Nepenthes also known as tropical pitcher plants or monkey cups, is a genus of carnivorous plants in the monotypic family Nepenthaceae.
Nepenthes species usually consist of a shallow root system and a prostrate or climbing stem, often several metres long and up to 15 m (49 ft) or more, and usually 1 cm (0.4 in) or less in diameter, although this may be thicker in a few species
Q1292. The method not used as a Biological control is:
Biological control is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role.
Pesticides are used to control various pests and disease carriers, such as mosquitoes, ticks, rats and mice. Pesticides are used in agriculture to control weeds, insect infestation and diseases. There are many different types of pesticides; each is meant to be effective against specific pests.
Tusks are elongated, continuously growing front teeth, usually but not always in pairs, that protrude well beyond the mouth of certain mammal species. They are most commonly canines, as with warthogs, pig, and walruses, or, in the case of elephants, elongated incisors. Upper incisor lusk of elephant is an enormously enlarged.
Scurvy is a disease caused by a diet that lacks vitamin C (ascorbic acid). Patients develop anemia, debility, exhaustion, edema (swelling) in some parts of the body, and sometimes ulceration of the gums and loss of teeth. The name scurvy comes from the Latin scorbutus.
Male anopheles mosquitoes live just about one week in the wild as well as in laboratory conditions. Unlike females, males do not feed on mammalian blood. They use their proboscis or feeding tube to drink nectar from flowers.
Q1297. Growth of the baby in the uterus is found using
Ultrasound is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is no different from ‘normal’ (audible) sound in its physical properties, except in that humans cannot hear it. This limit varies from person to person and is approximately 20 kilohertz (20,000 hertz) in healthy, young adults. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.
Q1298. Besides ear ossicles, the cavity of the middle ear in humans contains
Plasma, which constitutes 55% of blood fluid, is mostly water (92% by volume), and contains dissipated proteins, glucose, mineral ions, hormones, carbon dioxide (plasma being the main medium for excretory product transportation), and blood cells themselves.
Sodium and potassium ions are pumped in opposite directions across the membrane building up a chemical and electrical gradient for each. In nerve cells the pump is used to generate gradients of both sodium and potassium ions. These gradients are used to propagate electrical signals that travel along nerves.
Q1301. The element which is rich in most leafy vegetables is
Polio is caused by the poliovirus, a highly contagious virus specific to humans. The virus usually enters the environment in the feces of someone who is infected. In areas with poor sanitation, the virus easily spreads from feces into the water supply, or, by touch, into food.
It replaces the heart’s defective natural pacemaker functions. The sinoatrial (SA) node or sinus node is the heart’s natural pacemaker. It’s a small mass of specialized cells in the top of the right atrium (upper chamber of the heart). It produces the electrical impulses that cause your heart to beat.
A landfill site (also known as a tip, dump, rubbish dump, garbage dump or dumping ground) is a site for the disposal of waste materials by burial and is the oldest form of waste treatment (although the burial part is modern; historically, refuse was just left in piles or thrown into pits). Historically, landfills have been the most common method of organized waste disposal and remain so in many places around the world.
The anatomical part of the scorpion that delivers the sting is called a “telson”. Most scorpion stings vary from small swelling to medically significant lesions in severity, with only a few able to cause severe allergic, neurotic or necrotic reactions. Antivenom exists for both species’ stings.
The human skeleton is the internal framework of the body. It is composed of around 300 bones at birth this total decreases to 206 bones by adulthood after some bones have fused together. The bone mass in the skeleton reaches maximum density around age 20.
Q1307. The number of heart beats on an average in an adult human is in the range of
A normal resting heart rate for adults ranges from 71-80 beats a minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats a minute.
Q1308. The end product of the digestion of starch in the alimentary canal is
Alimentary canal, also called digestive tract, pathway by which food enters the body and solid wastes are expelled. The alimentary canalincludes the mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus.
Maltase, another brush border enzyme, breaks down maltose into glucose. The pancreas secretes many enzymes into the small intestine that all work in concert to break down the starch molecules. Other pancreatic enzymes include sucrase and lactase, which break down sucrose and lactose, two disaccharides.
They do not have eyes but they have light and touch sensitive organs (receptor cells). These cells help them sense differences in light intensity and to feel vibrations in the ground. Earthworms breathe through their skin.
