Which of the following algae contains mannitol as reserve food material
Which of the following algae contains mannitol as reserve food material
Ulothrix
Ectocarpus
Gracilaria
Volvox
The Correct Option is B
Solution and Explanation
To determine which algae contains mannitol as a reserve food material, let's examine the characteristics of each option given in the question:
- Ulothrix: This is a green alga and employs starch as its primary reserve food material, not mannitol.
- Ectocarpus: This is a brown alga, which is part of the Phaeophyceae class, where mannitol and laminarin are commonly used as reserve food materials.
- Gracilaria: This is a red alga known for storing floridean starch, not mannitol.
- Volvox: This belongs to the green algae group and stores starch similar to other green algae, not mannitol.
Therefore, Ectocarpus is the correct answer as it specifically uses mannitol as a reserve food material. This aligns with the general characteristics of brown algae, where mannitol is commonly found as an energy storage molecule.
Conclusion: Based on the characteristics of the different types of algae, Ectocarpus contains mannitol as a reserve food material.
Top Questions on Eco-System
- Which of the following pyramid is inverted?
- MHT CET - 2025
- Biology
- Eco-System
- Detritivores breakdown detritus into smaller particles. This process is called:
- NEET (UG) - 2023
- Biology
- Eco-System
Given below are two statements:
Statement I: Gause’s ‘Competitive Exclusion Principle’ states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated eventually.
Statement II: In general, carnivores are more adversely affected by competition than herbivores.In the light of the above statements, choose the correct answer from the options given below:
- NEET (UG) - 2023
- Biology
- Eco-System
- Identify the correct statements:A. Detrivores perform fragmentation.B. The humus is further degraded by some microbes during mineralization.C. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.D. The detritus food chain begins with living organisms.E. Earthworms break down detritus into smaller particles by a process called catabolism.Choose the correct answer from the options given below:
- NEET (UG) - 2023
- Biology
- Eco-System
In the equation GPP - R = NPP
GPP is Gross Primary Productivity
NPP is Net Primary ProductivityR here is ________.
- NEET (UG) - 2023
- Biology
- Eco-System
Questions Asked in NEET exam
A constant voltage of 50 V is maintained between the points A and B of the circuit shown in the figure. The current through the branch CD of the circuit is :
- NEET (UG) - 2025
- Current electricity
The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.
- NEET (UG) - 2025
- Logic gates
- A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is:
- NEET (UG) - 2025
- Displacement Current
What is Microalbuminuria ?
- NEET (UG) - 2025
- Human physiology
In the above represented plasmid an alien piece of DNA is inserted at the EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?
- NEET (UG) - 2025
- Genetic Engineering and Biotechnology
Concepts Used:
Pteridophytes
Pteridophytes are the first terrestrial vascular plants. Carolus Linnaeus classified them under the group cryptogamae. Pteridophytes occupy a transitional position between bryophytes and spermatophytes.
For Example, Silver fern, Equisetum, Selaginella
The general characteristics of Pteridophytes are:
- They are seedless.
- They are multicellular.
- They reproduce through spores.
- They are independent and free-living organisms.
- They have a well-differentiated plant body into root, stem and leaves.
Classification of Pteridophytes:
Life Cycle of Pteridophyta:
