Bean seeds were planted and put on a sunny windowsill. As plants grew, their stems bent toward windo

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Strategies for Enhancement in Food Production

normal

Bean seeds were planted and put on a sunny windowsill. As the plants grew, their stems bent toward the window. This bending was most likely caused by an

unequal distribution of auxin in the stem.

unequal distribution of a neurotransmitter in the stem.

equal distribution of auxin in the stem.

equal distribution of a neurotransmitter in the stem.

(AIIMS-2009)

Solution

The plant hormone, auxin, is more distributed on the side away from the unilateral illumination causing cells to grow faster in the darkerside, which in turn, causes the plant to bend toward the light. If the distribution were equal, the plant would grow just upwards. Neuro-transmitters are chemicals secreted by multicellular animals and are used in transmitting impulses in the nervous system.

Standard 12

Biology

In mung bean, resistance to yellow mosaic, virus and powdery mildew were brought about by

normal

(NEET-2019)

In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.

The graph indicates

normal

(AIIMS-2005)

Essential oils are those which

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(AIIMS-2011)

The zoological name of common silk worm isor Silk is obtained from

normal

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called

normal

(NEET-2016)

Bean seeds were planted and put on a sunny windowsill. As the plants grew, their stems bent toward the window. This bending was most likely caused by an

Solution

Similar Questions

In mung bean, resistance to yellow mosaic, virus and powdery mildew were brought about by

In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph. The graph indicates

Essential oils are those which

The zoological name of common silk worm isor Silk is obtained from

A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called

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In an experiment freshly hatched larvae of an insect (Khapra beetle) were reared on a basal diet (complete diet without cholesterol) with increasing amounts of cholesterol. Results obtained are shown in the given graph.

The graph indicates