerobic cellular respiration (like animals) and they need to r
Indications for Surgery : Patients usually present with fatigue, dyspnoea and ventricular arrhythmias. If they have additional tricuspid regurgitation, pulmonary valve replacement
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