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.
Here we have large collection of Botany Mcqs for all Students and jobs test preparation purpose. These Botany Mcqs will be updated on daily basis and added more multiple choice question about Botany frequently.You can prepare your Botany Subject for different classes like 9th class, 10th class ,11th class 12th class exams, Entry Test like MCAT NTS ,OTS ,PTS ,BTS, GTS, Jobs Test,Recruitment Test like PPSC CSS FPSC SPSC KPPSC and interviews here.
Botany Mcqs Online With Answers for NTS PPSC Entry Test Classes
Botany
Botany Mcqs with Answers Solved
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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Suagrcane plant are usually propagated by vegetative means because?
A. it is possible to maintain genetic quality
B. The incidence of disease may be reduced
C. They do not produce seed
D. None of the above
Right Answer: C. They do not produce seed
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Both heterospory and circinate ptyxis occur in?
A. Dryopteris
B. Pinus
C. Cycas
D. Funaria
Right Answer: C. Cycas
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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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A plant with 30 cm or more circumference from human chest height is identified as?
A. Tree
B. Shrub
C. Medicinal herbs
D. Herb
Right Answer: C. Medicinal herbs
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The enzyme in whose presence glucose and fructose and converted into alcohol is?
A. Invertase
B. Diastase
C. Zymase
D. Maltase
Right Answer: C. Zymase
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Rod shaped bacteria is called?
A. Coccus
B. Bacillus
C. Coam
D. Spirillum
Right Answer: B. Bacillus
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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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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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In a plant, the xylem tissue conducts?
A. Food
B. Water
C. All of the above
D. None of the above
Right Answer: B. Water
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The stage of meosis in which pairing of homologous chromosomes starts is called?
A. Leptotene
B. Zygotene
C. Diplotene
D. None of these
Right Answer: B. Zygotene
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The tallest and thickest type of grass is?
A. Fodder
B. Bamboo
C. Lichens
D. Alfalfa
Right Answer: B. Bamboo
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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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A seed can germinate in the absence of?
A. Adequate light
B. Supply of oxygen
C. Suitable moisture
D. Suitable temperature
Right Answer: A. Adequate light
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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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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 curcumin is isolated from?
A. Garlic
B. Turmeric
C. Sunflower
D. Rose flower
Right Answer: B. Turmeric
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Chlorosis in plants occur due to?
A. High sunlight intensity
B. Low sunlight intensity
C. Absorption of yellow pigment from the soil
D. Deficiency of Mg and Fe in the soil
Right Answer: D. Deficiency of Mg and Fe in the soil
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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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Phytochrome is involved in?
A. Phototropism
B. Photorespiration
C. Photoperiodism
D. Geotropism
Right Answer: C. Photoperiodism
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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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Which of the following is used to determine the rate of transpiration in plants?
A. Porometer/hygrometer
B. Potometers
C. Auxanometer
D. Tensiometer/barometer
Right Answer: B. Potometers
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Opium is a plant product obtained from?
A. Roots
B. Stem bark
C. Dried latex
D. Dried leaves
Right Answer: C. Dried latex
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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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Cuscuta is a?
A. Partial root parasite
B. Complete root parasite
C. Partial stem parasite
D. Complete stem parasite
Right Answer: D. Complete stem parasite
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Ripe grapes contain?
A. Fructose
B. Glucose
C. Sucrose
D. Galactose
Right Answer: A. Fructose
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Which of the biomes has been increased in area by human activities?
A. Savanna
B. Grassland
C. Desert
D. Coniferous forest
Right Answer: C. Desert
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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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Bio-diesel is mostly produced by?
A. Liliaceae
B. Malvaceae
C. Myrtaceae
D. Euphorbiaaceae
Right Answer: D. Euphorbiaaceae
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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 is not an insectivorous plant?
A. Cuscuta
B. Utricularia
C. Nepenthes
D. Drosera
Right Answer: A. Cuscuta
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Ascent of sap in plants takes place through?
A. Xylem
B. Pith
C. Phloem
D. Cambium
Right Answer: A. Xylem
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Select the bio-fertilizer in the following?
A. Cattle dung
B. Algae and blue-green algae
C. Compost
D. Ammonium sulphate
Right Answer: B. Algae and blue-green algae
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Blue-green algae are included in the group?
A. Protozoa
B. Cyanobacteria
C. Eubacteria
D. Fungi
Right Answer: B. Cyanobacteria
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In cactus, the spines are the modified?
A. Leave
B. Stem
C. Bud
D. Stipulse
Right Answer: A. Leaves
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Respiration is regarded as a?
A. Reduction process
B. Anabolic process
C. Synthetic process
D. Catabolic process
Right Answer: D. Catabolic process
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The gametophyte is called prothallus in?
A. Bryophyte
B. Thallophyta
C. Spermatophyta
D. Pteridophyta
Right Answer: D. Pteridophyta
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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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Fist is a first class protein as it contains?
A. Essential amino-acids
B. Non essential amino acids
C. All essential fatty acids
D. No amino acids
Right Answer: A. Essential amnio-acids
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What causes common cold?
A. Fungi
B. Protozoa
C. Virus
D. Bacteria
Right Answer: C. Virus
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A plant with compound leave is?
A. Hibiscus
B. Peepal
C. Coconut
D. Papaya
Right Answer: C. Coconut
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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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The protein part of enzyme is?
A. Prosthatic group
B. Apoenzyme
C. Holoenzyme
D. Zymogen
Right Answer: B. Apoenzyme
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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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In cauliflower plant the the useful part is?
