Prepare for NEET Biology Biological Classification with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to classify and identify organisms.
The symbiotic relationship in a lichen involves a fungus and which other organism?
Protozoa
Algae or cyanobacteria
Bryophytes
Bacteria
The symbiotic association between a fungus and the roots of a higher plant is known as mycorrhiza. Which of the following is NOT a benefit conferred by the fungus to the plant in this association?
Increased absorption of water and minerals
Protection against certain soil pathogens
Enhanced tolerance to drought and salinity
Nitrogen fixation from the atmosphere
Lichens are a symbiotic association between:
Algae and bacteria
Fungi and bacteria
Algae and fungi
Protozoa and fungi
In a lichen, the fungal partner primarily provides:
Food through photosynthesis
Structure and protection
Nitrogen fixation
Water absorption
The symbiotic association between a fungus and the roots of higher plants is known as:
Lichen
Mycorrhiza
Parasitism
Commensalism
Pinus seeds struggle to germinate and establish themselves in the absence of a fungal partner. Why is this the case?
Its seeds require mycorrhizae for essential nutrient absorption.
Its seeds need specific light wavelengths provided by the fungus.
The fungus produces growth hormones necessary for seed germination.
The fungus protects the seeds from pathogenic soil microbes.
Mycorrhizal associations are crucial for the successful establishment of Pinus seedlings. Which of the following best describes the primary benefit Pinus seeds derive from this symbiotic relationship?
Protection from soil-borne pathogens.
Provision of essential growth hormones.
Enhanced absorption of phosphorus and other essential nutrients.
Improved access to specific light wavelengths.
Which nutrient is particularly crucial for the development of Pinus seedlings and is obtained more effectively through their symbiotic association with mycorrhizal fungi?
Nitrogen
Potassium
Phosphorus
Magnesium
If a Pinus seed were to germinate in sterile soil lacking mycorrhizal fungi, what would be the most likely outcome?
Enhanced growth due to lack of competition.
Normal growth and development.
Poor growth and reduced survival rate
Increased susceptibility to pathogenic microbes.
The relationship between Pinus seeds and mycorrhizal fungi can best be described as:
Parasitic
Commensalistic
Mutualistic
Amensalistic
