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101.

Plants synthesis protein from

Answer»

 amino acids



We KNOW that, proteins are polymers of amino acids. So, plants are ALSO USED to synthesise protein from amino acids. Hence, plants SYNTHESIS protein from amino acids in the presence of ATP by SPECIFIC synthetases.

102.

Spiders belong to the phylum

Answer»

 Arthropoda



Arthropod, (PHYLUM Arthropoda), any member of the phylum Arthropoda, the LARGEST phylum in the animal KINGDOM, which includes such familiar forms as LOBSTERS, crabs, spiders, mites, INSECTS, centipedes, and millipedes.

103.

Which of the following blood cells carry oxygen?

Answer»

 R.B.Cs



The main job of red blood CELLS, or erythrocytes, is to CARRY oxygen from the LUNGS to the body tissues and carbon dioxide as a waste PRODUCT, AWAY from the tissues and back to the lungs. Hemoglobin (Hgb) is an important protein in the red blood cells that carries oxygen from the lungs to all parts of our body.

104.

Tracheids are conducting cells of which tissue?

Answer»

 XYLEM



Tracheids (TOP) and vessel elements (bottom) are the WATER conducting cells of xylem tissue.

105.

Fusion of two gametes is called

Answer»

 FERTILIZATION



Fusion of TWO GAMETES is CALLED fertilization.

106.

Which feature do prokaryotic and eukaryotic cells share?

Answer»

 DNA



The common features of prokaryotic and EUKARYOTIC CELLS are: DNA, the genetic MATERIAL contained in one or more chromosomes and LOCATED in a non membrane bound nucleoid region in prokaryotes and a membrane-bound nucleus in eukaryotes.

107.

Photosynthesis generally takes place in which parts of the plant?

Answer»

 Leaf and other CHLOROPLAST bearing parts



In PLANTS, the process of PHOTOSYNTHESIS takes PLACE in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll.

108.

Which one of the following processes takes place in lakes during eutrophication?

Answer»

 Excessive ENTRY of nutrient into water



In lakes, when there's a EXCESS entry of nutrients in water, the GROWTH of PLANT life takes PLACE. This phenomenon is called Eutrophication. Thus, the correct answer is (d).

109.

The pollen grains of Pinus are carried to its female cone through the

Answer»

 Wind



The POLLEN GRAINS of Pinus are carried to its FEMALE CONE through the wind.

110.

Who is called the Father of Taxonomy?

Answer»

 CAROLUS LINNAEUS



Carolus Linnaeus is CALLED the FATHER of TAXONOMY.

111.

In 1610, who made microscope and used it to observe very small animals?

Answer»

 Galileo



Galileo made MICROSCOPE and used it to observe very SMALL ANIMALS.

112.

Ramapithecus and Cro-Magnon man are considered

Answer»

 ANCESTORS of MODERN MAN



Ramapithecus and Cro-Magnon man are CONSIDERED ancestors of modern man.

113.

Any foreign object that gains entry into the cell is immediately engulfed by the ________ and is completely broken into simple digestible pieces.

Answer»

 LYSOSOMES



Any FOREIGN object that gains ENTRY into the cell is immediately ENGULFED by the lysosomes and is COMPLETELY broken into simple digestible pieces.

114.

Which of the following micro-organism causes diseases like polio and chicken pox?

Answer»

 Virus



Serious DISEASES LIKE polio and CHICKEN pox are CAUSED by viruses.

115.

Longest bone found in which part of human body?

Answer»

 Thigh



The FEMUR is one of the most researched bones in the HUMAN anatomy and forensic medicine. As the longest bone in the human BODY, it is well PRESERVED in skeletal remains.

116.

Amoeba is ________ in nutrition

Answer»

 Holozoic



Amoeba TAKES its nutrition through a process called phagocytosis where the ENTIRE organism swallows the FOOD it plans on eating up. The mode through which an amoeba ENGULFS nutrition is known as holozoic nutrition.

117.

