Biology, asked by rinkujaiswalmdp, 3 months ago

L Give reasons for the following.
11. Yeast cells form a long chain.
2. Insect-pollinated flowers are brightly coloured
or scented.
3. Wind-pollinated flowers produce large amount
of pollen grains.
4. Spores are covered with a hard covering.​

Answers

Answered by minakshi987
0

Answer:

Because the daughter cells do not fall off during reproduction and so a long continuous chain is formed called Psuedohyphae. 2- To attract insect to feed upon and for pollination they are bright, coloured and scented.

In order to attract insects, insect-pollinated flowers are often brightly coloured, have scent and nectar so that the insect comes into the flower and collects or leaves pollen.

Pollen grains of wind-pollinated flowers are produced in large quantities to make sure that at least some pollen grains reach the stigmas of other flowers and successful pollination takes place as many pollen grains are wasted. These pollen grains are light and hence are easily transferred to other flowers.

Each spore is covered by a hard protective thick wall to enable them survive under unfavourable conditions like lack of moisture, lack of nutrients and extreme temperature. ... The coat enables them to survive under unfavourable conditions like lack of moisture, lack of nutrients and extreme temperature.

Answered by virat293
0

Answer:

  • Yeast cells form a long chain.

In the presence of an abundant food source, huge populations of yeast cells gather. The cells often appear as long chains with newly formed cells still attached to their parent cells, due to the short budding time of two hours.

  • Insect-pollinated flowers are brightly colored  or scented.

Insect pollinated flowes are a cause of pollination when colour of flowers and their pleasant smell attract insects and insects come on flowers and take away pollen to another flower.

  • Wind-pollinated flowers produce large amount  of pollen grains.

So large number of flowers can be pollinated.

  • Spores are covered with a hard covering.​

The spores are protected by hard protective coat because the environment the spores might land, is not that very friendly. And the function of that covering is to protect the spore.

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