Consider the following statements about fungal spores: 1. They are generally present in the air. 2. They require dry and cold conditions to germinate. 3. They are the reproductive units of the fungi. Which of the statements given above is/are correct?

The correct option is (c). Explanation Fungi are eukaryotic organisms that reproduce primarily through the release of spores. These spores act as biological particles for dispersal and propagation, functioning analogously to seeds in plants. Statement-wise Analysis: - Statement 1 is Correct: Fungal spores are microscopic and extremely lightweight. This allows them to remain suspended in the atmosphere and be dispersed by wind, water, or animals. Consequently, they are generally ubiquitous in the air. - Statement 2 is Incorrect: Fungal spores require warm and humid (moist) conditions to germinate and grow. Dry and cold conditions are unfavorable for germination and are typically used to inhibit fungal growth (e.g., refrigeration). - Statement 3 is Correct: Spores are the fundamental reproductive units of fungi. Upon landing on a suitable substrate with adequate moisture and temperature, they germinate to form new fungal filaments (hyphae). Key Takeaway: Fungal spores are airborne reproductive structures that necessitate moisture and warmth for germination; they remain dormant or fail to grow in dry and cold environments.

Consider the following statements about fungal… - NCERT Class 7 Science MCQ

NCERT Class 7 Science — Chapter 1: Nutrition in plants

mcqmedium

Consider the following statements about fungal spores:

They are generally present in the air.
They require dry and cold conditions to germinate.
They are the reproductive units of the fungi.

Which of the statements given above is/are correct?

NCERT textbook question

From NCERT Science - class 7 · Page 6

Options

A1 and 2 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (c).

Explanation

Fungi are eukaryotic organisms that reproduce primarily through the release of spores. These spores act as biological particles for dispersal and propagation, functioning analogously to seeds in plants.

Statement-wise Analysis:

Statement 1 is Correct: Fungal spores are microscopic and extremely lightweight. This allows them to remain suspended in the atmosphere and be dispersed by wind, water, or animals. Consequently, they are generally ubiquitous in the air.
Statement 2 is Incorrect: Fungal spores require warm and humid (moist) conditions to germinate and grow. Dry and cold conditions are unfavorable for germination and are typically used to inhibit fungal growth (e.g., refrigeration).
Statement 3 is Correct: Spores are the fundamental reproductive units of fungi. Upon landing on a suitable substrate with adequate moisture and temperature, they germinate to form new fungal filaments (hyphae).

Key Takeaway:
Fungal spores are airborne reproductive structures that necessitate moisture and warmth for germination; they remain dormant or fail to grow in dry and cold environments.

Your note

More from Chapter 1: Nutrition in plants

Consider the following statements regarding the relationship between legumes and Rhizobium: 1. It is an example of a symbiotic relationship. 2. The bacteria provide food and shelter to the plant. 3. The plant provides nitrogen to the bacteria. Which of the statements given above is/are correct?

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With reference to saprotrophic nutrition, consider the following statements: 1. It is a mode of nutrition where organisms take in nutrients from dead and decaying matter. 2. Fungi ingest dead matter directly without secreting digestive juices. 3. All fungi are harmful and cause spoilage of food and diseases. Which of the statements given above is/are correct?

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Consider the following statements about the transport system in plants: 1. Roots absorb water and minerals from the soil. 2. The transport vessels are restricted to the roots and do not reach the stem. 3. The vessels form a continuous network reaching the leaves. Which of the statements given above is/are correct?

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Which one of the following crops is a legume capable of symbiotic nitrogen fixation via Rhizobium?

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Consider the following statements about the digestive process in saprotrophs: 1. They digest food externally before ingestion. 2. They secrete digestive juices inside their bodies. 3. They absorb nutrients in solution form. Which of the statements given above is/are correct?

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