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