1. Which one of the following is a biodiesel plant? ( UPPSC PYQ)
a) Guggal
b) Rosha grass
c) Jatropha
d) Java gas
Answer. c) Jatropha;
2. The plants commonly considered as "Petro crops" are rich in ( UPPSC PYQ)
1. In carbohydrates
2. In Hydrocarbons
3. In protein
4. In Lipids
Select your answer from the given code:
a) 1, 2, and 3
b) 2 and 3
c) 1,3, and 4
d) 2,3, and 4
Answer. b) 2 and 3;
3. Consider the following statements: ( UPPSC PYQ)
Statement ( A): Cascuta (Amarbel) is an example of a Parasitic Plant.
Reason ( R): It feeds on the leaves of nourishing plants.
Select your answer using the codes given below:
a) (A) and (R) are both correct, and (R) is the correct explanation of (A)
a) (A) and (R) are both correct, and (R) is not the correct explanation of (A)
c) (A) is true, but (R) is false
d) (A) is false, but (R) is true
Answer. a) (A) and (R) are both correct, and (R) is the correct explanation of (A)
.
4. We obtain chilgoza from the seed of species- ( UPPSC PYQ)
a) Pine
b) Palm
c) Cycas
d) Cedar
Answer. a) Pine;
.
5. The most important stimulant present in tea leaves is ( UPPSC PYQ)
a) Caffeine
b) Phenylalanine
c) Brucine
d) Theobromine
Answer. a) Caffeine
.
6. Seaweeds are an important source of one of the following ( UPPSC PYQ)
a) Sulphur
b) Chlorine
c) Bromine
d) Iodine
Answer. d) Iodine;
.
7. Match List I to List II and select the correct answer using the codes given below the lists: ( UPPSC PYQ)
List I List II
( Product) ( Source)
A. Morphine 1. Bark
B. Asfoetida 2. Root
C. Rubber 3. Fruit
D. Quinine 4. Stem
Code:
A B C D
a) 1 2 3 4
b) 3 2 4 1
c) 4 2 1 3
d) 2 4 3 1
Answer. b) 3 2 4 1;
.
8. The chief mosquito repellent is obtained from ( UPPSC PYQ)
a) Basil ( Tulsi)
b) Lemon
c) Margo ( Neem)
d)Turmeric
Answer. c) Margo ( Neem);
.
9. Tapa cloth is obtained from the plants of which one of the following families? ( UPPSC PYQ 2021)
a) Asclepiadaceae
b) Moraceae
c) Graminae
d) Malvaceae
Answer. b) Moraceae
.
10. A clove represents which of the following? ( UPPSC PYQ 2021)
a) Terminal bud
b) Accessory bud
c) Flower bud
d) Vegetative bud
Answer. c) Flower bud;
A clove is made from a flower bud.
11. Fruits stored in a cold chamber exhibit longer storage life, because ( UPPSC PYQ 2021)
a) Exposure to sunlight is prevented
b) Concentration of Co2, in environment is increased
c) Rate of respiration is decreased
d) There is an increase in humidity
Answer. c) Rate of respiration is decreased
12. After cutting the cucumber if salt is added, then water comes out due to ( UPPSC PYQ 2021)
a) Active transport
b) Passive transport
c) Osmosis
d) Diffusion
Answer. c) Osmosis.
.
13. Which one of the following is a Biodiesel plant? ( UPPSC PYQ)
a) Jatropha
b) Java Grass
c) Rosha Grass
d) Guggul
Answer. a) Jatropha is a Biodiesel plant.
14. Which one of the following is a plant hormone? ( UPPSC PYQ)
a) Insulin
b) Cytokinin
c) Thyroxin
d) Estrogen
Answer. b) Cytokinin is a plant hormone.
.
15. Plants accept nitrogen in which form? ( UPPSC PYQ)
a) Nitrogen gas
b) Nitrite
c) Nitrate
d) Ammonia
Answer. c) Nitrate
.
