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