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301.

The functional connection between two neurons is a

Answer»

 Synapse



Synapse, also called neuronal JUNCTION, the site of transmission of electric nerve impulses between two nerve CELLS (NEURONS) or between a neuron and a gland or muscle cell (effector). A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

302.

The renal corpuscle is made up of

Answer»

 Both A & B



The renal CORPUSCLE is MADE up of Bowman's capsule and GLOMERULUS.

303.

'Pond silk' is the common name of

Answer»

 Spirogyra



Spirogyra is free-floating green algae present in freshwater HABITATS such as ponds, lakes, ETC. Spirogyra is COMMONLY known as WATER silk or POND silk.

304.

Centre of reflex action

Answer»

 Spinal cord



Central nervous SYSTEM (SPECIFICALLY cerebellum) is the control centre of a REFLEX action. The IMPULSE for reflex action travels to and from spinal cord.

305.

The ability to fix atmospheric nitrogen is found in the

Answer»

 Some blue-green algae



The ABILITY to FIX ATMOSPHERIC NITROGEN is found in the blue-green algae.

306.

In ________ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.

Answer»

 Bacteria



In bacteria cells the GENETIC material is without any nuclear MEMBRANE COVERING and is directly submerged in the CYTOPLASM.

307.

Which of the following organelles of a cell is involved in photosynthesis?

Answer»

 Chloroplast



In plants, PHOTOSYNTHESIS takes place in chloroplasts, which CONTAIN the chlorophyll. Chloroplasts are surrounded by a DOUBLE membrane and contain a third INNER membrane, called the thylakoid membrane, that FORMS long folds within the organelle.

308.

Salts and sugars works to preserve foods by creating a

Answer»

 Hypertonic environment



Salts and sugars work to PRESERVE FOODS by CREATING a hypertonic environment.

309.

Which of the following vitamins are water soluble?

Answer»

 Vitamin B & Vitamin C



The water-soluble vitamins INCLUDE ASCORBIC acid (vitamin C), thiamin, riboflavin, niacin, vitamin B6 (pyridoxine, pyridoxal, and PYRIDOXAMINE), FOLACIN, vitamin B12, biotin, and pantothenic acid.

310.

Goitre is due to the deficiency of

Answer»

 Iodine



The most COMMON cause of GOITERS WORLDWIDE is a LACK of iodine in the diet. In the United States, where the use of iodized salt is common, a goiter is more often due to the over- or underproduction of THYROID hormones or to nodules in the gland itself.

311.

The functional unit of the nervous system is the

Answer»

 Neurons



Neurons, or nerve cell, are the MAIN structural and functional units of the nervous system. EVERY NEURON consists of a body (soma) and a number of PROCESSES (neurites).

312.

Volvox colonies are found in

Answer»

 Freshwater ponds



Volvox can be found in ponds, puddles, and bodies of still FRESH water throughout the world. As AUTOTROPHS, they contribute to the production of oxygen and SERVE as food for a NUMBER of aquatic organisms, especially the microscopic invertebrates called ROTIFERS.

313.

Which part of brain controls fine movement, maintains balance and equilibrium of the body and muscle tone in a human being ?

Answer»

 Cerebellum



The cerebellum (back of brain) is LOCATED at the back of the HEAD. Its function is to COORDINATE voluntary muscle movements and to MAINTAIN POSTURE, balance, and equilibrium.

314.

Which process requires no energy from the cell?

Answer»

 Both A & B



Passive transport REQUIRES no energy from the CELL. Examples INCLUDE the diffusion of oxygen and CARBON dioxide, osmosis of water, and facilitated diffusion.

315.

Movement of cell against concentration gradient is called

Answer»

 Active TRANSPORT



During active transport, SUBSTANCES move against the concentration GRADIENT, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of ENERGY (usually in the form of ATP). It is the opposite of passive transport.

316.

Which of the following bone is not found in human leg?

Answer»

 Humerus



The humerus is the LONG bone in the upper arm. It is located between the elbow joint and the shoulder. So, the CORRECT OPTION is C.

317.

Surgical procedure in which a small portion of sperm duct is removed and cut end ligated in male is called

Answer»

 Vasectomy



Surgical PROCEDURE in which a small portion of sperm DUCT is removed and cut end LIGATED in male is CALLED vasectomy.

318.

In how many parts is the human brain divided?

Answer»

 3



All the PARTS of the BRAIN WORK together, but each part has its own SPECIAL PROPERTIES. The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain.

319.

The number pyrenoids in Chlamydomonas is

Answer»

 1



The NUMBER PYRENOIDS in CHLAMYDOMONAS is 1.

320.

Rh factor is related with

Answer»

 MONKEY



Rh FACTOR is RELATED with monkey.

321.

Biological complete proteins are found in

Answer»

 Meat, Milk, Egg



Complete proteins contain the eight ESSENTIAL amino acids that are needed and can be found in foods such as FISH, dairy PRODUCTS, and EGGS.

322.

Cerebro spinal fluid protects

Answer»

 Brain



Cerebro spinal fluid protects the brain TISSUE from injury when jolted or hit, by PROVIDING a fluid buffer that ACTS as a SHOCK ABSORBER from some forms of mechanical injury.

323.

Which among the following does not have a cell wall?

Answer»

 Mycoplasma



Mycoplasma are a mollicute genus of bacteria that lack a CELL WALL around their cell MEMBRANES. Mycoplasma species are the SMALLEST bacterial cells yet discovered, can survive without oxygen, and COME in various shapes.

324.

Name the blood cells in which nucleus is absent.

Answer»

 BLOOD PLATELETS



Blood Platelets doesn't have a NUCLEUS.

325.

They are used in the retting of flax and hemp.

