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