Biology Test 3 Please don't use any search browser to find the answer. Just do it yourself so you can measure your knowledge power. Best of Luck! Please! Enter Password 1 / 50 Hepatitis A is caused by: Un-enveloped DNA virus Enveloped RNA virus Enveloped DNA virus Un-enveloped RNA virus 2 / 50 The body’s normal metabolic rate is regulated by: Epinephrine Prolactin Thyroid hormones Metaboloxin 3 / 50 De-duve (1949): Golgi apparatus Differentially permeable Lysosomes Nerve cells 4 / 50 If the thyroid gland is removed so………. Death Cause None Our body stop producing the thyroid hormone 5 / 50 Ammonia is the waste product of____ . FISHES All MARINE ANIMALS 6 / 50 Which of the following traits is not sex-linked recessive? Colour blindness Haemophilia tfm syndrome Hypophosphatemic ricket 7 / 50 Phloem cell: Lysosomes Translocation of food Nerve cells Golgi Apparatus 8 / 50 Method of research in which a biological problem is identified, relevant data is gathered, a hypothesis is formulated from these data, and the hypothesis is experimentally tested is called: Scientific theory Scientific law Biological method All choices are correct 9 / 50 Which of the following is not aging? Loss of hair pigment Increase of body weight Increase of number of cells Dryness of skin 10 / 50 Brine is used for industrial production of KCL HCL NHO NaOH 11 / 50 The thick walled enlarged reproductive cells are called: Heterocyst Hormogonia Trichome Akinete 12 / 50 ------have a limited number of organelles? None of the above Eukaryotes organ system Prokaryotes 13 / 50 Super blue green algae is cyanobacteria which: Pollute water has nutritional value None of the above Cause disease in man. 14 / 50 The total amount of energy that is converted to organic compounds in a given area per unit of time is called the: Gross primary productivity Transpiration Net primary productivity Biomass 15 / 50 Albumin is the most important protein in blood serum. It is produced by Lungs Endocrine glands Heart Liver 16 / 50 The chemicals produced by microorganisms, which are capable of destroying or inhibiting the growth of another organism: Both (A) and (B) Vaccines Antibiotics Anti-Toxins 17 / 50 AUTOSOMES ____in male and female Same Differnent None 18 / 50 The chemicals produced by microorganisms, which are capable of destroying or inhibiting the growth of another organism: Anti-Toxins Vaccines Both (A) and (B) Antibiotics 19 / 50 Forming face: Golgi Apparatus Lysosomes Nerve cells Translocation of food 20 / 50 Conduction of impulse: Differentially permeable E.R. Translocation of food Nerve cells 21 / 50 Planning to reduce plant diseases by applying different strategic methods is termed as: Crop rotation Hydroponics Chemical control Integrated disease management 22 / 50 Which one doesn't belong to microtubules? Centrioles Chloroplast Flagella Cilia 23 / 50 The four interconnected rings of steroid molecule have: 12 carbons 16 carbons 15 carbons 17 carbons 24 / 50 Treatment of disease by x-rays or other ionizing radiation is: Radiotherapy All Chemotherapy Gene therapy 25 / 50 The matching, identical but often have slight differences, genes are……. CHROMOSOMES DNA GENES 26 / 50 Homologous structures: Have different structures and function None of the above Have same functions but different structures Have same structures but different functions 27 / 50 What is the mixed gland of the human body? Pituitary Liver Thyroid Pancreas 28 / 50 Which of the biomes has been increased in area by human activities? Savanna Desert Coniferous Grassland 29 / 50 NAD is an example of: Coenzyme Both (B) and (C) Dinucleotide (A)Mononucleotide 30 / 50 plastids are ….. All CHROMOPLAST CHLOROPLAST LEUCOPLAST 31 / 50 Plasma membrane: Golgi apparatus Nerve cells Lysosomes Differentially permeable 32 / 50 During emergencies, the “fight-or-flight” response: is caused by hormone secretions in the adrenal medulla is stimulated by cortisol is the result of aldosterone causing faster blood flow Decrease the heartrate 33 / 50 ATP is an example of: Polynucleotide None of these Mononucleotide Dinucleotide 34 / 50 Non-protein part of the enzyme is……… COFACTOR Apoenzyme None Holoenzyme 35 / 50 Pachytene is a Fourth stage of prophase in meiosis Third stage of prophase in meiosis First stage of prophase in meiosis Second stage of prophase in meiosis 36 / 50 What is the role of progesterone hormone in women? Female secondary sex characteristics Follicle development Spermatogenesis Development of the uterine lining 37 / 50 Identical chromosomes in males is: 56 23 22 26 38 / 50 Sperms are produced in …….. Liver Abdomen None Seminiferous tubules 39 / 50 In which phase does the growth of bacteria take place? Lag phase Death phase Log phase Stationary phase 40 / 50 Chemotherapy: a condition in which liver cells lack receptor for removing cholesterol Kills the cancer cells is also done in cancer patients High level of blood cholesterol 41 / 50 Super blue green algae is cyanobacteria which: Pollute water has nutritional value Cause disease in man. None of the above 42 / 50 The largest desert in the world is: Sahara Thal Thar Gobi 43 / 50 The process of making a polypeptide sequence from the genetic code of mRNA molecule associated with a ribosome is termed as: Translation Transcription Transformation Transduction 44 / 50 How many bones are present in human ears? 6 8 9 3 45 / 50 The reasoning from a specific set of observations to reach a general conclusion is called: None of the above Deductive reasoning Both (A) and (B) Inductive reasoning 46 / 50 Red wood trees measure over: 400 feet in height All choices are incorrect 200 meters in height 300 feet in height 47 / 50 The water bloom is a: Water with bad smell. Polluted water Water cannot be drunk Water with a layer of organisms 48 / 50 Fatal heart attacks in a young Kills the cancer cells High level of blood cholesterol a condition in which liver cells lack receptor for removing cholesterol is also done in cancer patients 49 / 50 Colorado Tick fever is caused by: Double stranded RNA virus Single stranded RNA virus Double stranded DNA virus Single stranded DNA virus 50 / 50 Grassland in tropic climates have woody trees and are called Savanna Prairies Velt Pampas Your score is 0% Restart quiz
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