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Doctors Medicines MCQs Q&A

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Consider the following statements and choose the correct answer:
1. Transpiration usually occurs during day-time whereas guttation takes place in night
2. In transpiration water comes out in the form of liquid, whereas in guttation the water is given off in the form of vapour
3. Transpiration water is pure but guttation water contains inorganic salts and sugars
4. Transpiration is a controlled phenomenon whereas guttation is an uncontrolled phenomenon
Study the following statements.
1. Excretion of water in the form of liquid droplets from leaves or uninjured plant parts is called gullation.
2. Transpiration help in ascent of sap.
3. Small opening in the leaf meant for gaseous exchange and transpiration is called stomata.
Which of the statements given above are correct ?
Which of the following statements about transpiration are correct? Statement 1: Low temperature increases the transpiration rate. Statement 2: Transpiration leads to water and vapor loss.
Quantity I: In a party, 75% of the total number of female is equal to 50% of the total number of male then the number of female is what percentage of the total number of person in the party?  Quantity II: In a school, 66.66% of the total number of girls is equal to 40% of the total number of boys then the total number of girls is what percentage of the total number of students of the school? 
During day, when the stomata are open, the transpiration pull becomes the major driving force in the movement of water in the xylem.
Consider the following statement.  A. Transpiration takes place through a special opening called stomata.  B. It is also a process of excretion for plants.  C. The process acts as a cooling agent for plants.  D. It usually takes place at the stem of plants. Which among the following statements are true?
Statement A: Transpiration creates pressure in xylem sufficient enough to transport water up to 130 m high. Statement B: Transpiration creates a pushing force.
A crop is being tested in the lab to its loss due to transpiration. Given that initial weight of instrument is 100 kgs, and final mass of instrument is 150 kgs. The amount of water added during full growth of plant is 70 kgs. Find the loss due transpiration when the method used is phytometer method?
Consider the following statements and choose the correct answer:
1. Evaporation is a vital physiological process
2. Transpiration is restricted to living bodies only
3. Evaporation is as low loss of water molecules to the unsaturated atmosphere from the free exposed surface among living and non-living bodies
4. Transpiration is simply a loss of water molecules which do not involve any pressure
From the transpiration rate data, it appears that transpiration rate rises as