Botany, also called plant science(s), plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. Traditionally, botany has also included the study of fungi and algae by mycologists and phycologists respectively, with the study of these three groups of organisms remaining within the sphere of interest of the International Botanical Congress.Botany originated in prehistory as herbalism with the efforts of early humans to identify – and later cultivate – edible, medicinal and poisonous plants, making it one of the oldest branches of science. Medieval physic gardens, often attached to monasteries, contained plants of medical importance.Modern botany is a broad, multidisciplinary subject with inputs from most other areas of science and technology. Research topics include the study of plant structure, growth and differentiation, reproduction, biochemistry and primary metabolism, chemical products, development, diseases, evolutionary relationships, systematics, and plant taxonomy. Botney is scientific study of the physiology, structure, genetics, ecology, distribution, classification, and economic importance of plan. By this definition plants include, algae, fungi, lichens, mosses, ferns, conifers and flowering plants.Just follow the Mcqs online quiz being dispatched over here with respect to your preparation for entry admission test NTS PPSC OTS PTS and missllenous job exams simultaneously.
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Botany Mcqs Online With Answers for NTS PPSC Entry Test Classes
Botany
Botany Mcqs with Answers Solved
From which part of a plant is turmeric obtained?
A. Fruit
B. Stem
C. Flower
D. Root
Right Answer: B. Stem
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Off all micro-organism, the most adaptable and versatile are?
A. Algae
B. Fungi
C. Bacteria
D. Viruses
Right Answer: D. Viruses
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Polyribosomes are aggregates of?
A. Ribosomes and r-RNA
B. Only r-RNA
C. Peroxisomes
D. Several ribosomes held together by string of m-RNA
Right Answer: D. Several ribosomes held together by string of m-RNA
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The vitamin which cannot be had from any vegetable is?
A. Vitamin E
B. Vitamin B
C. Vitamin C
D. Vitamin D
Right Answer: D. Vitamin D
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From which part of Onion plant we get morphine?
A. Bark
B. Leaves
C. Fruit coat
D. Stem
Right Answer: C. Fruit coat
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Growing more than one crop on a piece of land during the year is known as?
A. Double cropping
B. Uni cropping
C. Triple cropping
D. Multiple cropping
Right Answer: D. Multiple cropping
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The plants, which grows under water stress conditions of deserts are?
A. Epiphytes
B. Xerophytes
C. Sciophytes
D. Heliophytes
Right Answer: B. Xerophytes
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Respiration is?
A. Oxidation
B. Amination
C. Reduction
D. Hydrolysis
Right Answer: A. Oxidation
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The movement of water from cell to cell via plasmadesmata is called?
A. Apoplastic
B. Symplastic
C. Transmembrane
D. Faciliated
Right Answer: A. Apoplastic
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In a-helix secondary structure, hydrogen bonds lie between amide group of one amino acid and carbonyl group of?
A. 2nd amino acid
B. 3rd amino acid
C. Fourth amino acid
D. Fifth amino acid
Right Answer: C. Fourth amino acid
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Number of ATP molecules produced by each NADPH is?
A. 3
B. 2
C. 1
D. 5
Right Answer: A. 3
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Largest number of Eucalyptus species is found in?
A. Australia
B. Pakistan
C. Burma
D. New Zealand
Right Answer: A. Australia
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The term of ‘GM food’ refers to the food?
A. That is genetically modified
B. That grows under geographical modification
C. With greater glucose metabolism
D. That grows under genetic measures
Right Answer: A. That is genetically modified
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Production of alcohol from organic compounds by microorganism is known as?
A. Anaerobic respiration
B. Aerobic respiration
C. Combustion
D. Fermentation
Right Answer: D. Fermentation
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The elements which is rich in most leafy vegetable is?
A. Zinc
B. Calcium
C. Iron
D. Phosphorous
Right Answer: C. Iron
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The primary source of carbohydrates are?
A. Crude oil
B. Marine animals
C. Coal-tar
D. Plants
Right Answer: D. Plants
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What is a Sponge?
A. A plant
B. A fungus
C. A fossil
D. An animal
Right Answer: D. An animal
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The plants which grow well, only in light are known as?
A. Sciophilous
B. Xerophytes
C. Heliophytes
D. Epiphytes
Right Answer: C. Heliophytes
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Which of the following is not included in the Technology Mission?
A. Pulses
B. Vegetables
C. Oil seeds
D. Maize
Right Answer: B. Vegetables
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Bryophytes are often called as amphibian plant because they?