16. Which of the following is not correctly matched? ( UPPSC PYQ)
a) Maize-Tasseling
b) Groundnut -Pegging
c) Chick pea-Tillering
d) Tobacco -Topping
Answer. c) Chick pea-Tillering;
.
17. Which of the following phytohormones is mainly responsible for fruit ripening? ( UPPSC PYQ)
a) Cytokinin
b) Abscisic acid
c) Ethylene
d) None of these
Answer. c) Ethylene;
.
18. Turmeric is an example of an underground stem, known as ( UPPSC PYQ)
a) Bulb
b) Tuber
c) Corm
d) Rhizome
Answer. d) Rhizome
19. Application of Gypsum provides which of the following elements to the plants? ( UPPSC PYQ)
a) Phosphorus
b) Sulphur
c) Magnesium
d) Iron
Answer. b) Sulphur
20. Which one of the following is NOT a passive factor of soil formation? ( UPPSC PYQ)
a) Climate
b) Topography
c) Parent material
d) Time
Answer. a) Climate is NOT a passive factor of soil formation. Climate is the active factor for soil formation.
21. Which one of the following gases is produced during photosynthesis? ( UPPSC PYQ)
a) Nitrogen
b) Hydrogen
c) Oxygen
d) Carbon dioxide
Answer. c) Oxygen gases are produced during photosynthesis;
.
22. Select the odd one out of the following. ( UPPSC PYQ)
a) Hydrogen
b) Mercury
c) Oxygen
d) Nitrogen
Answer. b) Mercury is not a gas.
23. Three words given below are related to one another in some way: ( UPPSC PYQ)
Potato, Carrot, Radish
Which word in the options is related to the above three given words in the same way?
a) Brinjal
b) Tomato
c) Lady's finger
d) Turnip
Answer. d) Turnip
24. Which of the following groups of organisms has the highest biodiversity? ( UPPSC PYQ)
a) Fishes
b) Amphibia
c) Mammals
d) Fungi
Answer. d) Fungi
25. Hydroponics is ( UPPSC PYQ)
a) Aquatic Plant culture
b) Cultivation of crop plants
c) Soil-free cultivation of plants
d) Growing floating aquatic plants
Answer. c) Soil-free cultivation of plants;
26. Which one of the following acids is present in Apple Fruits? ( UPPSC PYQ)
a) Formic acid
b) Nitric acid
c) Sulphuric acid
d) Malic acid
Answer. d) Malic acid
.
27. Nitrogen is NOT an essential constituent of - ( UPPSC PYQ)
a) Chlorophyll
b) RNA
c) DNA
d) Carbohydrate
Answer. d) Carbohydrate is the combination of carbon, hydrogen, and oxygen. Nitrogen is not found in carbohydrates.
.
28. Which among the following will be the shape of the pyramid of numbers in a parasitic food chain? ( UPPSC PYQ)
a) Circular
b) Rectangular
c) Upright
d) Inverted
Answer. d) Inverted;
29. Which one of the following is an example of non-celluloid fiber? ( UPPSC PYQ)
a) Jute
b) Rayon
c) Nylon
d) Linen
Answer. c) Nylon;
30. Match List-I with List-II and select the correct answer using the codes given below the lists. ( UPPSC PYQ)
List-I List-II
( Fungal Genus) ( Fruiting Bodles)
A. Fusarium specis 1. Pycnidium
B. Collectotrichum species 2. Apothecia
C. Sclerotinia specis 3. Acervulus
D. Phoma species 4. Sporodochium
Codes:
A B C D
a) 4 2 1 3
b) 4 3 2 1
c) 4 1 3 2
d) 3 4 2 1
Answer. b) 4 3 2 1
31. Which of the following is not known as "Micronutrients"? ( UPPSC PYQ)
a) Calcium
b) Molybdenum
c) Zink
d) Iron
Answer. a) Calcium is a macronutrient of plants.
.
32. Anaerobic respiration is called as- ( UPPSC PYQ)
a) Intracellular respiration
b) Molecular respiration
c) Extra molecular respiration
d) Intramolecular respiration
Answer. d) Intramolecular respiration;
.
