Q & A on Components of Cytoplasm
Which organelle divides and compartmentalizes the cell? The endomembrane system, which fills the cell and divides it into compartments, and is visible only through electron microscopy. The endoplasmic reticulum (ER), a series of interconnected membranous tubes and channels in the cytoplasm, is the largest and most extensive system of the internal membranes. What is the function of the endomembrane system? The endomembrane system allows macromolecules to diffuse or be transferred from one of the components of the system to another. What is the difference between rough and smooth endoplasmic reticulum? Rough endoplasmic reticulum are regions rich in ribosomes that manufacture proteins. These regions appear to have a pebbly surface that is somewhat similar to sand-paper.…
Movement of Substances Quiz
Types of Classification System
Biological classification is the scientific procedure of arranging organisms into groups on the basis of their similarities and dissimilarities and placing the groups in a hierarchy of categories like species, genus, family, etc
Type of Classification System Quiz
[wp_quiz id=”5010″]
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…
Biotechnology: Principles and Processes Quiz
[wp_quiz id=”4960″]
EXCRETORY PRODUCTS AND THEIR ELIMINATION QUIZ
The living world and Taxonomy Flashcards
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.…
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.).…
