• Biology

    MCQ on Respiration in plant

    Q1) Out of 36 ATP molecules produced per glucose molecule during respiration(A) 2 are produced outside glycolysis and 34 during the respiratory chain.(B) 2 are produced outside mitochondria and 34 inside mitochondria.(C) 2 during glycolysis and 34 during the Krebs cycle.(D) all are formed inside mitochondria. Q2) Respiratory substrate yielding the maximum number of ATP molecule is(A) ketogenic amino acids(B) glucose(C) amylose(D) glycogen Q3) Fermentation is anaerobic production of(A) protein and acetic acid(B) alcohol, lactic acid or similar compounds(C) ethers and acetones(D) alcohol and lipoproteins Q4) In alcoholic fermentation(A) oxygen is the electron acceptor.(B) triose phosphate is the electron donor while acetaldehyde is the electron acceptor.(C) triose phosphate is the electron donor while…

  • Biology,  Zoology

    Phylum Protozoa

    Protos—first, Zoan—animal, First animal phylum Study of protozoans called Protozoology Father of protozoology – Antony von Leeuwenhoek Term Protozoa was assigned by Goldfuss Protozoa belong to Kingdom Protista of Haeckel Single-celled, solitary or colonial, eukaryotes Important characters Size ranges from 1µ to 5000µ Aquatic – freshwater or marine forms, or endoparasites Grade of organization– protoplasmic or subcellular Locomotion by cilia, flagella or pseudopodia, or absent Skeleton – may or may not be present; if present then either calcareous or siliceous. Foraminifers have external shell of CaCO3 ( ex. Polystomella), whereas Radiolarians have internal plates of silica Osmoregulation by contractile vacuole in freshwater protozoans (isotonic to 0.8 % NaCl solution). C.V.…

  • Biology,  Zoology

    Animal Kingdom

    Animal Kingdom covers about 35-phyla, of which 11 are considered to be major phyla. In major phyla, 10 are from Non-chordates and 1 from chordates. The 11-major phyla are – Phylum Protozoa: single-celled (solitary or colonial)Eukaryotes Phylum Porifera: Sponges Phylum Cnidaria: Jellyfishes and sea anemones Phylum Ctenophora*: Comb jellies Phylum Platyhelminthes: Flat warms Phylum Aschelminthes: Roundworms or threadworms. Phylum Annelida: Segmented worms (Earthworm, Leech etc.) Phylum Arthropoda: Jointed legged-invertebrates Phylum Mollusca: Snails, bivalves, octopus etc. Phylum Echinodermata: Seastar, Brittle star, Sea lily etc. Phylum Chordata: Protochordates and vertebrates (*As Ctenophora includes less than 100 species, it is generally considered as a Minor Phylum with Rotifera, Phoronida, Brachiopoda and Gastrotricha etc.).…

  • Biology

    FIVE KINGDOM SYSTEM

    In this lesson, we discussing five kingdom classification. Five kingdom classification is proposed by R.H.Whittaker in 1969. the kingdom defined by him were named Monera, Protista, Fungi, Plantae, and Animalia. In this lesson, we show a brief introduction to these kingdoms for more information on kingdom please visit a particular lesson on that kingdom. Main Criteria used for this classification are cell structure, thallus organization, mode of nutrients, reproduction and phylogenetic relationship. Besides these major characteristics, he has also given importance to characters of ecological role-played and mode of reproduction. Major criteria on which five-kingdom classification is based Criterion Kingdom Monera Protista Plantae Fungi Animalia Cell type Prokaryotic Eukaryotic Eukaryotic Eukaryotic Eukaryotic…