33. The Tulsi plant has medicinal values due to the presence of the following-
a) Inorganic acid
b) Organic acid
c) Phenols and Flavonoids
d) Lithium Bicabonate
Answer. c) Phenols and Flavonoids;
.
34. Which nutrients are most useful for enhancing oil content in mustard crops? ( UPPSC PYQ)
a) Calcium
b) Sulphur
c) Zink
d) Iron
Answer. b) Sulphur nutrients are most useful for enhancing oil content in mustard crops;
.
35. Which one of the following plants is called "Doctor of Home"? ( UPPSC PYQ)
a) Pipal
b) Aomla
c) Neem
d) Banana
Answer. c) Neem
36. Insectivorous plants catch and eat insects to make up for the deficiency of which of the following elements? ( UPPSC PYQ)
a) Manganese
b) Nitrogen
c) Magnesium
d) Sulphur
Answer. b) Nitrogen
37. The soil in which insectivorous plants grow is deficient in ( UPPSC PYQ)
a) Magnesium
b) Calcium
c) Nitrogen
d) Water
Answer. c) Nitrogen
38. In all bio compounds, the most necessary fundamental elements is ( UPPSC PYQ)
a) Sulphur
b) Carbon
c) Oxygen
d) Nitrogen
Answer. b) Carbon
39. Which of the following is not a Natural Polymer? ( UPPSC PYQ)
a) Wool
b) Silk
c) Leather
d) Nylon
Answer. d) Nylon;
40. Which one of the following is a natural polymer? ( UPPSC PYQ)
a) Bakelite
b) Silk
c) Kevlar
d) Lexan
Answer. b) Silk
41. Which is the oldest organism on earth? ( UPPSC PYQ)
a) Blue-green Algae
b) Fungi
c) Amoeba
d) Euglena
Answer. a) Blue-green Algae;
.
42. Which one of the following needs to be correctly matched? ( UPPSC PYQ)
a) Yeast: Fermentation
b) Casein: Milk Protein
c) Aloe Vera: Angiosperm
d) Nepenthes: Parasitic Angiosperm
Answer. d) Nepenthes: Parasitic Angiosperm
43. Nepenthes Khasiana a rare and endangered plant is found in ( UPPSC PYQ)
a) Himachal Pradesh
b) Madhya Pradesh
c) Meghalaya
d) Uttar Pradesh
Answer. c) Meghalaya;
.
44. Turmeric is obtained from which part of the plant? ( UPPSC PYQ)
a) Root
b) Fruit
c) Flower
d) Stem
Answer. d) Stem
45. The type of fruit in which lychee can be kept is ( UPPSC PYQ)
a) Drupe
b) Hesperidium
c) Nut
d) One seeded berry
Answer. a) Drupe
46. Which one of the following underground-grown vegetables is a modified root? ( UPPSC PYQ)
a) Potato
b) Sweet Potato
c) Bandda
d) Jimikand
Answer. b) Sweet Potato
47. Which of the following is a stem? ( UPPSC PYQ)
a) Turnip
b) Ginger
c) Carrot
d) Sweet Potato
Answer. b) Ginger
48. Which one of the following spices is a flower bud? ( UPPSC PYQ)
a) Cumin
b) Clove
c) Pepper
d) Turmeric
Answer. b) Clove
49. Cloves are ( UPPSC PYQ)
a) Nodules of stem
b) Nodules of roots
c) Leaves
d) Dried flowers
Answer. d) Dried flowers
50. Saffron is a dried mixture of ( UPPSC PYQ)
a) Leaf and Stem
b) Petals and roots
c) Seed-forming parts of the flower
d) Seeds and buds
Answer. c) Seed-forming parts of the flower
51. In the following pairs of plants and their edible parts, which pair is not correctly matched? ( UPPSC PYQ)
a) Ginger: Rhizome
b) Onion: Fleshy Leaves
c) Potato: Roots
d) Coconut: Endosperm
Answer. c) Potato: Roots
52. Which of the following parts of potato is edible? ( UPPSC PYQ)
