Biology
Grade-7
Easy
Question
Seed germination is slowed, and ___________ development begins when the temperature falls below a moderate level.
- Seed germination
- Water
- Seed dormancy
- Fungus
- Embryo
Hint:
- Seed needs specific temperature range to germinate.
The correct answer is: Fungus
Fungus
- Seed germination is slowed and fungus development begins when temperature falls below a moderate level.
- Low temperature can damage seeds and Stop their germination by development of fungus in them .
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______________ aids in seed rupturing and transforms insoluble food into soluble form for transfer to the embryo.
- Water enters in seed cells through imbibition.
- It causes rupturing of seed coat by making it swollen and soft .
______________ aids in seed rupturing and transforms insoluble food into soluble form for transfer to the embryo.
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- Water enters in seed cells through imbibition.
- It causes rupturing of seed coat by making it swollen and soft .
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During ________________, the water and gas-resistant seed coat inhibits water intake and oxygen exchange.
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- A seed doesn't germinate untill it doesn't get the suitable conditions for germination.
During ________________, the water and gas-resistant seed coat inhibits water intake and oxygen exchange.
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- During seed dormancy seed coat prevents it from the harsh conditions.
- A seed doesn't germinate untill it doesn't get the suitable conditions for germination.
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___________________ is an evolutionary adaptation or a situation in which seeds are unable to germinate even in ideal conditions.
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___________________ is an evolutionary adaptation or a situation in which seeds are unable to germinate even in ideal conditions.
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- The phase in which a seed can't germinate is known as seed dormancy.
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Plant growth regulators are found in some seeds, and they prevent __________.
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Some seeds do not need light for germination.
- Some seeds don't need light for germination as every seed has it's own suitable conditions to germinate for temprature,light and water.
Some seeds do not need light for germination.
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- Some seeds don't need light for germination as every seed has it's own suitable conditions to germinate for temprature,light and water.
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If there is enough temperature but no water for the seed, then still the seed will be able to germinate
- If there is only one condition is not applicable, the seed will not germinate.
If there is enough temperature but no water for the seed, then still the seed will be able to germinate
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- If there is only one condition is not applicable, the seed will not germinate.
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Germination can sometimes come to a halt when the temperature rises above a certain point.
- A seed can't germinate in harsh conditions.
- A specific range of temperature should be there for seed germination.
Germination can sometimes come to a halt when the temperature rises above a certain point.
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- A seed can't germinate in harsh conditions.
- A specific range of temperature should be there for seed germination.
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Pick the odd one out.
- Plumule makes shoot system.
- Leaves are also a part of shoots.
Pick the odd one out.
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- Plumule makes shoot system.
- Leaves are also a part of shoots.
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Match the following:
- Temperature a. Hydration
- Light b. 25 to 30 ℃
- Oxygen c. Sunshine
- Water d. Aerobic respiration
- Water, oxygen, temperature and light , all the four things are important in germination of seed.
Match the following:
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- Water, oxygen, temperature and light , all the four things are important in germination of seed.
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After activation of enzymes in a seed, the metabolic phase begins; this phase I called ___________.
- After imbibition activation of enzymes starts and after the activation lag phase is started.
After activation of enzymes in a seed, the metabolic phase begins; this phase I called ___________.
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- 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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Pick the odd one out.
- 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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Pick the odd one out.
- 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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Pick the odd one out.
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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 _________________.
- Seeds go into dormant state after development untill they don't get appropriate and suitable conditions for germination.
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.
