Biology·MCQ Practice

Economic Importance — MCQ Practice

NEET UG
Version 1Updated 21 Mar 2026

Interactive MCQ Practice

Test your knowledge. Click “Solve” to reveal options, select your answer, then check the result. 6 questions available.

Q1easy

Which of the following phycocolloids is primarily extracted from red algae and is widely used as a solidifying agent in microbiological culture media?

Q2easy

Which of the following microalgae is renowned for its exceptionally high protein content (up to 70%) and is widely consumed as a dietary supplement?

Q3medium

Harmful algal blooms (HABs) can cause significant economic losses due to all of the following reasons EXCEPT:

Q4easy

Diatomaceous earth, an economically important product, is formed from the fossilized cell walls of which algal group?

Q5medium

Which of the following cyanobacteria is commonly used as a biofertilizer in paddy fields due to its nitrogen-fixing ability?

Q6easy

Which of the following is a beneficial application of algae in environmental management?

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