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Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence: A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte
Hydrocolloid carrageen is obtained from:
In oogamy, fertilization involves:
Which of the following is incorrectly matched?
Which of the following is the correct match?
Match the plant with the kind of life cycle it exhibits: List-I (a) Spirogyra (b) Fern (c) Funaria (d) Cycas List-II (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte (ii) Dominant haploid free-living gametophyte (iii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus (iv) Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte
Sexual reproduction in Spirogyra is an advanced feature because it shows:
The phenetic classification of organisms is based on:
Identify the incorrect pair regarding the classification of Pteridophytes:
Cycas have two cotyledons but are not included in angiosperms because of:
A student observed algae with chlorophyll 'a', 'd', and phycoerythrin. It should belong to:
Water is essential for Bryophyta:
When one CO2 molecule is fixed, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase of the Calvin cycle?
The products of light reaction in photosynthesis are:
In chloroplast, the highest number of protons are found in?
Which of the following is not a product of light reaction of photosynthesis?
Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option:
Which one of the following is not true regarding the release of energy during ATP synthesis through chemiosmosis? It involves:
Which of the following is an incorrect statement?
Oxygen is not produced during photosynthesis by: