The term for the water vapor loss from plant leaves is: MCQ with Answer and Explanation

The term for the water vapor loss from plant leaves is:
A. Transpiration
B. Evaporation
C. Condensation
D. Guttation
Answer: Option A
Solution (By JKExamLibrary)
Transpiration is the loss of water in the form of vapor from the aerial parts of plants, mainly through stomata. Evaporation is from any surface, guttation is liquid water loss, condensation is vapor to liquid.

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Practice More Biology Questions

Question #1
The technique used to measure the amount of light absorbed by a substance is:
A. Chromatography
B. Spectrophotometry
C. Centrifugation
D. Electrophoresis

Correct Answer: Option B


Explanation:
Spectrophotometry quantifies the concentration of a substance by measuring the absorbance of light at specific wavelengths. Chromatography separates mixtures, electrophoresis separates charged molecules, centrifugation separates by density/size. Spectrophotometers are widely used in biochemical and clinical labs.

This question belongs to: Science Biology
Question #2
Rickets in children is caused by the deficiency of:
A. Vitamin C
B. Vitamin D
C. Vitamin A
D. Vitamin B1

Correct Answer: Option B


Explanation:
Rickets is a childhood bone disorder caused by a severe deficiency of Vitamin D (Calciferol), or sometimes calcium or phosphate. Vitamin D is essential for the absorption of calcium and phosphorus from the gut. Its deficiency leads to soft, weak bones, resulting in skeletal deformities like bowed legs, delayed growth, and bone pain. Osteomalacia is the adult equivalent.

This question belongs to: Science Biology
Question #3
Who introduced the binomial nomenclature system?
A. Gregor Mendel
B. Carolus Linnaeus
C. Robert Hooke
D. Charles Darwin

Correct Answer: Option B


Explanation:
Carolus Linnaeus, a Swedish botanist, introduced the binomial nomenclature system in his book 'Species Plantarum' (1753). This system assigns a two-part scientific name—genus and species—to every organism. For example, Homo sapiens. Darwin proposed natural selection, Hooke discovered cells, and Mendel laid the foundation of genetics. Linnaeus is also known as the father of taxonomy. Binomial names are universally accepted and italicized in print.

This question belongs to: Science Biology