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MHT-CET Plant Growth and Mineral Nutrition — practice questions

Explore 87 free Plant Growth and Mineral Nutrition questions in MHT-CET Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Plant Growth and Mineral Nutrition questions and exercises with answers

Showing questions 1–30 of 87.

Growth in vascular plants is restricted to regions called what?Read the answer and worked solution →Which one is a type of meristem based on its location?Read the answer and worked solution →Which plant organs show indefinite (indeterminate) growth?Read the answer and worked solution →Growth is determinate in which of these plant organs?Read the answer and worked solution →How many phases of growth correspond to division, enlargement and differentiation?Read the answer and worked solution →Cell enlargement corresponds to which phase of growth?Read the answer and worked solution →Cell maturation and differentiation fall in which phase of growth?Read the answer and worked solution →Which feature describes meristematic cells?Read the answer and worked solution →What makes cells enlarge in the phase of elongation?Read the answer and worked solution →The optimum temperature range for plant growth is about?Read the answer and worked solution →Which instrument gives precise measurement of linear growth of a shoot?Read the answer and worked solution →In arithmetic growth, the rate of growth is?Read the answer and worked solution →Arithmetic growth gives which curve when plotted against time?Read the answer and worked solution →In geometric growth, what do both daughter cells do after mitosis?Read the answer and worked solution →In W1 = Wo e^rt, what is the meaning of e?Read the answer and worked solution →Absolute growth rate is the change in cell number (dn) over what?Read the answer and worked solution →A leaf of 20 cm2 grows by 4 cm2 a day. What is its RGR per day?Read the answer and worked solution →Plotting growth rate through all three growth phases gives which curve?Read the answer and worked solution →Which growth type produces an exponential curve?Read the answer and worked solution →Which of these is a growth inhibitor in plants?Read the answer and worked solution →Who first used the term hormone, in animal physiology?Read the answer and worked solution →Who showed in 1919 that an off-centre coleoptile tip causes bending in dark?Read the answer and worked solution →Who isolated natural auxin from Avena coleoptile tips in 1928?Read the answer and worked solution →Went collected the diffusible substance from coleoptile tips in what?Read the answer and worked solution →From what source was auxin isolated by Kogl and Smit in 1931?Read the answer and worked solution →Which is the most common natural auxin?Read the answer and worked solution →Which amino acid is the primary precursor of IAA in plants?Read the answer and worked solution →Auxin shows which type of transport in the stem?Read the answer and worked solution →Which of these is a synthetic auxin?Read the answer and worked solution →Growing apical bud inhibiting lateral buds is called?Read the answer and worked solution →

Worked practice questions

Growth in vascular plants is restricted to regions called what?

  1. Meristematic tissues
  2. Guard cell clusters
  3. Vascular bundles
  4. Cork lenticel pores
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Correct answer: A. Meristematic tissues

New cells are produced continuously only in meristems, so plant growth is localised there.

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Which one is a type of meristem based on its location?

  1. Collenchymatous
  2. Parenchymatous
  3. Sclerenchymatous
  4. Intercalary
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Correct answer: D. Intercalary

Meristems are grouped by location into apical, intercalary and lateral types.

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Which plant organs show indefinite (indeterminate) growth?

  1. Fruits and leaves
  2. Petals and sepals
  3. Leaves and flowers
  4. Root and stem
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Correct answer: D. Root and stem

Roots and stems keep growing throughout life, while leaves, flowers and fruits stop at a fixed size.

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