a) Stem
b) Seed
c) Root
d) Fruit
Answer. a) Stem
53. The characteristic odor of garlic is due to ( UPPSC PYQ)
a) A Chloro compound
b) A Sulphur Compound
c) A Fluorine compound
d) Acetic Acid
Answer. b) A Sulphur Compound
54. Peeling of onions causes tears as Onion release ( UPPSC PYQ)
a) Sulphonic acid
b) Sulfenic Acid
c) Amino Acid
d) Carbolic Acid
Answer. b) Sulfenic Acid
55. The pungency of chili is due to ( UPPSC PYQ)
a) Presence of Lycopene
b) Presence of Capsaicin
c) Presence of Carotene
d) Presence of Anthocyanin
Answer. b) Presence of Capsaicin
56. The effective drug for malaria is quinine extracted ( UPPSC PYQ)
a) From the bark of cinnamon
b) From the bark of cinchona
c) With basil leaves
d) From the bark of the catechu tree
Answer. b) From the bark of cinchona
57. In which part of the cinchona plant quinine occurs naturally? ( UPPSC PYQ)
a) Root
b) Fruit
c) Seeds
d) Bark
Answer. d) Bark
58. The Arteether medicine which is used to cure malaria is obtained from a ( UPPSC PYQ)
a) Seeded plant
b) Fungus
c) Bacteria
d) Algae
Answer. a) Seeded plant
59. The drug obtained from the bark of cinchona was used for treating malaria. The synthetic drug that replaced the natural product is ( UPPSC PYQ)
a) Chloromycetin
b) Chloroquine
c) Tetracycline
d) Ampicillin
Answer. b) Chloroquine
60. The mulberry fruit is ( UPPSC PYQ)
a) Sorosis
b) Syconus
c) Samara
d) Berry
Answer. a) Sorosis
61. Which one of the following fibers is not a product of a plant stem? ( UPPSC PYQ)
a) Sunn
b) Hemp
c) Jute
d) Cotton
Answer. d) Cotton
62. Leg hemoglobin is found in ( UPPSC PYQ)
a) Human blood
b) Rabbit blood
c) Legume root nodules
d) Chicken blood
Answer. c) Legume root nodules
63. Desert plants have longer root systems because ( UPPSC PYQ)
a) High temperature of the soil stimulates the growth of roots
b) Roots grow in search of water
c) Soil does not contain water, hence becomes compact and presses the roots to grow longer
d) Roots move opposite to the solar heat
Answer. b) Roots grow in search of water
64. The maximum amount of water that plants require is absorbed through the following: ( UPPSC PYQ)
a) From the embryonic zone
b) From the edge point
c) From the elongation zone
d) From roots hair
Answer. d) From roots hair
65. A Hydrophyte is ( UPPSC PYQ)
a) A marine animal
b) An aquatic plant
c) A plant disease
d) A rootless plant
Answer. b) An aquatic plant
66. Which of the following is not correctly matched? ( UPPSC PYQ)
a) Autotroph: producer
b) Heterotroph: Consumer
c) Saprotroph: Decomposer
d) Herbivore: Secondary consumer
Answer. d) Herbivore: Secondary consumer
67. The use of biologically synthesized nanoparticles is a new eco-friendly technology, which has great potential in cancer treatment. In this technique, plant extracts are used. This plant is: ( UPPSC PYQ)
a) Madar
b) Parthenium
c) Paddy
d) Lemon grass
Answer. b) Parthenium
68. Which one of the following is related to soil? ( UPPSC PYQ)
a) Edaphic
b) Climate
c) Biotic
d) Topography
Answer. a) Edaphic
