258664
What is the main function of filiform apparatus present at the micropylar part of the ovule ?
1 It prevents the entry of more than one pollen tube into the embryo sac.
2 It brings about opening of the pollen tube.
3 It helps in the entry of pollen tube into an antipodal cell.
4 It helps the pollen tube to enter the ovule through chalazal end.
5 It guides the entry of pollen tube into a synergid and discharge the male gametes.
Explanation:
E The synergid cell wall forming an extremely thick structure at the micropylar end is called the filiform apparatus. It guide the entry of pollen tube into a synergid and discharge the male gamete. The function of filiform apparatus is to guide entry of pollen tube and release of sperm cells.
Kerala PMT-2013
Biological Classification
258667
Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom
1 Animalia
2 Monera
3 Protista
4 Fungi
Explanation:
Chrysophytes, Euglenoids, dinoflagellates and slime moulds are included in the Kingdom Protista. This kingdom includes all single celled eukaryotes. R.H. Whittaker proposed a five kingdom classification in 1969, in which Protista is a kingdom which comprises organism which are unicellular but eukaryotic organism. These members may be autotrophic or heterotrophic. Primarily these are aquatic.
NEET-2016 Phase-I
Biological Classification
258675
Nosema bombycis which causes pebrine in silk worms is a
1 Virus
2 Bacterium
3 Protozoan
4 Fungus
Explanation:
Nosema bombycis is a protozoan that causes pebrine disease in silk worms and causes great economic loss. In this infections small brown spot cover the body of silkworm. - Louis Pasteur identified the spores of Nosema as the disease agent in 1865 and suggested control by destruction of infected silkworm colonies and improved sanitation.
Karnataka CET-2009
Biological Classification
258678
Slime-mould belongs to
1 Kingdom Protista
2 Kingdom Monera
3 Kingdom Fungi
4 Kingdom Plantae
Explanation:
Slime moulds are the saprophytic unicellular eukaryotes. As they are unicellular eukaryotes, they belong to the kingdom Protista. - Slime mould have both fungal and animal characteristics. - Some Protista use appendages, hair-like cilia (paramecium), pseudopodia (Amoeba) or whip-like flagella (Euglena) for locomotion.
258664
What is the main function of filiform apparatus present at the micropylar part of the ovule ?
1 It prevents the entry of more than one pollen tube into the embryo sac.
2 It brings about opening of the pollen tube.
3 It helps in the entry of pollen tube into an antipodal cell.
4 It helps the pollen tube to enter the ovule through chalazal end.
5 It guides the entry of pollen tube into a synergid and discharge the male gametes.
Explanation:
E The synergid cell wall forming an extremely thick structure at the micropylar end is called the filiform apparatus. It guide the entry of pollen tube into a synergid and discharge the male gamete. The function of filiform apparatus is to guide entry of pollen tube and release of sperm cells.
Kerala PMT-2013
Biological Classification
258667
Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom
1 Animalia
2 Monera
3 Protista
4 Fungi
Explanation:
Chrysophytes, Euglenoids, dinoflagellates and slime moulds are included in the Kingdom Protista. This kingdom includes all single celled eukaryotes. R.H. Whittaker proposed a five kingdom classification in 1969, in which Protista is a kingdom which comprises organism which are unicellular but eukaryotic organism. These members may be autotrophic or heterotrophic. Primarily these are aquatic.
NEET-2016 Phase-I
Biological Classification
258675
Nosema bombycis which causes pebrine in silk worms is a
1 Virus
2 Bacterium
3 Protozoan
4 Fungus
Explanation:
Nosema bombycis is a protozoan that causes pebrine disease in silk worms and causes great economic loss. In this infections small brown spot cover the body of silkworm. - Louis Pasteur identified the spores of Nosema as the disease agent in 1865 and suggested control by destruction of infected silkworm colonies and improved sanitation.
