Biology Selected Questions and Answers Set 24

February 13, 2019 entranciology Biology Selected Questions and Answers, Solved Questions and Answers Sets For Competitive Exams 0

Q.1:- Cactus is referred to as ? [SSC (CGL) Exam 2014]

  1. Hydrophyte
  2. Mesophyte
  3. Xerophyte
  4. Epiphyte

Q.2:- Agar-Agar is prepared from ? [BSSC Exam 2015]

  1. Algae
  2. Lichens
  3. Fungi
  4. Bryophyte

Q.3:- Which plant is called herbal-Indian Doctor ? [SSC Exam 2011]

  1. Neem
  2. Amla
  3. Mango
  4. Tulsi

Q.4:- Transfer of pollen grain from pollen sac to stigma is called ?

  1. Thalmus
  2. Pollination
  3. Fertilization
  4. Germination

Q.5:- The inflorescence of wheat is ? [BSSC Exam 2015]

  1. Raceme
  2. Catkin
  3. Spike
  4. Panicle

Q.6:- Which of the following plants only produce seed but not fruit ? [RRB Bhopal TC/CC Exam 2005]

  1. Sugar Cane
  2. Peanut
  3. Cycas
  4. Almond

Q.7:- Double fertilization is main feature of ?

  1. Bryophytes
  2. Pteridophytes
  3. Gymnosperm
  4. Angiosperm

Q.8:- In plant which one of the following tissues is dead ? [NDA Exam 2006]

  1. Parenchyma
  2. Collenchyma
  3. Sclerenchyma
  4. Phloem

Q.9:- Which of the following part modified into pitcher in pitcher plant ? [IAS (Pre) Exam 2007]

  1. Stem
  2. Leaf
  3. Petiole
  4. Stipule
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Q.10:- Which part of pear is edible ? [RRB Ahmedabad ASM/GG Exam 2004]

  1. Fleshy Thalmus
  2. Spores
  3. Both (A) and (B)
  4. Pod

Q.11:- Which of the following oils is gaining popularity as a cooking option in India ? [BSSC Exam 2015]

  1. Olive
  2. Coconut
  3. Pongamia
  4. Peanut

Q.12:- The green pigment found in plants that perform photosynthesis is ? [BSSC Exam 2015]

  1. Chlorophyll
  2. Chloroplast
  3. Chloroform
  4. None of the above

Q.13:- Transpiration helps in ?

  1. Transportation of minerals
  2. Ascent of sap
  3. Cooling
  4. All of the above

Q.14:- Wilting of plants occurs due to excessive ? [ACIO G II (Exe) Exam 2013]

  1. Absorption
  2. Transpiration
  3. Respiration
  4. Guttation

Q.15:- Which component of plants receives stimulus for flowering ? [BPSC Exam 2011]

  1. Stems
  2. Branches
  3. Leaves
  4. Roots

Q.16:- An element present in chlorophyll is ? [46th BPSC (Pre) Exam 2004]

  1. Ca
  2. Fe
  3. Mg
  4. S
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Q.17:- Root hairs absorb water when ?

  1. They respire rapidly
  2. Soil solution is isotonic
  3. Salt concentration of cell sap is high
  4. Salt concentration of soil is high

Q.18:- Which of the following plant shows chloroplast dimorphism ? [SSC (CGL) Exam 2015]

  1. Rice
  2. Wheat
  3. Sugar Beet
  4. Sugarcane

Q.19:- First step of photosynthesis is ?

  1. Activation of chlorophyll by sunlight
  2. Oxygen comes out from water
  3. Formation of carbohydrate
  4. Fixation of carbon dioxide

Q.20:- Which one of the following gas comes out during photosynthesis ? [RRB Exam 2003]

  1. Oxygen
  2. Carbon Dioxide
  3. Hydrogen
  4. Chlorine

Q.21:- Food is preserved at low temperature because ?

  1. Bacterial Attack is minimise
  2. For Easy Cooking
  3. For Easy Digestion
  4. All of the Above

Q.22:- Pyruvic Acid is formed at the end of ?

  1. Calvin Cycle
  2. Glycolysis
  3. Kreb Cycle
  4. Pentose
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Q.23:- Different steps in respiration are controlled by ?

  1. Auxins
  2. Sugar
  3. Enzymes
  4. Kinins

Q.24:- For the growth in length of plant which of the following is not essential ? [RRB Ranchi ASM / GG Exam 2005]

  1. Sodium
  2. Calcium
  3. Nitrogen
  4. Phosphorous

Q.25:- A plant leaf appears to be green because it ? [SCRA Exam 2012]

  1. Absorbs green light
  2. Reflects all but yellow and blue light
  3. Reflects green light
  4. Absorbs red and yellow light

 

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