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