What kingdom does Amoeba belong to

Answer»

 PROTISTA



Amoeba BELONGS to KINGDOM protista.

118.

Alimentary canal runs from mouth to

Answer»

 Anus



The digestive system is made up of the ALIMENTARY canal (also CALLED the digestive tract) and other organs, such as the LIVER and pancreas. Alimentary canal RUNS from mouth to anus.

119.

Pigmentation of skin is due to

Answer»

 melanocytes



A common cause of hyperpigmentation is an excess production of melanin. Melanin is a PIGMENT that gives skin its COLOR. It's produced by skin CELLS called melanocytes.

120.

The schwann cell forms a myelin sheath around the

Answer»

 Axon



Myelin is formed by Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the CENTRAL nervous system (CNS). Each Schwann cell forms a single myelin SHEATH around an axon.

121.

Important component that helps in clotting of the blood is called ________ .

Answer»

 Platelets



The MAIN job of platelets, or thrombocytes, is blood clotting. Platelets are much SMALLER in size than the other blood cells. They GROUP TOGETHER to form clumps, or a PLUG, in the hole of a vessel to stop bleeding.

122.

Number of bones found in skull is

Answer»

 8



Number of BONES FOUND in SKULL is 8.

123.

What do eukaryotic cells have that prokaryotic cells do not?

Answer»

 Nucleus



The PRIMARY DISTINCTION between these two types of ORGANISMS is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where EUKARYOTES store their genetic information.

124.

Instrument used to measure blood pressure is

Answer»

 SPHYGMOMANOMETER



You can MEASURE your BLOOD PRESSURE on your own using a digital blood pressure MONITOR for automated readings or an instrument called a sphygmomanometer for manual readings.

125.

In which organelle does cellular respiration occur?

Answer»

 MITOCHONDRIA



The enzymatic REACTIONS of cellular RESPIRATION BEGIN in the cytoplasm, but most of the reactions occur in the mitochondria. Cellular respiration occurs in the double-membrane organelle called the mitochondrion. The folds in the inner membrane are called CRISTAE.

126.

Lysosome is formed from which of the following cell organelles?

Answer»

 Golgi bodies



Lysosomes originate by BUDDING off from the membrane of the trans-Golgi NETWORK, a region of the Golgi complex RESPONSIBLE for sorting NEWLY synthesized PROTEINS, which may be designated for use in lysosomes, endosomes, or the plasma membrane.

127.

Azolla is a

Answer»

 Aqueous FERN



Azolla (mosquito fern, duckweed fern, fairy moss, water fern) is a genus of seven species of aquatic ferns in the FAMILY Salviniaceae. They are extremely reduced in FORM and specialized, looking nothing like other TYPICAL ferns but more resembling duckweed or some MOSSES.

128.

Damage to hearing is caused by sounds which exceed

Answer»

 120 decibles



Noise is a level of SOUND beyond the capacity of ears. Normal level of sound for conversation is 60 decibels and lawn mower is 90 decibels that can not harm the ears but very high levels of noise (at or above 120 decibels) exposure can leads to hearing loss. Noise-induced hearing loss is irreversible, the main form of treatment is prevention.

129.

Which statement about capillaries is correct?

Answer»

 Their walls are only ONE cell thick



Capillaries are tiny blood vessels connecting arteries to VEINS. These blood vessels carry oxygen and NUTRIENTS to individual cells. Capillaries are the smallest blood vessels in the BODY, and have walls only one or two cells thick.

130.

Which one among the following cell organelles is semi-permeable ?

Answer»

 Nucleus



Among the GIVEN EXAMPLE only nucleus is a CELL organelle and REST are not cell organelle therefore nucleus is the correct ANSWER.

131.

It is a process which converts a single-celled zygote into a great number of cells, which then differentiate into tissues.

Answer»

 Mitosis



Mitosis is a process which CONVERTS a single-celled zygote into a great number of CELLS, which then DIFFERENTIATE into tissues.

132.

