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