A system of complementary medicine in which fine needles are inserted in the skin at specific points along what are considered to be lines of energy (meridians), used in the treatment of various physical and mental conditions.
Q1311. Some viruses have RNA but no DNA. This would indicate that-
(a) these viruses cannot replicate
(b) these viruses have no heritable information
(c) RNA transmits the hereditary information in these viruses
The answer is water plants. The channels of air-filled cavities provide a low-resistance internal pathway for the exchange of gases such as oxygen and ethylene between the plant above the water and the submerged tissues.
Schematic representation of the flow of nitrogen through the land environment. The importance of bacteria in the cycle is immediately recognized as being a key element in the cycle, providing different forms of nitrogen compounds assimilable by higher organisms.
Q1315. Which of the following is not a part of the Darwin’s theory of evolution?
Lamarck is best known for his Theory of Inheritance of Acquired Characteristics, first presented in 1801 (Darwin’s first book dealing with natural selection was published in 1859). If an organism changes during life in order to adapt to its environment, those changes are passed on to its offspring nation.
The base of operations for the brains of a computer is the motherboard. The computer brain is a microprocessor called the central processing unit (CPU). The CPU is a chip containing millions of tiny transistors.
Cod liver oil, as the name suggests, is the essential oil extracted from the livers of Atlantic cod. The oil is commonly taken as a dietary supplement. It is one of the best sources of omega 3 fatty acids (EPA and DHA) and contains relatively high amounts of vitamin A.
Q1318. Which of the following does not provide any energy?
They’re responsible for purifying your blood by removing waste and excess fluid from your body. When the kidneys don’t work properly, dialysis is used to perform the function of the kidneys. Dialysis is a treatment that filters and purifies the blood using a machine.
Pesticides (chemicals used for killing pests, such as rodents, insects, or plants) Pesticides are a class of chemicals designed to kill pests (rodents, insects, or plants) that may affect agricultural crops or carry diseases like malaria and typhus.
Q1321. What is the common in AIDS, mumps and poliomyelitis?
(a) Young children get affected most readily
(b) No effective vaccine has yet been developed for them
(c) These are caused by viruses
(d) Their germs can be transmit- ted through blood transfusions
Alll 3 are caused by viruses. Human immunodeficiency virus infection and acquired immune deficiency syndrome (HIV/AIDS) is a spectrum of conditions caused by infection with human immunodeficiency virus (HIV).
Mumps, also known as epidemic parotitis, is a viral disease caused by the mumps virus.
Polio, or poliomyelitis, is a crippling and potentially deadly infectious disease. It is caused by the poliovirus. The virus spreads from person to person and can invade an infected person’s brain and spinal cord, causing paralysis (can’t move parts of the body).
Pancreatic juice contains trypsinogen, which is the inactive form of the enzyme trypsin. The wall of the intestine produces enterokinase (another enzyme) which converts trypsinogen to trypsin. Trypsin is a endopeptidase which, like pepsin, proteins and long polypeptide chains into short polypeptide chains.
Anemia is defined as a decrease in the amount of red blood cells (RBCs) or hemoglobin in the blood. When anemia comes on slowly, the symptoms are often vague and may include feeling tired, weakness, shortness of breath or poor ability to exercise. Iron-deficiency anemia.
Q1324. Protein which renders a cell less susceptible to attack by viruses is called—
Haemophilia, also spelled hemophilia, is a mostly inherited genetic disorder that impairs the body’s ability to make blood clots, a process needed to stop bleeding.This results in people bleeding longer after an injury, easy bruising, and an increased risk of bleeding inside joints or the brain. In the 1800s haemophilia was common within the royal families of Europe.
Q1326. Approximately how many times each day, do our heart valves open and close normally?
As the heart muscle contracts and relaxes, the valves open and shut approximately 1,00,000 times letting blood flow into the ventricles and atria at alternate times. When the left ventricle contracts again, the mitral valve closes and the aortic valve opens, so blood flows into the aorta.
Pigments for Photosynthesis. Photosynthesis in plants is dependent upon capturing light energy in the pigment chlorophyll, and in particular chlorophyll a. This chlorophyll resides mostly in the chloroplasts and gives leaves their green color.
Q1330. Free-living nitrogen fixing microorganisms are
Rhizobia are soil bacteria that fix nitrogen after becoming established inside root nodules of legumes. In order to express genes for nitrogen fixation, rhizobia require a plant host they cannot independently fix nitrogen.