A. Young inflorescence
B. Root
C. Leaves
D. Underground stem
Right Answer: A. Young inflorescence
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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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The part of the flower that can carry out photosynthesis is?
A. Gynoecium
B. Corolla
C. Calyx
D. Androecium
Right Answer: C. Calyx
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Which of the following plant absorbs in red and farred region of light?
A. Cryptochrome
B. Carotenoid
C. Chlorophyll
D. Phytochrome
Right Answer: D. Phytochrome
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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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Which one of the following essential elements can land plants normally obtained directly from air?
A. Hydrogen
B. Nitrogen
C. Carbon
D. Phosphorus
Right Answer: B. Nitrogen
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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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Eyes of potato are useful for?
A. Vegetative propagation
B. Nutrition
C. Reproduction
D. Respiration
Right Answer: A. Vegetative propagation
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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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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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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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Through ‘photosynthesis’ green plants generates?
A. Nutrients
B. Inorganic material
C. Minerals
D. Organic materials
Right Answer: D. Organic materials
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When a single gene has multiple effects,the phenomenon is called?
A. Codominance
B. Epistasis
C. Genostasis
D. Pleiotropy
Right Answer: D. Pleiotropy
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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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Which of the following is a biotic component of an ecosystem?
A. Producers
B. Consumers
C. Decomposers
D. All of these
Right Answer: D. All of these
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Who discovered Cholera germs?
A. Dresser
B. Rene Laennec
C. Robert Koch
D. Hansen
Right Answer: C. Robert Koch
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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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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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Father of Indian green revolution is?
A. B.P. Pal
B. Norman Borlaug
C. M.S. Swaminathan
D. K.C. Mehta
Right Answer: C. M.S. Swaminathan
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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 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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Cereals are a rich source of?
A. Starch
B. Maltose
C. Glucose
D. Fructose
Right Answer: A. Starch
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Vegetables and fruit should be a part of our diet because the stimulate?
A. Excretion
B. Respiration
C. Salivation
D. Peristalsis
Right Answer: D. Peristalsis
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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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Vascular cryptogams are?
A. Bryophytes
B. Spermatophytes
C. Pteridophyte
D. None of these
Right Answer: C. Pteridophyte
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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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During photosynthesis green plants absorb?
A. Oxygen
B. Nitrogen
C. Carbon monoxide
D. Carbon dioxide
Right Answer: D. Carbon dioxide
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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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The loading of phloem during translocation means?
A. elongation of phloem cells
B. Separation of phloem parenchyma
C. Strengthening of phloem fibers
D. Pouring of sugars into phloem
Right Answer: D. Pouring of sugars into phloem
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Water in plants is trans-ported by?
A. Xylem
B. Epidermis
C. Phloem
D. Cambium
Right Answer: A. Xylem
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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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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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Two richest known sources of edible protein are?
A. Soyabean and groundnut
B. Meat and eggs
C. Milk and leafy vegetables
D. Some algae and other micro-organism
Right Answer: B. Meat and eggs
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An example of false fruit is?
A. Tomato
B. Mango
C. Apple
D. Guava
Right Answer: C. Apple
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In a dihybrid cross, the ratio of F2 generation is?
A. 9:3:3:1
B. 3:1
C. 1:2:1
D. 1:1
Right Answer: A. 9:3:3:1
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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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A plant with fibrous root system is?
A. Mustard
B. Wheat
C. Bean
D. Pea
Right Answer: B. Wheat
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Solitary cymose inflorescence is abserved in?
A. Gardenia
B. Chinarose
C. Rose
D. Tuberose
Right Answer: A. Gardenia
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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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Gasohol is?
A. 20% ethanol + 80% petrol
B. 20% ethanol + 70% petrol + 10% kerosene
C. 10% ethanol + 80% petrol + 10% kerosene
D. 10% ethanol + 90% petrol
Right Answer: A. 20% ethanol + 80% petrol
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Syconus fruit develops from?
A. catkin
B. verticillaster
C. hypanthodium
D. cyathium
Right Answer: C. hypanthodium
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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 represents a food-chain involving a producer, a vegetarian and a non-vegetarian?
A. Tiger-Rabbit-Owl
B. Grass-Insect-Elephant
C. Plant-Rabbit-Tiger
D. Fish-Insect-Whale
Right Answer: C. Plant-Rabbit-Tiger
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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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Fixation of nitrogen in the soil?
A. Virus
B. Fungi
C. Bacteria
D. Protozoa
Right Answer: C. Bacteria
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Salt-loving plants are known as?
A. Glycophytes
B. Halophytes
C. Xerophytes
D. Mesophytes
Right Answer: B. Halophytes
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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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Plants release energy during?
A. Respiration
B. Transpiration
C. Germination
D. Photosynthesis
Right Answer: A. Respiration
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The reagent used to test the presence of starch in leaves is?
A. Million reagent
B. Fehling’s solution
C. Iodine solution
D. Benedict’s solution
Right Answer: C. Iodine solution
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The cuticle is absent in?
A. Stem
B. Fruit
C. Leaf
D. Root
Right Answer: D. Root
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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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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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Flower less plants are termed as?
A. Cryptogams
B. Thallophytes
C. Bryophytes
D. Phanerogams
Right Answer: A. Cryptogams
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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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The deciduous trees will?
A. Synthesis their own food
B. Depend on others of their food
C. Shed their leaves every year
D. Not lose their leaves
Right Answer: C. Shed their leaves every year
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A large number of identical plants can be obtained in short span of time through?
A. Stem cuttings
B. Hydroponics method
C. Large number of seeds of a single plant
D. Tissue culture technique
Right Answer: D. Tissue culture technique
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