Question:- Which of the following preventive measures should be taken during the plague? A. Reduce rodent habitat around your home, workplace, and recreational areas. B. Keep fleas off of your pets by applying flea control products. C. Use repellent if you think you could be exposed to rodent fleas during activities such as camping, hiking, or working outdoors. D. All the above
Answer:- Ans. D Explanation: Reduce rodent habitat around your home, workplace, and recreational areas. By using flea control products you can keep fleas off of your pets. If you think that you are exposed to rodent fleas then use repellent during activities like camping, hiking, etc. Do not allow dogs or cats that roam free in endemic areas to sleep on your bed, etc.
Question:- Which of the following is a large blood vessel that carries blood away from the heart? A. Vein B. Artery C. Capillary D. Nerve
Answer:- Ans. B Explanation: The pulmonary artery carries blood from the right side of the heart to the lungs to pick up a fresh supply of oxygen.
Question:- Which of the following is not a member of the vitamin B complex? A. Thiamine B. Riboflavin C. Folic acid D. Ascorbic acid
Answer:- Ans. D Explanation: Vitamin B complex consists of 8 vitamins namely B1, B2, B3, B5, B6, B7, B9 and B12. Vitamin B1 is Thiamine, Vit B2 is Riboflavin, Vit B3 is Niacin, Vit B5 is pantothenic acid, Vit B6 is pyridoxine, biotin, folic acid, and Vit B12 is cyanocobalamin.
Question:- Fungi are plants that lack........ A. Oxygen B. Carbon dioxide C. Chlorophyll D. None of these
Answer:- Ans. C Explanation: We know plants prepare their own food and so are known as autotrophs. With the help of photosynthesis, they make food in which they produce glucose from carbon dioxide and sunlight. Oxygen is released by plants which are further used by humans and other animals. But Fungi lack chlorophyll and do not engage in photosynthesis.
Question:- Which blood vessels have the smallest diameter? A. Capillaries B. Arterioles C. Venules D. Lymphatic
Answer:- Ans. A Explanation: Blood is carried through the body by Blood Vessels. With the help of perfusion process capillaries supply blood to the tissues. The diameter of the capillary ranges from 5-10 micrometers. The diameter of the arteriole is approx. 30 micrometer.
Question:- Which of the following is an air-borne disease? A. Measles B. Typhoid C. Pink eye D. None of the above
Answer:- Ans. A Explanation: Airborne diseases are the infections spread by airborne transmissions including Chickenpox, Anthrax, Influenza, Measles, Smallpox, Cryptococcosis and Tuberculosis.
Question:- A yellow dust appears on the fingers, whenever we touch the middle of a flower. These tiny yellow grains are one of the most precious substances in nature because they contain the secret of plant life. What is this dust called? A. Pollen B. Sperm C. Spore D. Sporocyst
Answer:- Ans. A Explanation: The yellow powder is called pollen and the stick that holds it is known as stamen.
Question:- Which organ of the body produces the fluid known as bile? A. Liver B. Pancreas C. Gall bladder D. Kidney
Answer:- Ans. A Explanation: Liver produces a digestive fluid known as bile. Liver releases Bile into Gall Bladder, a small, pear-shaped organ located just below your liver in the upper right side of your abdomen.
Question:- Which of the following hormones is a steroid? A. Estrogen B. Glucagon C. Insulin D. Oxytocin
Answer:- Ans. A Explanation: Steroid hormone is produced by three endocrine organs. The testes produce testosterone; the ovaries produce estrogen, and the adrenal cortex produces steroid hormones such as cortisol and aldosterone. Steroid hormones are derived from cholesterol and are lipid-soluble molecules.
Question:- Which of the following is/are the main functions of Lymphocytes? 1. Produce antibodies 2. Produce antigens 3. Produce White Blood Cells A. Only 1 B. Both 2 and 3 C. Both 1 and 3 D. 1, 2 and 3
Answer:- Ans. A Explanation: Globulins are secreted by Lymphocytes and are known as antibodies. These antibodies help to fight against pathogens that attack the body.
Question:- Consider the following statements: 1. Insulin is a fat-storage hormone that is released by the pancreas and regulates metabolic processes. 2. Melatonin is produced by the pineal gland in the brain which controls sleep and wake cycles. Choose the correct answer A. Only 1 B. Only 2 C. Both 1 and 2 D. Neither 1 nor 2
Answer:- Ans. C Explanation: Insulin is a fat-storage hormone that is released by the pancreas and regulates metabolic processes. Melatonin is produced by the pineal gland in the brain which controls sleep and wake cycles.