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