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