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Batrachospermum :Origin ,strucutre ,Thallus organisation and reproduction

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                                              Batrachospermum Occurrence:-   (1) Batrachospermum is fresh water alga.    (2) It is found in clear, cool, and running streams.   (3) Deepwater plants are dark violet or reddish in color. But the shallow-water species are olive green.   (4) The intensity of light changes the color of pigments.   (5) The thallus is attached to the substratum. Vegetative structure  (1) The thallus of an adult plant is soft, thick, filamentous.  (2) It is freely branched and gelatinous.   (3) The central axis is made up of a single row of large cells. Whorls of branches of limited growth        are developed on this axis.  (4) These branches are filamentous and dichotomously arranged.  (5) The main axis is corticated. It consists of a row of elongated cylindrical cells.   (6) It is differentiated into nodes and internodes.   (7) There are two types of branches that arise from the nodes:       Branches of limited growth        Branches of unlimited growth Batra
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Questions of cell structure and function

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                                   Cell Structure and Function Q.1. Which of the following not occur in mitochondria? A. Krebs Cycle B. glycolysis C. ETS D. ATP Synthesis Ans:- B Q.2. Which of the following is possessed by only bacteria, not by eukaryotes A. Cell Wall B. Cell Membrane C. Capsule D. Cilia Ans:- C Q.3. A major function of Golgi bodies or Dictyosomes is? A. In the modification of Protein B. In fermentation C. In light-independent photosynthesis D. For isolation of ETS chain Ans:- A Q.4. Which of the following is not surrounded by two membranes? A. Nucleus B. Chloroplast C. Mitochondria D. Complete Cell Ans: D Q.5. The cell wall of a plant cell contains pit fields called? A. Mitochondria B. Plasmodesmata C. Cell membrane D. Plasma Membrane Ans: B Q.6. Phragmoplast is formed by? A. Mitochondria B. Chloroplast C. Golgi bodies D. Endoplasmic reticulum Ans: D Q.7.The brain of the cell is called? A. Chlorop
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Classification and Characters of Polysiphonia

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                                    Polysiphonia  Classification :-                                                          Division :- Rhodophyta                                            Class :- Florideophyaecae                                             Order :- Ceramiale s                                            Family :- Rhodomelaece                                            Genus :- Polysiphonia Occurrence of Polysiphonia:    The genus Polysiphonia (Gr. poly — many; siphon — tube) is described by quite a hundred and fifty species, out of that concerning sixteen species ar according from Asian country.   They grow in marine environs and ar cosmopolitan in distribution. Commonly they're found in littoral and ocean floor zones.   In Asian country they're found in western and southern coasts. Commonly, they grow as lithophytes i.e., on rocks or stones (e.g., P. elongata), some species like P. urceola, P. terulacea grow as epip
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Bacteria and Bacteriophage Questions for NEET

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                                                                                     Bacteria & Bacteriophage Q.1. Bacteria Whose cell has only one curve   ? A   Vibro B   Bacillus C   cocci D Spiral Ans :- A Q.2. Plasmid Structure in Bacteria ? A Circular B Helix C Double Stranded D Linear Ans :- A Q.3. Mesosome in bacteria function as ? A Golgi bodies B Mitochondria C Cell Membrane D both a and b Ans :- D Q.4. Largest among sulphur bacteria are ? A Chlorobium B Thiobacillus C Charomatium D Beggiatoa Ans :- D Q.5. Provirus is ? A. A free DNA B. An integrated viral genome C. A virus D. A primitive virus Ans :- B Q.6. Cell Wall of bacteria composed of ? A. Cellulose B. N-acetyl glucosamine C. N-actyl murmaric acid D. Both B and C Ans:- D Q.7. Bacteria is differ from other lower plants ? A. DNA B. RNA C. Cell W
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Classification and Characters of Oedogonium

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Is Oedogonium unicellular or multicellular? What is the name of the basal cells in Oedogonium? Is Oedogonium autotrophic or heterotrophic? What is Macrandrous?                                     Oedogonium Classification:- Phylum – Algae category – Chlorophyaecae  Order – Oedogoniales  Family – Oedogoniaceae Genius - Oedogonium Thallus Character:- Oedogonium This order is basically a bunch of fresh-water algae. Members choose to grow in quieter things and shun flowing waters. They usually occur hooked up by a special stick cell. The plant body is un-branched (Oedogonium) or branched (Oedocladium, Bulbochaete). Filaments area unit created of organelle, cylindrical cells.   every cell is larger long than in width and contains a well developed reticulate plastid introduction of several pyrenoids. cellular division is exclusive. it'
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