Free & Premium Study Material · Online Courses · Instant Download+91 99398 78821 · support@downloadstore.in
downloadstoreSTUDY MATERIAL
LoginRegister🛒0

Plant Physiology MCQ

177 MCQ questions with answers and explanations · page 5 of 8

Test yourself▶ 25 question test▶ 50 question test

Q101. Incomplete break down of sugar in anaerobic respiration form-

  1. AFructose and water
  2. BGlucose and CO2
  3. CAlcohol and CO2
  4. DWater and CO2
Show answer & explanation

Answer: C) Alcohol and CO2

Q102. What is the importance of respiration in plant-

  1. AIt liberates energy
  2. BIt provides O2 to plants
  3. CIt liberates CO2
  4. DAll the above
Show answer & explanation

Answer: A) It liberates energy

Q103. In glycolysis untimately-

  1. AProtein is converted into glucose
  2. BGlucose is converted to glycogen
  3. CStarch is converted into glycogen
  4. DGlucose is converted into pyruvic acid
Show answer & explanation

Answer: D) Glucose is converted into pyruvic acid

Q104. In krebs cycle-

  1. APyruvic acid is converted into CO2 and H2O
  2. BADP is converted into CO2
  3. CGlucose is converted into CO2
  4. DPyruvic acid is converted into ATP
Show answer & explanation

Answer: A) Pyruvic acid is converted into CO2 and H2O

Q105. Alcohol is product of-

  1. AAnaerobic respiration
  2. BAerobic respiration
  3. CPhotosynthesis
  4. DGlycolysis
Show answer & explanation

Answer: A) Anaerobic respiration

Q106. Respiration is found in-

  1. AIn all living cell in light
  2. BAll living cell in dark
  3. CIn all living cell both in light and dark
  4. DOnly in non green cells both in light and dark
Show answer & explanation

Answer: C) In all living cell both in light and dark

Q107. Aerobic respiration rakes place-

  1. AIn presence of O2
  2. BIn absence of oxygen
  3. CIn presence of CO2
  4. DIn absence of CO2
Show answer & explanation

Answer: A) In presence of O2

Q108. In mitochondria ATP synthesis occurs-

  1. AAt the outer membrane
  2. BAt the cristae
  3. CIn the matrix
  4. DIn the intra cristal space
Show answer & explanation

Answer: B) At the cristae

Q109. Maximum amount of energy (ATP) is liberated on oxidation of-

  1. AFats
  2. BProtein
  3. CStarch
  4. DVitamin
Show answer & explanation

Answer: A) Fats

Q110. End product of aerobic respiration are-

  1. ASugar and oxygen
  2. BCarbon dioxide, water and energy
  3. CWater and energy
  4. DCarbon dioxide and energy
Show answer & explanation

Answer: B) Carbon dioxide, water and energy

Q111. Pyruvic acid is formed at the end of-

  1. ACalvin cycle
  2. BGlycolysis
  3. CKreb cycle
  4. DPentose
Show answer & explanation

Answer: B) Glycolysis

Q112. Which one yield the maximum energy ?

  1. AKrebs cycle
  2. BAnaerobic respiration
  3. CGlycolysis
  4. DAerobic respiration
Show answer & explanation

Answer: D) Aerobic respiration

Q113. Mitochondria are store house of-

  1. AGlycogen
  2. BGlucose
  3. CATP
  4. DFats
Show answer & explanation

Answer: C) ATP

Q114. Respiration is-

  1. ACatabolic process that uses carbon dioxide, produce oxygen and converted released energy to ATP
  2. BAnabolic process that uses oxygen and carbon dioxide to form ATP
  3. CAnabolic process that uses oxygen, produces carbon dioxide and converts released energy into ATP
  4. DCatabolic process that uses oxygen, produces carbon dioxide and converts released energy into ATP
Show answer & explanation

Answer: D) Catabolic process that uses oxygen, produces carbon dioxide and converts released energy into ATP

Q115. Which one can respire in absence of oxygen ?

  1. ASeeds
  2. BLeaves
  3. CStem
  4. DRoot
Show answer & explanation

Answer: A) Seeds

Q116. Krebs cycle is-

  1. AAerobic
  2. BAnaerobic
  3. CAnabolic
  4. DNone of the above
Show answer & explanation

Answer: A) Aerobic

Q117. Krebs cycle forms an important product-

  1. AAcetyl CoA
  2. BADP
  3. CATP
  4. DWater
Show answer & explanation

Answer: C) ATP

Q118. Which one of following is a plant harmone ?

  1. AAdreline
  2. BInnsulin
  3. CSecretin
  4. DAuxin
Show answer & explanation

Answer: D) Auxin

Q119. 2-4-D is a-

  1. AInsecteside
  2. BExplosive
  3. CFungicides
  4. DWeedicides
Show answer & explanation

Answer: D) Weedicides

Q120. Which one of following statements is correct about harmone ?

  1. AIt is a organic compound which control the growth of plant
  2. BIt is a special kind of organic compound found in small amount which control metabolic activity and growth of plant
  3. CIts different concentration have different effect on different organ
  4. DAll of these
Show answer & explanation

Answer: D) All of these

Q121. Indole acetic acid is-

  1. AEnzyme
  2. BFungicides
  3. CAmino acid
  4. DAuxins
Show answer & explanation

Answer: D) Auxins

Q122. Which of the following statement is correct regarding auxin ?

  1. AIt inhibits the falling of leaf
  2. BIt destroy weeds
  3. CIt permote apical growth
  4. DAll of above
Show answer & explanation

Answer: D) All of above

Q123. Chemicals having profound effect on growth and development are-

  1. AEnzyms
  2. BPhyto harmones
  3. CCatalytic agents
  4. DManure
Show answer & explanation

Answer: B) Phyto harmones

Q124. Food products are kept in cold storage or refrigeration in order to-

  1. AMake the tasty
  2. BUse in off season
  3. CMaintenance of ffreshness, longevity and teste due to low respiration
  4. DKeep them cool
Show answer & explanation

Answer: C) Maintenance of ffreshness, longevity and teste due to low respiration

Q125. Naturally accurring auxin is-

  1. AIAA
  2. BEthylene
  3. C2,4-D
  4. DBenzal dehyole
Show answer & explanation

Answer: A) IAA

1…345678
← Plant Disease MCQPlant Tissue MCQ →
💬