69. Study of Zoology deals with ( UPPSC PYQ)
a) Living animals only
b) Living plants only
c) Both living and dead animals
d) Both living and dead plants
Answer. c) Both living and dead animals;
70. Which of the following subjects of the data set is associated with the study of concerning population and humanity? ( UPPSC PYQ)
a) Ecology
b) Genetics
c) Demography
d) Virology
Answer. c) Demography
71. Which of the following elements is present in Chlorophyll ( UPPSC PYQ)
a) Iron
b) Copper
c) Magnesium
d) Manganese
Answer. c) Magnesium
72. Which one of the following gases is essential for the photosynthesis process? ( UPPSC PYQ)
a) CO
b) CO2
c) N2
d) O2
Answer. b) CO2
73. Oxygen, which is liberated during photosynthesis, comes from ( UPPSC PYQ)
a) Water
b) Carbon dioxide
c) Chlorophyll
d) Phosphoglyceric acid
Answer. a) Water
74. The process by which plants synthesize their food is called ( UPPSC PYQ)
a) Osmosis
b) Respiration
c) Photosynthesis
d) Plasmolysis
Answer. c) Photosynthesis
75. Which light is most effective in photosynthesis? ( UPPSC PYQ)
a) Red
b) Blue
c) Green
d) Violet
Answer. a) Red
76. Which of the following has the maximum efficiency to convert solar energy into chemical energy? ( UPPSC PYQ)
a) Chlorella
b) Tiger
c) Earthworm
d) Cuscutta
Answer. a) Chlorella;
.
77. Which one of the following does not increase the amount of carbon dioxide in the carbon cycle on Earth? ( UPPSC PYQ)
a) Respiration
b) Photosynthesis
c) Decay of organic matter
d) Volcanic action
Answer. b) Photosynthesis
78. Which of the following is not a plant hormone? ( UPPSC PYQ)
a) Cytokinin
b) Ethylene
c) Insulin
d) Jibberlin
Answer. c) Insulin;
.
79. Which of the following is a plant hormone? ( UPPSC PYQ)
a) Insulin
b) Thyroxine
c) Estrogen
d) Cytokinin
Answer. d) Cytokinin
80. How does the plant cell differ from the animal cell? ( UPPSC PYQ)
a) Mitochondria
b) Cell wall
c) Presence of protoplasm
d) Cell nucleus
Answer. b) Cell wall;
.
81. Which of the following organelles is called the "Powerhouse" of the cell? ( UPPSC PYQ)
a) Ribosome
b) Mitochondria
c) Cell Membrane
d) Centrosome
Answer. b) Mitochondria;
.
82. Plasma membrane is built up of ( UPPSC PYQ)
a) Protein
b) Lipid
c) Carbohydrate
d) Both A and B
Answer. d) Both A and B
83. The organism used by Mendel to formulate his classical "laws of inheritance" was- ( UPPSC PYQ)
a) Drosophila
b) Snapdragon
c) Garden pea
d) Sweet pea
Answer. c) Garden pea
84. The gas used in the artificial ripening of green fruit is ( UPPSC PYQ)
a) Acetylene
b) Ethane
c) Hydrogen
d) Carbon dioxide
Answer. a) Acetylene;
.
85. "Leopold Matrix" is associated with ( UPPSC PYQ)
a) Weather forecasting
b) Disaster Management
c) Environmental Impact assessment method
d) Environmental Law
Answer. c) Environmental Impact assessment method;
."
86. Which one of the following pairs is NOT correctly matched? ( 2022)
a) Rayon- Modified starch
b) Aspartame - Synthetic Sweetnener
c) Oxytocin - Hormone
d) Neoprene - Specialized rubber
Answer. a) Rayon- Modified starch
Reyon is artificial silk.
