Which of the following are the important floral rewards to the animal pollinators ? (a) Floral fragrance and calcium crystals (b) Protein pellicle and stigmatic exudates (c) Colour and large size of flower (d) Nectar and pollen grains

Which of the following are the important floral
rewards to the animal pollinators ?
(a) Floral fragrance and calcium crystals
(b) Protein pellicle and stigmatic exudates
(c) Colour and large size of flower
(d) Nectar and pollen grains
by

1 Answer

Answer :

(d) Nectar and pollen grains
by

Related questions

Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) Some reptiles have also been reported as pollinators in some plant species. (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style. (d) Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Description : Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) ... Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Last Answer : (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.

Wind pollinated flowers are (a) small, brightly coloured, producing large number of pollen grains (b) small, producing large number of dry pollen grains (c) large producing abundant nectar and pollen (d) small, producing nectar and dry pollen

Description : Wind pollinated flowers are (a) small, brightly coloured, producing large number of pollen grains (b) small, producing large number of dry pollen grains (c) large producing abundant nectar and pollen (d) small, producing nectar and dry pollen

Last Answer : (b) small, producing large number of dry pollen grains

The floral part that receives pollen grains during pollination is - (1 ovary (2) style (3) stigma (4) ovules

Description : The floral part that receives pollen grains during pollination is - (1 ovary (2) style (3) stigma (4) ovules

Last Answer : (3) stigma Explanation: The stigma is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. The stigma receives pollen at pollination and it is on the stigma that the pollen grain germinates. The style connects the stigma to the ovary.

The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Description : The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Last Answer : (3) Anther Explanation: The anther contains microsporangia. Each microsporangium contains pollen mother cells. These undergo meiosis, and produce pollen grains, which contain the male gametes (sperm). The pollen is released by the opening of the anther.

The floral part that produces pollen grains is - (1 ) Sepal (2) Petal (3) Anther (4) Ovary

Description : The floral part that produces pollen grains is - (1 ) Sepal (2) Petal (3) Anther (4) Ovary

Last Answer : (3) Anther Explanation: Anther is the apical portion of a stamen, which produces the microspores or pollen grains. An anther normally comprises four pollen sacs arranged in two groups or lobes joined by the connective tissue to the filament

The floral part that receives pollen-grains during pollination is (1) ovary (2) style (3) stigma (4) ovules

Description : The floral part that receives pollen-grains during pollination is (1) ovary (2) style (3) stigma (4) ovules

Last Answer : stigma

The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Description : The floral part that produces pollen grains is (1) Sepal (2) Petal (3) Anther (4) Ovary

Last Answer : Anther

Calculus attaches to teeth surfaces by: A. Acquired pellicle B. Interlocking to the crystals of the tooth C. Penetrated into enamel and dentine D. Mechanical interlocking E. All of the above

Description : Calculus attaches to teeth surfaces by: A. Acquired pellicle B. Interlocking to the crystals of the tooth C. Penetrated into enamel and dentine D. Mechanical interlocking E. All of the above

Last Answer : E. All of the above

Major cause of mango fruit drop is ___ A) Lack of pollination B) Low stigmatic receptivity C) Defective perfect flower D) All of the above

Description : Major cause of mango fruit drop is ___ A) Lack of pollination B) Low stigmatic receptivity C) Defective perfect flower D) All of the above

Last Answer : D) All of the above

When pollen grains from flower of one plant transferred to receptive stigmas of flowers of another plant

Description : When pollen grains from flower of one plant transferred to receptive stigmas of flowers of another plant

Last Answer : Ans. Cross pollination/Allogamy

Consider the following statements about pollination. 1. Transfer of pollen grains from the anther to ovules in the same flower or a different f lower is called pollination. 2. The pollination by wind is called anemophily. 3. Pollination is a prerequisite for seed and fruit development in all flowering plants. 4. Seeds may develop in some water ferns without pollination. Which of the above statement/s is/are correct? (a) 1 and 3 (b) 1, 2 and 4 (c) Only 2 (d) 1, 2, 3 and 4

Description : Consider the following statements about pollination. 1. Transfer of pollen grains from the anther to ovules in the same flower or a different f lower is called pollination. 2. The pollination by wind is called anemophily. 3. Pollination is a ... 1 and 3 (b) 1, 2 and 4 (c) Only 2 (d) 1, 2, 3 and 4

Last Answer : Ans:(c)

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called (a) xenogamy (b) geitonogamy (c) karyogamy (d) autogamy.

