Biology
Grade-7
Easy
Question
After activation of enzymes in a seed, the metabolic phase begins; this phase I called ___________.
- Imbibition
- Lag phase
- Log phase
- Last phase
Hint:
- After activation of enzymes growth is started.
The correct answer is: Lag phase
Lag phase
- After activation of enzymes a phase starts and the phase is called lag phase.
- After imbibition activation of enzymes starts and after the activation lag phase is started.
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The seed cell becomes metabolically active, elongates, and divides in the last stage of seed germination, giving rise to the ____________.
- Cells grow , elongate and then decide in last stage of seed germination to give rise seedling.
The seed cell becomes metabolically active, elongates, and divides in the last stage of seed germination, giving rise to the ____________.
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- Cells grow , elongate and then decide in last stage of seed germination to give rise seedling.
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- Minerals are required for growth of plant but the other three options are necessary elements for seed germination.
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- Minerals are required for growth of plant but the other three options are necessary elements for seed germination.
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- Radicle makes root system in seed germination.
- Plumule forms shoot system in seed germination.
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- Radicle makes root system in seed germination.
- Plumule forms shoot system in seed germination.
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- The odd option is 'c' because all the other options are showing seed germination while it is showing germination of leaves on an old plant.
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- The odd option is 'c' because all the other options are showing seed germination while it is showing germination of leaves on an old plant.
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Undeveloped or immature embryo seeds do not _________________.
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Undeveloped or immature embryo seeds do not _________________.
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- Seeds go into dormant state after development untill they don't get appropriate and suitable conditions for germination.
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Undeveloped or immature embryo seeds do not _________________.
- Seed of germination is resulted in plant formation.
Undeveloped or immature embryo seeds do not _________________.
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- Seed of germination is resulted in plant formation.
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When the temperature falls below a moderate level, seed germination speed ___________.
- Seed can't germinate untill it get appropriate and suitable conditions.
When the temperature falls below a moderate level, seed germination speed ___________.
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- Seed can't germinate untill it get appropriate and suitable conditions.
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Water helps in softening the _______________.
- Water is absorbed by seeds through imbibition so that the seed coat can be soft.
Water helps in softening the _______________.
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- Water is absorbed by seeds through imbibition so that the seed coat can be soft.
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The seed absorbing water causing swelling and softening of the seed coat at an ideal temperature is called _______________.
- Imbibition causes swelling and softening of seed coat.
The seed absorbing water causing swelling and softening of the seed coat at an ideal temperature is called _______________.
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- Imbibition causes swelling and softening of seed coat.
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Many seeds are not able to germinate unless they are exposed to ____________.
- Some seeds need sunlight to germinate as they need high temperature.
- Seeds can't germinate untill they don't get appropriate conditions.
Many seeds are not able to germinate unless they are exposed to ____________.
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- Some seeds need sunlight to germinate as they need high temperature.
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The embryo grows rapidly, rupturing the covering layers and allowing the __________ to emerge.
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The embryo grows rapidly, rupturing the covering layers and allowing the __________ to emerge.
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- Radicle is the part of an embryo which forms root system in seed germination.
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______________ forms the shoot system in seed germination.
- Plumule is the shoot making part in seed germination.
______________ forms the shoot system in seed germination.
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- Plumule is the shoot making part in seed germination.
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________________ is the basic process by which various plant species develop from a single seed into a plant.
- Germination of seed is resulted into formation of a plant.
________________ is the basic process by which various plant species develop from a single seed into a plant.
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- Germination of seed is resulted into formation of a plant.
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If the soil is loose and has more holes, then it is said to hold a good amount of __________.
- Ploughing is done before sowing seeds so that the soil can hold more amount of oxygen.
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- Ploughing is done before sowing seeds so that the soil can hold more amount of oxygen.
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_______________ aids as the dissolved oxygen for the growing embryo.
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_______________ aids as the dissolved oxygen for the growing embryo.
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- As water contains oxygen molecule along with hydrogen it can provide oxygen to an embryo.