A. Do not have habitat preference
B. Can eat insects
C. Are found both in water on land
D. Appear like frog
Right Answer: C. Are found both in water on land
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A plant with fibrous root system is?
A. Mustard
B. Wheat
C. Bean
D. Pea
Right Answer: B. Wheat
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In a food chain, the solar energy utilized by plants is only?
A. 0.01%
B. 0.1%
C. 1%
D. 10%
Right Answer: B. 0.1%
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Which among the following elements increases the absorption of water and calcium in plants?
A. Boron
B. Copper
C. Molybdenum
D. Manganese
Right Answer: A. Boron
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The protein part of enzyme is?
A. Prosthatic group
B. Apoenzyme
C. Holoenzyme
D. Zymogen
Right Answer: B. Apoenzyme
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Which of the following is not included in the Technology Mission?
A. Vegetables
B. Oil seeds
C. Maize
D. Pulses
Right Answer: A. Vegetables
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Bulbils takes part in?
A. Food storage
B. Vegetative reproduction
C. Respiration
D. Sexual reproduction
Right Answer: B. Vegetative reproduction
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Which one of the following is not a plant product?
A. Nicotine
B. Caffeine
C. Saccharin
D. Piperine
Right Answer: C. Saccharin
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Onion is a modified form of?
A. Leaf
B. Stem
C. Root
D. None of these
Right Answer: B. Stem
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Which of the following is a rich source of Vitamin B-12?
A. Milk
B. Watermelon
C. Apple
D. Cashew nut
Right Answer: D. Cashew nut
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Quinine, the commonly used drug to treat malaria, is obtained from a plant. What part of the plant yields the drug?
A. Root
B. Stem bark
C. Leaves
D. Fruits
Right Answer: B. Stem bark
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Which wood will become useless soon after exposing in the open air?
A. Wet wood
B. Soft wood
C. Hard wood
D. Fibrous wood
Right Answer: A. Wet wood
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With the addition of solution to a liquid system, the water potential of the system?
A. Increases
B. Decreases
C. Remains stable
D. Remains variable
Right Answer: B. Decreases
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Which plant is called ‘Herbal Indian Doctor’?
A. Neem
B. Amla
C. Tulsi
D. Rajanigandha
Right Answer: B. Amla
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The age of trees is determined by its?
A. Height
B. Girth
C. General appearance
D. Growth rings
Right Answer: Growth rings
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Which zone of the lake ecosystem consists of phyto and zoo planktons?
A. Littoral zone
B. Limnetic zone
C. Profundal zone
D. None of these
Right Answer: B. Limnetic zone
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In C3 plants first stable product photosynthesis during dark reaction is?
A. PGA
B. Pyruvic acid
C. RuBP
D. Oxalo acetic acid
Right Answer: A. PGA
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Maximum harm to a tree is caused by?
A. Loss of its bark
B. Loss of half of its leaves
C. Loss of half of its branches
D. Loss of all leaves
Right Answer: D. Loss of all leaves
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The conversion of pyruvate into acetyl C0.A is called?
A. Glycolysis
B. Fermentation
C. Oxidative carboxylation
D. B-oxidation
Right Answer: A. Glycolysis
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A sequence of changes in the community structure of an ecosystem over a period of time is called?
A. Natural selection
B. Succession
C. Neo-Darwinism
D. None of these
Right Answer: B. Succession
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Ginger is a stem and not a root because?
A. It lacks chlorophyll
B. It stores food material
C. It has notes and internodes
D. It grows horizontally in the soil
Right Answer: C. It has notes and internodes
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Insectivorous plants grow in soil deficient in?
A. Water
B. Magnesium
C. Nitrogen
D. Calcium
Right Answer: C. Nitrogen
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What is the impact of advancing glaciers on the rings of tree?
A. They become concentric
B. Their shape is distorted
C. They become widely spaced
D. They are immune to this change
Right Answer: B. Their shape is distorted
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NADH from the Kerbs Cycle is approximately equal to?
A. 2 ATP
B. 3 ATP
C. 4 ATP
D. 6 ATP
Right Answer: B. 3 ATP
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Which of the following is not an insectivorous plant?
A. Cuscuta
B. Utricularia
C. Nepenthes
D. Drosera
Right Answer: A. Cuscuta
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The food conducting tissue of a plant is a?
A. Phloem
B. Xylem
C. Collenchyma
D. Parenchyma
Right Answer: A. Phloem
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What causes common cold?
A. Fungi
B. Protozoa
C. Virus
D. Bacteria
Right Answer: C. Virus
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The actual location or place where an an organism lives is called?