Answer»

 Bacteria



Bacteria are USED in the RETTING of FLAX and HEMP.

326.

In N2 - fixation process, nitrite is converted to nitrate by

Answer»

 Nitrobacter



In N2 - FIXATION process, nitrite is converted to NITRATE by nitrobacter.

327.

The nitrogen fixing bacteria present in the root nodules of leguminous plant is

Answer»

 Rhizobium



Rhizobium is a genus of bacteria associated with the FORMATION of root nodules on PLANTS. These bacteria live in SYMBIOSIS with legumes. They take in nitrogen from the atmosphere and pass it on to the plant, allowing it to grow in soil low in nitrogen.

328.

What is the first thing that alcohol effects?

Answer»

 Judgement



Alcohol is absorbed into the lining of the STOMACH and then PASSES directly into the bloodstream and reaches your brain WITHIN minutes after consumption. A person's judgment is the FIRST thing affected after DRINKING an alcoholic beverage.

329.

Vitamin present in guava fruit is

Answer»

 Vitamin - C



Guava has a RICH source of vitamin C, A and E. Guava is called the super fruit because it is SAID to contain four times more vitamin C than orange and THREE times more PROTEINS and four times more fibre than pineapple. It is also said to have more potassium than a banana.

330.

Lathyrism is caused by excess consumption of ________

Answer»

 KHESARI Dal



Lathyrism is a disease caused by eating seeds of species of LATHYRUS (the grass PEA), MAINLY L. sativus (the chickpea or khesari).

331.

Amoeba proteus was discovered by

Answer»

 JOHANN R¶sel von Rosenhof



The EARLIEST RECORD of an amoeboid organism was PRODUCED in 1755 by August Johann Rösel von Rosenhof, who named his discovery "Der Kleine Proteus" ("the Little Proteus").

332.

Largest part of human brain is

Answer»

 CEREBRUM



The largest PART of the BRAIN, the cerebrum has two HEMISPHERES (or halves).

333.

Organisms which synthesise their own food are called

Answer»

 Autotrophs



An autotroph is an ORGANISM that can PRODUCE its own FOOD using light, water, carbon DIOXIDE, or other chemicals. Because autotrophs produce their own food, they are SOMETIMES called producers.

334.

Green mould is common name for

Answer»

 PENICILLIUM



Green MOULD is COMMON NAME for Penicillium digitatum.

335.

All of the following are true of neurons except that

Answer»

 They are a very specialized FORM of connective TISSUE



All of the FOLLOWING are TRUE of NEURONS except that they are a very specialized form of connective tissue.

336.

When a Cuttlefish is described as a Molluscs, it is at which level of classification?

Answer»

 Phylum



Cuttlefish is at MOLLUSC LEVEL of CLASSIFICATION.

337.

The number of chloroplasts in a cell of Spirogyra is

Answer»

 1-14



The NUMBER of CHLOROPLASTS in a CELL of SPIROGYRA is 1-14.

338.

Gestation period in human

Answer»

 9 MONTH



Gestation PERIOD in HUMAN is 9 month.

339.

Which one of the following is not reserve food of fungi?

Answer»

 STARCH



Reserve FOOD material in all the fungi is glycogen and OIL but not starch.

340.

Which disease killed more peoples than any other death causing factors including all other diseases, natural calamities and wars?

Answer»

 Malaria



Malaria killed more PEOPLES than any other DEATH causing FACTORS including all other DISEASES, natural calamities and wars.

341.

Which organelle performs cellular respiration?

Answer»

 MITOCHONDRIA

342.

Cerebrum is related to

Answer»

 Brain



The cerebrum is the largest PART of the brain. It is responsible for MEMORY, speech, the senses, and emotional response. It is divided into FOUR SECTIONS called lobes: the frontal, temporal, parietal, and occipital.

343.

Which part of the brain is responsible for consciousness?

Answer»

 Cerebrum



The cerebrum is the largest brain structure and PART of the forebrain (or prosencephalon). Its prominent OUTER portion, the cerebral cortex, not only processes SENSORY and motor INFORMATION but enables consciousness, our ability to CONSIDER ourselves and the outside world.

344.

Potato blight is caused by

Answer»

 MENINGITIS



Potato BLIGHT is CAUSED by meningitis.

345.

Late blight of potato is caused by

Answer»

 Phytophthora infestans



Late blight is caused by the oomycete Phytophthora infestans. Oomycetes are fungus-like ORGANISMS ALSO called WATER molds, but they are not true FUNGI.

346.

Synapse gap is present between which of the following?

Answer»

 Two neurons



An electrical SYNAPSE is a mechanical and electrically conductive LINK between two NEIGHBORING neurons that is formed at a narrow gap between the pre- and postsynaptic neurons known as a gap JUNCTION.

347.

Where does digestion of protein begins?

Answer»

 Stomach



Mechanical digestion of PROTEIN BEGINS in the MOUTH and continues in the stomach and small INTESTINE. Chemical digestion of protein begins in the stomach and ends in the small intestine. The body recycles amino acids to MAKE more proteins.

348.

Marsupial Kangaroo is

Answer»

 Viviparous



The kangaroo is a marsupial from the family Macropodidae. In COMMON use the term is USED to describe the largest species from this family, the red kangaroo, as well as the antilopine kangaroo, EASTERN grey kangaroo, and WESTERN grey kangaroo.

349.

Hemoglobin, the oxygen carrying substance in red blood cells, is a

Answer»

 Proteins



Hemoglobin (HGB) is an important PROTEIN in the red blood cells that carries oxygen from the lungs to all parts of our body. The main job of white blood cells, or leukocytes, is to fight INFECTION.

350.

Vitamins are

Answer»

 MICRO NUTRIENTS



Vitamins are micro nutrients.