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