A. Habitat
B. Ecosystem
C. Niche
D. Biome
Right Answer: A. Habitat
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Final electron acceptor in respiration is?
A. Hydrogen
B. Oxygen
C. Cytochrome
D. Dehydrogenase
Right Answer: B. Oxygen
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Hashish is obtained from plant. From which part of the plant is it obtained?
A. Leaves
B. Stem
C. Exudate from stem and male inflorescences
D. Exudate from stem and female inflorescences
Right Answer: D. Exudate from stem and female inflorescences
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Bakeries use yeast in bread-making because it?
A. Enhances the food values
B. Makes the bread hard
C. Makes the bread soft and spongy
D. Keeps the bread fresh
Right Answer: C. Makes the bread soft and spongy
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Cereals are a rich source of?
A. Starch
B. Maltose
C. Glucose
D. Fructose
Right Answer: A. Starch
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The term protoplasm was coined by?
A. Robert Hooke
B. Dujardin
C. Robert Brown
D. Purkinje
Right Answer: D. Purkinje
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The most abundant enzyme in the living world is?
A. DNAse
B. Rubisco
C. Zymase
D. Invertase
Right Answer: B. Rubisco
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The floral part that produces pollen grains is?
A. Sepal
B. Petal
C. Anther
D. Ovary
Right Answer: C. Anther
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Which of the following is not a stem modification?
A. Tuber of Sweet-potato
B. Bulb of onion
C. Corm of Arvi
D. Tuber of potato
Right Answer: A. Tuber of Sweet-potato
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Phytochrome is involved in?
A. Phototropism
B. Photorespiration
C. Photoperiodism
D. Geotropism
Right Answer: C. Photoperiodism
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Washing of Peeled vegetables removes the vitamin?
A. E
B. D
C. A
D. C
Right Answer: B. D
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The book “Origin of Species” was written by?
A. Linnaeus
B. Lamarck
C. Mendel
D. Darwin
Right Answer: D. Darwin
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Besides carbohydrates, a major source of energy in our food is constituted by?
A. Vitamins
B. Minerals
C. Fats
D. Proteins
Right Answer: C. Fats
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Mycology is the study of?
A. Virus
B. Hydrilla
C. Rhizobium
D. Fungi
Right Answer: D. Fungi
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Which of the following is not one of the important step in processing tea leaves?
A. Drying
B. Rolling
C. Hard wood
D. Fermenting
Right Answer: D. Fermenting
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During photosynthesis green plants absorb?
A. Oxygen
B. Nitrogen
C. Carbon monoxide
D. Carbon dioxide
Right Answer: D. Carbon dioxide
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Flowers emit fragrance to?
A. Purify air
B. Drive away flies
C. Attract insects
D. Perform all the above
Right Answer: C. Attract insects
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Water of coconut is?
A. Liquid endocarp
B. Liquid nucellus
C. Liquid mesocarp
D. Degenerated liquid endosperm
Right Answer: D. Degenerated liquid endosperm
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A molecule in plants comparable to haemoglobin in animals is?
A. Cellulose
B. Chlorophyll
C. Cytochrome
D. Carotene
Right Answer: B. Chlorophyll
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Saprophytes are the organisms which depend for food on?
A. Inorganic chemical compounds
B. Dead and decaying material
C. Living plants
D. Living animals
Right Answer: B. Dead and decaying material
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Which fruit has its seed outside?
A. Groudnut
B. Cashew nut
C. Strawberry
D. Banana
Right Answer: C. Strawberry
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Rhizobium is a kind of?
A. Parasitic bacteria
B. Saprophytic bacteria
C. Photosynthesis bacteria
D. Symbiotic bacteria
Right Answer: D. Symbiotic bacteria
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Poamto is somatic hybrid between?
A. Poppy and potato
B. Potato and tomato
C. Poppy and tamarind
D. Poppy and tomato
Right Answer: B. Potato and tomato
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Fixation of nitrogen in the soil?
A. Virus
B. Fungi
C. Bacteria
D. Protozoa
Right Answer: C. Bacteria
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Which one of the following is not a rabi crop?
A. Wheat
B. Mustard
C. Gram
D. Rice
Right Answer: D. Rice
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Which components of light are absorbed by chlorophyll?
A. Blue and red
B. Violet and yellow
C. Violet and red
D. Indigo and orange
Right Answer: C. Violet and red
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Which of the following groups of organisms reproduce faster?
A. Bacteria
B. Algae
C. Protozoa
D. Fungi
Right Answer: A. Bacteria
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In coriander, the useful parts are?