Description : Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called (a) xenogamy (b) geitonogamy (c) karyogamy (d) autogamy.

Last Answer : (b) geitonogamy

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:a) Autogamyb) Xenogamyc) Geitonogamyd) Karyogamy

Description : Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:a) Autogamyb) Xenogamyc) Geitonogamyd) Karyogamy

Last Answer : c) Geitonogamy

The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as

Description : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as

Last Answer : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as – Intra-ovarian pollination

Which of the following nutrient is involved in reproduction in plants and germination of pollen grains ? a. Boron b. Calcium c. Potassium d. Sulphur

Description : Which of the following nutrient is involved in reproduction in plants and germination of pollen grains ? a. Boron b. Calcium c. Potassium d. Sulphur

Last Answer : a. Boron

Cloud droplets unite most easily to form raindrops in clouds containing which of the following substances? w) ozone x) plant pollen y) carbon tetrachloride z) large salt crystals

Description : Cloud droplets unite most easily to form raindrops in clouds containing which of the following substances? w) ozone x) plant pollen y) carbon tetrachloride z) large salt crystals

Last Answer : ANSWER: Z -- LARGE SALT CRYSTALS

Function of filiform apparatus is to (a) recognise the suitable pollen at stigma (b) stimulate division of generative cell (c) produce nectar (d) guide the entry of pollen tube.

Description : Function of filiform apparatus is to (a) recognise the suitable pollen at stigma (b) stimulate division of generative cell (c) produce nectar (d) guide the entry of pollen tube.

Last Answer : (d) guide the entry of pollen tube.

Function of filiform apparatus is toa)Guide the entry of pollen tubeb)Recognize the suitable pollen at stigmac)Stimulate division of generative celld)Produce nectar

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Last Answer : )Guide the entry of pollen tube

Which of the following nourishes a developing seed? a) pollen tube b) nectar c) endosperm d) zygote

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How do flower pollinators occur ?

Description : How do flower pollinators occur ?

Last Answer : Two ways. 1. Self-pollination. 2. After pollination.

What parts of a flower attract pollinators?

Description : What parts of a flower attract pollinators?

Last Answer : petals

The pollen grains of flowers pollinated by insects are : (1) smooth and dry (2) rough and sticky (3) rough and dry (4) large and, showy

Description : The pollen grains of flowers pollinated by insects are : (1) smooth and dry (2) rough and sticky (3) rough and dry (4) large and, showy

Last Answer : (2) rough and sticky Explanation: Pollen grains are large sticky and heavy, usually with rough surfaces so that they can readily cling onto the insects bodies. They are sticky so that pollen grains settling on them are not easily displaced.

The pollen grains of flowers pollinated by insects are : (1) smooth and dry (2) rough and sticky (3) rough and dry (4) large and showy

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Last Answer : rough and sticky

Male (Anopheles) mosquito feeds on - (1) Blood of man (2) Nectar of flower (3) Blood of Culex (4) Blood of Leech

Description : Male (Anopheles) mosquito feeds on - (1) Blood of man (2) Nectar of flower (3) Blood of Culex (4) Blood of Leech

Last Answer : (2) Nectar of flower Explanation: Typically, both male and female mosquitoes feed on nectar and plant juices, but in many species the mouthparts of the females are adapted for piercing the skin of ... can produce eggs, whereas in many other species, she can produce more eggs after a blood meal.

Male (Anopheles) mosquito feeds on : (1) Blood of man (2) Nectar of flower (3) Blood of Culex (4) Blood of Leech

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Last Answer : Nectar of flower

Which shrub has white colour flowers with fragrance a. b. Hibiscus rosa chinensis c. Thevetia merifolia d. Jasminum sambac

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Last Answer : Jasminum sambac

Explain "Shimal Animal Pollen Flower" ?

Description : Explain "Shimal Animal Pollen Flower" ?

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When pollen grains are transferred to the stigma? -Biology

Description : When pollen grains are transferred to the stigma? -Biology

Last Answer : answer:

When pollen grains are transferred to the stigma? -Biology

Description : When pollen grains are transferred to the stigma? -Biology

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What are pollen grains? -Biology

Description : What are pollen grains? -Biology

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Where are pollen grains produced? -Biology

Description : Where are pollen grains produced? -Biology

Last Answer : answer:

What do pollen grains contain? -Biology

Description : What do pollen grains contain? -Biology

Last Answer : answer:

What are pollen grains? -Biology

Description : What are pollen grains? -Biology

Last Answer : answer:

What do pollen grains contain? -Biology

Description : What do pollen grains contain? -Biology

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Where are pollen grains produced? -Biology

Description : Where are pollen grains produced? -Biology

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Why were at least twenty pollen grains needed for each sugar concentration?

