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