MCQs on Chemical Coordination and Integration 1. _______ controls the concentration of urine 1. ADH 2. Oxytocin 3. ACTH 4. None of the above 2. Children who have damaged thymus may result in_____________ 1. Loss of an antibody-mediated immunity 2. Reduction in stem cell production 3. Deafness 4. Loss of …
MCQs on Breathing and Exchange of Gases 1. Respiration in mature mammalian erythrocytes are __________ 1. Linear 2. Absent 3. Anaerobic 4. Aerobic 2. __________ is not a characteristic feature of the respiratory surface 1. Dry 2. Thin 3. Permeable 4. Moist 3. Human skin cannot function as a respiratory …
MCQs on Organisms and Populations 1. A group of populations of two or more species occupying the same geographical area at the same time is called 1. Ecosystem 2. Commensalism 3. Interaction 4. Community 2. Biotic factors include 1. Plants and animals 2. Water temperature, fish 3. Plants, animals and …
MCQs on Neural Control and Coordination 1. One of the functions of the Neuroglial cells is to protect and support _________ 1. Nephrons 2. Myoid cells 3. Neurons 4. None of the above 2. The abundant inhibitory neurotransmitter found in the CNS is ________ 1. Gamma-glutamyltransferase 2. Gamma-linolenic acid 3. …
MCQs on Plant Growth and Development 1. Coconut milk contains a cytokinin called ____ which promotes plant growth. 1. Naphthalene acetic acid 2. Indole-3-acetic acid 3. Gelatin 4. Zeatin 2. One of the following is not an auxin 1. Indole-3-acetic acid 2. Malic Hydrazide 3. Indole butyric acid 4. Naphthalene …
MCQs on Respiration in Plants 1. Alpha-ketoglutarate dehydrogenase results in a. Oxidation and Decarboxylation b. Reduction c. Oxidation d. None of the above 2. _________ is a product of aerobic respiration a. Malic acid b. Pyruvate c. Ethylene d. Lactose 3. Energy gained during aerobic respiration is _______ times more …
MCQs on Transport in Plants 1. The rate of transpiration will _________ if the atmospheric pressure is low a. Increase b. Decrease c. Stay unchanged d. Can’t be determined 2. The main function of guard cells is to help with ____________ a. Transpiration b. Guttation c. Transcription d. None of …
MCQs On Carbohydrates 1) Which of the following Biomolecules simply refers to as “Staff of life”? (a) Lipids (b) Proteins (c) Vitamins (d) Carbohydrates Sol: (d) Carbohydrates. 2) Which of the following is the simplest form of carbohydrates? (a) Carboxyl groups (b) Aldehyde and Ketone groups (c) Alcohol and Carboxyl …
MCQs on Food Microbiology 1. Which of the following produces citric acid? (a) Aspergillus (b) Pseudomonas (c) Saccharomyces (d) Clostridium Sol: (a) Aspergillus. 2. Which of the following organism is nitrogen-fixing and found in rice fields in symbiotic association with Azolla? (a) Frankia (b) Tolypothrix (c) Spirulina (d) Anabaena Sol: …
MCQs on Virus 1. A virus is made up of _______. (a) Protein coat and nucleic acid (b) Protein coat and mitochondria (c) Nucleic acid and cell membrane (d) Nucleic acid, cell wall and cell membrane Sol: (a) Protein coat and nucleic acid. 2. The protein coat of viruses that …
MCQs on PCR 1. The PCR technique was developed by_________. (a) Kohler (b) Altman (c) Milstein (d) Kary Mullis Sol:(d) Kary Mullis. 2. The polymerase chain reaction is_________. (a) It is a DNA sequencing technique. (b) It is a DNA degradation technique (c) It is a DNA amplification technique (d) …
MCQs on Histology 1. Where are bicollateral vascular bundles found? (a) Malvaceae (b) Gramineae (c) Cucurbitaceae (d) Leguminosae Sol:(c) Cucurbitaceae. 2. Why is grafting not possible in monocotyledons? (a) Because they have scattered vascular bundles (b) Because they lack cambium (c) Because they are herbaceous (d) Because they have parallel …
MCQs on Antibiotics 1. The yield of the antibiotic depends upon __________. (a) Age of the inoculum (b) Only the pH of the medium (c) Composition of the medium (d) All of the above Sol. (d) All of the above. 2. In Penicillium chrysogenum, the maximum antibiotic production occurs during …
MCQs on Carbohydrate Metabolism 1. Which of the following enzymes are not involved in galactose metabolism? (a) Galactokinase (b) Glucokinase (c) Galactose-1-Phosphate Uridyltransferase (d) UDP-Galactose 4- epimerase Sol. (b) Glucokinase. 2. Which of the following enzymes leads to a glycogen storage disease known as Tarui’s disease? (a) Glucokinase (b) Pyruvate …
MCQs on Air Pollution 1.Who was the first scientist to coin the term SMOG and to describe the layers of SMOG? (a) Nikola Tesla (b) Stephen Hawking (c) Dr Henry Antoine (d) Nicolaus Copernicus Sol: (c) Dr Henry Antoine. 2.Which of the following pollutants are responsible for the cause of …
MCQs on Components of Food 1. Which of the following components are major nutrients in our food? (a) Carbohydrates (b) Lipids and Proteins (c) Vitamins and Minerals (d) All of the above Sol: (d) All of the above. 2. Which of the following food components is required for the growth …
MCQs on Immunity 1. Which of the following systems protects our body against disease-causing microbes? (a) Immune system (b) Digestive system (c) Excretory system (d) Respiratory system Sol: (a) Immune system. 2. Which of the following immunity is present from our birth? (a) Innate Immunity (b) Active immunity (c) Passive …
MCQs on Diseases 1. Diseases that spread from one person to another are called _______. (a) Communicable diseases (b) Degenerative diseases (c) Non-communicable diseases (d) None of the above Sol: (a) Communicable diseases. 2. Night blindness is caused due to the deficiencies of_______. (a) vitamin A (b) vitamin B (c) …
MCQs on Nutrition in Plants 1. How many essential nutrients does a plant require? (a) 15 (b) 17 (c) 16 (d) 20 Sol: (b) 17. 2. Which of the following minerals plays a major role in energy storage and transfer of ADP into ATP molecules? (a) Phosphorus (b) Magnesium (c) …
MCQs on Chromosomes 1. The term chromosome was coined by ___________. (a) Sutton (b) Boveri (c) Waldeyer (d) Hoffmeister Sol: (c) Waldeyer. 2. In males, the gene for colour blindness is located in________. (a) X-chromosome (b) Y-chromosome (c) Both X and Y chromosome (d) Either X-chromosome or Y-chromosome Sol: (a) …
MCQs on Cell Organelles 1. Which of the following cell organelles is absent in animal cells and present in a plant cell? (a) Cell wall (b) Cytoplasm (c) Vacuoles (d) Mitochondria Sol: (a) Cell wall. 2. Which of the following cell organelles does not contain DNA? (a) Nucleus (b) Lysosomes …