Multiple Choice Questions

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Placenta and pericarp are both edible portions in 

  • apple 

  • banana

  • tomato

  • tomato


C.

tomato

Tomato is botanically a fruit but it is considered as a vegetable for various purpose. It is rich in lycopene. Its edible parts are both placenta and pericarp. The placenta is the connecting tissue which supplies nutrition for embryo and pericarp is the remains of the ovular wall.

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Which of the following statements is correct?

  • The seed in grasses is not endospermic

  • Mango is a parthenocarpic fruit

  • A proteinaceous aleurone layer is present in maize grain

  • A proteinaceous aleurone layer is present in maize grain

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Deficiency symptoms of nitrogen and potassium are visible first in

  • senescent leaves

  • young leaves

  • roots

  • roots

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Which one of the following fungi contains hallucinogens?

  • Morchella esculenta

  • Amanita muscaria

  • Neurospora sp.

  • Neurospora sp.

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When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

  • vexillary

  • imbricate

  • twisted

  • twisted

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You are given a fairly old piece of dicot stem and a dicot root. Which of the following anatomical structure will you use to distinguish between the two?

  • Secondary xylem

  • Secondary phloem

  • Protoxylem

  • Protoxylem

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The osmotic expansion of a cell kept in water is chiefly regulated by

  • mitochondria

  • vacuoles

  • plastids 

  • plastids 

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In which one of the following processes CO2 is not released?

  • Aerobic respiration in plants

  • Aerobic respiration in animals

  • Alcoholic fermentation

  • Alcoholic fermentation

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Which one of the following is wrong about Chara?

  • upper oogonium and lower round antheridium

  • Globule and nucule present on the same plant

  • Upper antheridium and lower oogonium

  • Upper antheridium and lower oogonium

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Which one of the following shows isogamy with non-flagellated gametes?

  • Sargassum

  • Ectocarpus

  • Ulothrix

  • Ulothrix

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