87. Nitrogen is NOT an essential Constituents of ( UPPSC PYQ 2021)
a) Chlorophyll
b) RNA
c) DNA
d) Carbohydrate
Answer. d) Carbohydrate
88. Which organelle is responsible for photosynthesis in plant cells?
a) Mitochondria
b) Chloroplast
c) Ribosome
d) Golgi apparatus
Answer. b) Chloroplast
Mitochondria: cellular respiration
Chloroplast: Photosynthesis
Ribosome: Protein factory
Golgi Apparatus: Protein modification
89. Which of the following is true regarding Plastids (double-membrane organelles that are found in the cells of plants and algae):
a) Chloroplasts are responsible for the Green color of plant leaves
b) Chromoplasts are responsible for Colors in flowers and fruits
c) Leucoplasts are found in roots.
d) All of the above
Answer. d) All of the above
90. Which Plastid is found largest in the plants?
a) Chloroplasts
b) Chromoplasts
c) Leucoplasts
d) Both A & B
Answer. a) Chloroplasts ;
Chloroplasts: 40 %
Chromoplasts: 35 %
Leucoplasts: 25 %
91. Which plastid is most commonly present in fruits of plants?
a) Chloroplast
b) Chromoplast
c) Leucoplast
d) None of these
Answer. b) Chromoplast: Fruit and Flower
Chloroplast: Leaf
Leucoplast: Roots
92. Which of the following organelles contain their own genetic material and ribosomes?
1. Lysosomes
2. Endoplasmic reticulum
3. Plastids
4. Mitochondria
a) 1,2
b) 1, 3
c) 3, 4
d) 1,2, 3
Answer. c) 3, 4
93. Which of the following is not a type of nutrition in a living organism?
a) Autotrophic nutrition
b) Heterotrophic nutrition
c) Saprotrophic nutrition
d) Inorganic nutrition
Answer. d) Inorganic nutrition is not a type of nutrition in a living organism
94. The "xylem" in plants is responsible mainly for ( UPPSC 2015)
a) Transportation of food
b) Transportation of amino acid
c) Transportation of water
d) Transportation of oxygen
Answer. c) Transportation of water from root to leaves
95. The "Phloem" in plants is responsible mainly for
a) Transportation of food
b) Transportation of amino acid
c) Transportation of water
d) Transportation of oxygen
Answer. a) Transportation of food from leaves to other parts of plants.
96. Which of the following is not a characteristic of prokaryotic cells?
a) Presence of a well-organized nucleus
b) Lack of membrane-bound organelles
c) Presence of ribosomes
d) Single-celled organisms
Answer. a) Presence of a well-organized nucleus
97. Cycas, Pinus, and Gingko are the example of ( SSC )
a) Bryophytes
b) Gymnosperms
c) Angiosperms
d) Thallophytes
Answer. b) Gymnosperms
98. Which of the following is not a characteristic of the Kingdom Plantae?
a) Presence of Chloroplasts
b) Autotrophic nutrition
c) Presence of cell walls made of cellulose
d) Heterotrophic nutrition
Answer. d) Heterotrophic nutrition
99. Which of the following develops into the shoot during seed germination?
a) Radical
b) Plumule
c) Cotyledon
d) Zygote
Answer. b) Plumule
100. Plants in which group are commonly called algae?
a) Gymnosperms
b) Thallophyte
c) Pteridophyte
d) Bryophyta
Answer. b) Thallophyte
The study of algae is known as Phycology.
Ulva is known as sea salad.
101. Which of the following is NOT a characteristic of monocots?
a) Presence of one cotyledon in the seed
b) Parallel venation in the leaves
c) Fibrous root system
d) Production of flowers with four or five petals
Answer. d) Production of flowers with four or five petals
102. Which of the following is a viral disease that affects plants?
a) Anthracnose
b) Black spot
c) Mosaic
d) Rust
Answer. c) Mosaic
103. Who is the father of Botany?
a) Aristotle
b) Jagadish Chandra Bose
c) Theophrastus
d) William Roxburgh
Answer. c) Theophrastus wrote the famous book named " Historia Plantorium", which is a description of about 500 plants.
104. Who is the father of Botany in India?
a) Aristotle
b) Jagadish Chandra Bose
c) Theophrastus
d) William Roxburgh
Answer. d) William Roxburgh
105. Pomology is the branch of botany that deals with the study of
a) Flower
b) Fruits
c) Fish
d) Cells
Answer. b) Fruits
106. Floriculture is the branch of botany that deals with the study of
a) Flower
b) Fruits
c) Fish
d) Cells
Answer. a) Flower
107.
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