A. Leaves and dried fruits
B. Roots and leaves
C. Flower and dried fruits
D. Leaves and flower
Right Answer: A. Leaves and dried fruits
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The vitamin most readily destroyed by heat is?
A. Tocopherol
B. Riboflavin
C. Thiamine
D. Ascorbic acid
Right Answer: D. Ascorbic acid
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Syconus fruit develops from?
A. catkin
B. verticillaster
C. hypanthodium
D. cyathium
Right Answer: C. hypanthodium
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Stem cells which are capable of developing into other types of cells come from the?
A. Flower
B. Stem
C. Roots
D. Embryo
Right Answer: D. Embryo
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All the progeny obtained from a single plant by vegetative propagation are called?
A. Clones
B. Pure line
C. Indred line
D. Pedigree line
Right Answer: A. Clones
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Food crops comprise?
A. Jute, Cotton, Chillies
B. Linseed, Castor, Turmeric
C. Foodgrains, Pulses, Edible oil seed
D. Cooton, Tobacco, Sugarcane
Right Answer: C. Foodgrains, Pulses, Edible oil seed
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Entomology is the study of?
A. Fungi
B. Fossils
C. Insects
D. Birds
Right Answer: C. Insects
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Chlorophyll containing auto-tropic thallophytes is called as?
A. Bryophytes
B. Fungi
C. Algae
D. Lichens
Right Answer: C. Algae
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In maize plant, the CO2fixation mechanism is called?
A. C3 pathway
B. C4 pathway
C. CAM pathway
D. None of these
Right Answer: B. C4 pathway
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Clove, the commonly used spice is obtained from the?
A. Fruit
B. Flower bud
C. Stem
D. Root
Right Answer: B. Flower bud
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Vegetable oil are converted into solid fat (ghee) by?
A. Hydrogenation
B. Hydrolysis
C. Addition of agar
D. Oxidation using air and a catalyst
Right Answer: A. Hydrogenation
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The best example of Polyembryony is?
A. Citrus
B. Cocoa
C. Cycas
D. Capsicum
Right Answer: A. Citrus
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Where are the Eucalyptus trees found in abundance?
A. Nilgiri Hills
B. Mizo Hills
C. Naga Hills
D. Manipur Hills
Right Answer: A. Nilgiri Hills
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‘Comose’ seeds are seeds with?
A. Bristles
B. Hooks
C. Wings
D. Long hairs
Right Answer: D. Long hairs
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Which of the following element is obtained from the sea algae?
A. Vanadium
B. Iodine
C. Argon
D. Sulphur
Right Answer: B. Iodine
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Plants release energy during?
A. Respiration
B. Transpiration
C. Germination
D. Photosynthesis
Right Answer: A. Respiration
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The red, orange and yellow colours of leaf is due to?
A. Aldehydes
B. Tannis
C. Lignins
D. Carotenoid
Right Answer: D. Carotenoid
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Plants hormone causing abscission of leaves, senescene, bud dormancy and inhibition of cell division is?
A. IAA
B. Ethylene
C. Cytokinins
D. ABA
Right Answer: D. ABA
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Plants which flower only once in their life time are known as?
A. Monocarpic
B. Monogeneric
C. Polycarpic
D. Monogamous
Right Answer: A. Monocarpic
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An insect-catching plant is?
A. Smilax
B. Nerium
C. Nepenthes
D. Australian Acacia
Right Answer: C. Nepenthes
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Fiber diet includes?
A. Fats
B. Cellulose
C. Glycogen
D. Proteins
Right Answer: B. Cellulose
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Which of the following food stuff of the same quantity possesses the highest calorific value?
A. Cheese
B. Sugar
C. Butter
D. Apple
Right Answer: C. Butter
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Between adenine and thymine, there are?
A. Two hydrogen bonds
B. Three hydrogen bonds
C. One hydrogen bond
D. Four hydrogen bonds
Right Answer: A. Two hydrogen bonds
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Flower less plants are termed as?
A. Cryptogams
B. Thallophytes
C. Bryophytes
D. Phanerogams
Right Answer: A. Cryptogams
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which of the following food items is rich in iron?
A. Orange
B. Pulses
C. Apple
D. Rice
Right Answer: C. Apple
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Which one of the following is also called the ‘power plants’ of the cell?
A. Golgi body
B. Mitochondrion
C. Ribosome
D. Lysosome
Right Answer: B .Mitochondrion
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Which of the following is considered to be the best cholesterol?
A. HDL
B. VLDL
C. LDL
D. None of these
Right Answer: A. HDL
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