Description : Why were at least twenty pollen grains needed for each sugar concentration?

Last Answer : Anything less and the sample size would be too small for reliable data

How are pollen grains adapted to help plant pollinations?

Description : How are pollen grains adapted to help plant pollinations?

Last Answer : Some pollen grains have a spiky surface to help them sticky tothe bodies of insects.

What are the two ways in which pollen grains are scattered?

Description : What are the two ways in which pollen grains are scattered?

Last Answer : Pollen is scattered by the wind or by animals.

When pollen grains from an another falls on receptive stigma of the same flowers

Description : When pollen grains from an another falls on receptive stigma of the same flowers

Last Answer : Ans. Self pollination

In dicots the pollen-grains possess : (1) two germ pores (2) three germ pores (3) four germ pores (4) one germ pore

Description : In dicots the pollen-grains possess : (1) two germ pores (2) three germ pores (3) four germ pores (4) one germ pore

Last Answer : (2) three germ pores Explanation: Pollen grains of monocots have one opening, while pollen grains of dicots have three openings. Pollengrains can be monocolpate (having one germ pore called germinal furrow e.g., monocots), bicolpate (2 germ pores) and tricolpate (3 germ pores e.g., dicots).

Pollen grains in plants are produced in?

Description : Pollen grains in plants are produced in?

Last Answer : flower

The transfer of pollen grains from the an- ther to the stigma is called?

Description : The transfer of pollen grains from the an- ther to the stigma is called?

Last Answer : pollination

Which ones produce androgenic haploids in anther cultures? (a) Anther wall (b) Tapetal layer of anther wall (c) Connective tissue (d) Young pollen grains

Description : Which ones produce androgenic haploids in anther cultures? (a) Anther wall (b) Tapetal layer of anther wall (c) Connective tissue (d) Young pollen grains

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In tissue culture medium, the embryoids formed from pollen grains is due to (a) cellular totipotency (b) organogenesis (c) double fertilization (d) test tube culture.

Description : In tissue culture medium, the embryoids formed from pollen grains is due to (a) cellular totipotency (b) organogenesis (c) double fertilization (d) test tube culture.

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Which one of the following statements is wrong? (a) When pollen is shed at two-celled stage, double fertilisation does not take place. (b) Vegetative cell is larger than generative cell. (c) Pollen grains in some plants remain viable for months. (d) Intine is made up of cellulose and pectin.

Description : Which one of the following statements is wrong? (a) When pollen is shed at two-celled stage, double fertilisation does not take place. (b) Vegetative cell is larger than generative cell. (c) Pollen grains in some plants remain viable for months. (d) Intine is made up of cellulose and pectin.

Last Answer : (a) When pollen is shed at two-celled stage, double fertilisation does not take place.

In an angiosperm, how many microspore mother cells are required to produce 100 pollen grains? (a) 75 (b) 100 (c) 25 (d) 50

Description : In an angiosperm, how many microspore mother cells are required to produce 100 pollen grains? (a) 75 (b) 100 (c) 25 (d) 50

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If there are 4 cells in anthers, what will be the number of pollen grains? (a) 16 (b) 12 (c) 8 (d) 4

Description : If there are 4 cells in anthers, what will be the number of pollen grains? (a) 16 (b) 12 (c) 8 (d) 4

Last Answer : a) 16

In grasses what happens in microspore mother cell for the formation of mature pollen grains? (a) One meiotic and two mitotic divisions (b) One meiotic and one mitotic divisions (c) One meiotic division (d) One mitotic division

Description : In grasses what happens in microspore mother cell for the formation of mature pollen grains? (a) One meiotic and two mitotic divisions (b) One meiotic and one mitotic divisions (c) One meiotic division (d) One mitotic division

Last Answer : (b) One meiotic and one mitotic divisions

Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected from flowers. (c) Pollen grains are rich in nutrients and they are used in the form of tablets and syrups. (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Description : Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected ... . (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Last Answer : (b) Honey is made by bees by digesting pollen collected from flowers.