0% 0 Biology Quiz 1 1 / 50 Un-separated replica of chromosome is called___________? Centromere Kinetochore Chromatid Chromatin 2 / 50 Which one of them is a micro-molecule? Protein Polysaccharide ATP Hemoglobin 3 / 50 The word which E-Chatton suggested for bacteria and blue green algae was_____________? Heterotrophs Eu-cariotique Autotrophs Pro-cariotique 4 / 50 The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by________? Social biologist Environmental biologist Marine biologist Paleontologist 5 / 50 Intake of liquid material by cell membrane is called___________? Exocytosis Endocytosis Pinocytosis Phagocytosis 6 / 50 The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________? Thermoregulation Hemostasis Osmoregualtion Homeostasis 7 / 50 Chlorophylls are found embedded in the __________ membranes? Grana Intergrana Thylakoid Stroma 8 / 50 Biological sciences have a set methodology and it is based on ? Experimental inquiry Philosophical ideas Imaginations Esthetic preference 9 / 50 It is one of the convulsive disorders of nerves which are characterized by abrupt transient symptoms of motor, sensory, psychic or autonomic nature________________? Dementia Epilepsy Alzheimer?s discease Parkinson?s disease 10 / 50 Number of cervical vertebrae is_____________? 12 7 9 5 11 / 50 The diffusion of ions along with water also takes place by mass flow system along the ________ path? Apoplast Vacuolar Tonoplast Symplast 12 / 50 Which of the following group represent pathological fungi______________? Penicillium Rusts smuts and molds All of these Mushrooms morels and truffles 13 / 50 Of the following which one is not the characteristic of green algae? Chlorella is unicellular non-motile green algae They are generally accepted as the ancestors of green plants Some green algae possess cell wall with cellulose None of these 14 / 50 Artherosclerosis is a major condition leading to__________? hypertension stroke tumor heart attack 15 / 50 The size of smallest virus is______________? 10 nm 40 nm 30 nm 20 nm 16 / 50 Non polar organic molecules are ___________ in water? Depends upon condition Insoluble Partially soluble Soluble 17 / 50 A group of ribosomes attached to mRNA is known as___________? Polymer Polypeptide Polysomes Monomer 18 / 50 Genes will not be found in gene pairs in the_____________? Uterine cells of dog Muscle cell of worm Guard cells of leaf Sperm cells of frog 19 / 50 Which of the follwing is a childhood disease resulting from nutritive Ca2+ deficiency? Rickets. Tetany Hypocalcaemia Tatanic spasms. Osteomalacis. 20 / 50 ___________ function as multisensory hydraulic valve? Lenticels Guard cells All of these Hydathods 21 / 50 Pulling upward of water and dissolved minerals towards the leaves through the xylem tissue is called__________? Transpiration pull All of these Root pressure Ascent of sap. 22 / 50 Terrestrial animals like kangaroo rat survive even without drinking water since__________? They are anhydrobiotic organisms They can retain excessive water in their body during raining season. They don?t require water for their metabolic process They feed on carbohydrate rich seeds which can provide them with metabolic water 23 / 50 Which of the following are triploblastic and acoelomate? Platyhelminthes Annelida Sponges Aves 24 / 50 Which of the statement about cell membrane is not true? It contains protein molecules embedded in lipid bilayer It may get infolded to engulf solid or liquid material. It is a differentially permeable membrane. It contains charged pores thus ions being charged particles cross cell membrance much easier than neutral particles. 25 / 50 It is the measure of force with which blood pushes up against the walls of blood vessels. Blood pressure Cardiac output Blood flow Stroke volume 26 / 50 Which of the following help cyanobacteria to locomote? None of these Flagella Gas vesicles Both of these 27 / 50 All are functions of hypothalamus, but, _________ ? Regulation of anti-diuretic hormones Regulation of sleep and emotions Regulation of blood osmotic pressure Regulation of body temperature 28 / 50 The plant dye Henna imparts orangered colour to skin and hairs due to its reaction with which of the following? Protein and amino acids Lipids Amino acids Carbohydrates 29 / 50 Enzymes __________________ the activation energy of a chemical reaction? Does not effect Increases or decreases depending upon individual enzyme Decreases Increases 30 / 50 which of the following gas discovered by Scheele? hydrogen carbon dioxide chlorine oxygen 31 / 50 Epinasty is controlled by_____________? Gibberellins Abscisins Cytokinins Auxins 32 / 50 _____________ supported theory of special creation? Linnaeus Mendel Lamarck Aristotle 33 / 50 The one which causes contraction of wall of the uterus during and after birth? Progesterone MSH Oxytocin ADH 34 / 50 The pressure generated when water enters & inflates plant cells is called ___________ potential? Solute Water Pressure Osmotic 35 / 50 Initial pH of food vacuole during digestion in amoeba is____________? 7.3 5.3 7.6 5.6 36 / 50 Protonephridia are present in____________? Flateworm Tape worms Round worms Segmented worms 37 / 50 Excretory system of platyhlminthes consists of___________? Flame cells Malpighian tubules Nephridia Nephrons 38 / 50 Secretions are products formed within cell on__________? Golgi bodies E.R Nucleus Ribosome 39 / 50 How many vertebrae are present in coccyx? 7 12 4 9 40 / 50 Rigor mortis i.e, stiffening of body after death results from__________? Death of tissue due to unavailability of O2. Accunulation of rigid proteins molecules in sarcoplam. Unavailability of ATP, which is necessary to break the link between actin and myosin. Decrease in body temperature after death. 41 / 50 How many vertebrae are present in lumbar region? 5 12 4 7 42 / 50 Control of organisms by using living organisms is called_______? Integrated disease management Biological control Bioremediation Antisepsis 43 / 50 Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ? Concentration of enzymes on either side of the cell membrane Concentration of water molecules inside and outside the cell Rate of molecular motion on either side of the cell membrane None of these 44 / 50 The evaporative cooling in the respiratory tract of dogs is called? Panting All of these Vasodilation Vasoconstriction 45 / 50 The number of alveoli in human lungs is estimated to be around:_________? 500 millions 150 millions 1 billion 800 millions 46 / 50 The flow of lymph is maintained by__________? Breathing movements Valves Movement of viscera All of these 47 / 50 Germ theory of disease has________________postulates? 6 3 4 5 48 / 50 Of the following which one is not the characteristic of triploblasts? All of them have blood vascular system They are included in grade bilaterian All of them have digestive system They may be coelomate pseudocoelomate or acoelomate 49 / 50 Among the following organisms which shows the best adaptations for locomotion? Amphibians. Earthworm. Amoeba. Reptiles 50 / 50 Aschelminthes is also known as____________? Protozoans Eumatazoa Protoctist ancestors Nematodes Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp Biology Quiz 2Next