Antibodies is produced in the plasma of blood by

Answer»

 LYMPHOCYTES



Antibodies is PRODUCED in the PLASMA of BLOOD by lymphocytes.

133.

Ornithology is the study of

Answer»

 BIRDS



Ornithology, a BRANCH of ZOOLOGY DEALING with the STUDY of birds.

134.

Ptyalin is an enzyme produced in the

Answer»

 SALIVARY glands



Ptyalin is PRODUCED by the salivary glands, WHEREAS PANCREATIC amylase is secreted by the PANCREAS into the small intestine.

135.

Which statement is one component of the cell theory?

Answer»

 All living cells ARISE from pre-existing cells



The three PARTS of the cell theory are as FOLLOWS:
(1) All living THINGS are made up of cells,
(2) Cells are the smallest units (or most basic building BLOCKS) of life, and
(3) All cells come from pre-existing cells through the process of cell division.

136.

Potato is a modified form (outgrowth) of:

Answer»

 STEM



Potato is a MODIFIED FORM (OUTGROWTH) of stem.

137.

Bones join with muscles with the help of

Answer»

 TENDON



Bones JOIN with MUSCLES with the HELP of tendon.

138.

The tallest moss in the world is

Answer»

 Dawsonia



The TALLEST MOSS in the WORLD is Dawsonia.

139.

Carica papaya is the scientific name of ________ .

Answer»

 PAPAYA



Carica papaya is the SCIENTIFIC NAME of papaya.

140.

Most of the digestion occur in which part of alimentary canal of man

Answer»

 Small intestine



Most of the digestion of food takes place in the small intestine which is the longest PART of the GI TRACT. A MAJOR digestive organ is the stomach. WITHIN its mucosa are millions of embedded GASTRIC glands.

141.

Nitrogenous Food is

Answer»

 Proteins



Proteins are nitrogenous foods. Nitrogenous foods as it is CLEAR from the name are those foods which are high in the quantity of nitrogen they POSSESS. Foods with nitrogen are the main ingredients when anyone TALKS about GOOD health.

142.

Which plant cells give support to plant body?

Answer»

 Sclerenchymatous CELLS



Sclerenchyma cells also provide support to the plant, but UNLIKE COLLENCHYMA cells, many of them are DEAD at MATURITY.

143.

Prokaryotic cells lack

Answer»

 All of these



Prokaryotic CELLS lack nucleolus, nuclear MEMBRANE and membrane BOUND by ORGANELLES.

144.

The main protein found in milk is ________

Answer»

 Casein



Casein and WHEY PROTEIN are the MAJOR PROTEINS of MILK.

145.

Mitosis cannot take place bacteria because they lack ________

Answer»

 NUCLEUS



There are MANY DIFFERENCES between prokaryotic and eukaryotic cell division. Bacteria have a SINGLE, circular DNA CHROMOSOME and no nucleus. Therefore, mitosis is not necessary in bacterial cell division.

146.

Healing of wounds is dependent upon the ________ division of underlying cells.

Answer»

 MITOTIC



Healing of wounds is dependent UPON the mitotic division of UNDERLYING CELLS.

147.

Which one is not found in the composition of plasma membrane?

Answer»

 Minerals



Minerals is not FOUND in the COMPOSITION of PLASMA MEMBRANE.

148.

Which organelles are unique to plant cells?

Answer»

 All of the above



Plant cells have certain DISTINGUISHING features, including CHLOROPLASTS, cell walls, and intracellular vacuoles. Photosynthesis TAKES place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle WATER and storage of other molecules.

149.

The prokaryotic cell lacks

Answer»

 NUCLEAR envelope and PLASTIDS



The prokaryotic CELL LACKS nuclear envelope and plastids.

150.

Red blood corpuscles is also known as

Answer»

 Erythrocytes



Red BLOOD cell, also called erythrocyte, cellular component of blood, millions of which in the CIRCULATION of vertebrates give the blood its characteristic colour and CARRY OXYGEN from the lungs to the tissues.