Biology
Grade-7
Easy
Question
Match the following:
- Temperature a. Hydration
- Light b. 25 to 30 ℃
- Oxygen c. Sunshine
- Water d. Aerobic respiration
- (I) - a, (II) - c, (III) - b, (IV) – d
- (I) - d, (II) - c, (III) - b, (IV) - a
- (I) - b, (II) - c, (III) - d, (IV) - a
- (I) - c, (II) - a, (III) - d, (IV) – b
Hint:
- So many conditions and substances are required for germination of seed.
The correct answer is: (I) - b, (II) - c, (III) - d, (IV) - a
Option c
- As water is required for hydration
- Oxygen is involved in anaerobic respiration
- Temperature is shown in degree Celsius and
- Light is provided by sun as sunshine.
- 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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- 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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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.
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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 ____________.
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Many seeds are not able to germinate unless they are exposed to ____________.
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The embryo grows rapidly, rupturing the covering layers and allowing the __________ to emerge.
- Radicle is the part of an embryo which forms root system in seed germination.
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.
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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 __________.
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