Growth and Development in Plants — Important Questions
Telangana Open School (TOSS) · Class 12 · Biology
43 important questions from Growth and Development in Plants for Telangana Open School (TOSS) Class 12 Biology, with answers.
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Important Questions from Growth and Development in Plants
Which phase of growth shows the fastest increase in size?
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Log phase
The log phase, also called the exponential phase, is when the plant grows at the fastest rate during its life span.
Which instrument is used to measure the rate of shoot growth accurately?
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Auxanometer
An auxanometer is a device used to measure the rate of growth in plant shoots by detecting small changes in length.
Which external factor is essential for photosynthesis and seed germination?
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Light
Light is essential for photosynthesis and also plays a key role in seed germination, growth of seedlings, and reproduction.
What is the optimum temperature range for most plant growth?
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28–30°C
The optimum temperature for most plant growth is between 28–30°C, though growth can occur between 4–45°C.
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