Karnataka CET-2009
Biological Classification
258678
Slime-mould belongs to
1 Kingdom Protista
2 Kingdom Monera
3 Kingdom Fungi
4 Kingdom Plantae
Explanation:
Slime moulds are the saprophytic unicellular eukaryotes. As they are unicellular eukaryotes, they belong to the kingdom Protista. - Slime mould have both fungal and animal characteristics. - Some Protista use appendages, hair-like cilia (paramecium), pseudopodia (Amoeba) or whip-like flagella (Euglena) for locomotion.
258664
What is the main function of filiform apparatus present at the micropylar part of the ovule ?
1 It prevents the entry of more than one pollen tube into the embryo sac.
2 It brings about opening of the pollen tube.
3 It helps in the entry of pollen tube into an antipodal cell.
4 It helps the pollen tube to enter the ovule through chalazal end.
5 It guides the entry of pollen tube into a synergid and discharge the male gametes.
Explanation:
E The synergid cell wall forming an extremely thick structure at the micropylar end is called the filiform apparatus. It guide the entry of pollen tube into a synergid and discharge the male gamete. The function of filiform apparatus is to guide entry of pollen tube and release of sperm cells.
Kerala PMT-2013
Biological Classification
258667
Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom
1 Animalia
2 Monera
3 Protista
4 Fungi
Explanation:
Chrysophytes, Euglenoids, dinoflagellates and slime moulds are included in the Kingdom Protista. This kingdom includes all single celled eukaryotes. R.H. Whittaker proposed a five kingdom classification in 1969, in which Protista is a kingdom which comprises organism which are unicellular but eukaryotic organism. These members may be autotrophic or heterotrophic. Primarily these are aquatic.
NEET-2016 Phase-I
Biological Classification
258675
Nosema bombycis which causes pebrine in silk worms is a
1 Virus
2 Bacterium
3 Protozoan
4 Fungus
Explanation:
Nosema bombycis is a protozoan that causes pebrine disease in silk worms and causes great economic loss. In this infections small brown spot cover the body of silkworm. - Louis Pasteur identified the spores of Nosema as the disease agent in 1865 and suggested control by destruction of infected silkworm colonies and improved sanitation.
Karnataka CET-2009
Biological Classification
258678
Slime-mould belongs to
1 Kingdom Protista
2 Kingdom Monera
3 Kingdom Fungi
4 Kingdom Plantae
Explanation:
Slime moulds are the saprophytic unicellular eukaryotes. As they are unicellular eukaryotes, they belong to the kingdom Protista. - Slime mould have both fungal and animal characteristics. - Some Protista use appendages, hair-like cilia (paramecium), pseudopodia (Amoeba) or whip-like flagella (Euglena) for locomotion.
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Biological Classification
258664
What is the main function of filiform apparatus present at the micropylar part of the ovule ?
1 It prevents the entry of more than one pollen tube into the embryo sac.
2 It brings about opening of the pollen tube.
3 It helps in the entry of pollen tube into an antipodal cell.
4 It helps the pollen tube to enter the ovule through chalazal end.
5 It guides the entry of pollen tube into a synergid and discharge the male gametes.
Explanation:
E The synergid cell wall forming an extremely thick structure at the micropylar end is called the filiform apparatus. It guide the entry of pollen tube into a synergid and discharge the male gamete. The function of filiform apparatus is to guide entry of pollen tube and release of sperm cells.
Kerala PMT-2013
Biological Classification
258667
Chrysophytes, Euglenoids, Dinoflagellates and slime moulds are included in the kingdom
1 Animalia
2 Monera
3 Protista
4 Fungi
Explanation:
Chrysophytes, Euglenoids, dinoflagellates and slime moulds are included in the Kingdom Protista. This kingdom includes all single celled eukaryotes. R.H. Whittaker proposed a five kingdom classification in 1969, in which Protista is a kingdom which comprises organism which are unicellular but eukaryotic organism. These members may be autotrophic or heterotrophic. Primarily these are aquatic.
NEET-2016 Phase-I
Biological Classification
258675
Nosema bombycis which causes pebrine in silk worms is a
1 Virus
2 Bacterium
3 Protozoan
4 Fungus
Explanation:
Nosema bombycis is a protozoan that causes pebrine disease in silk worms and causes great economic loss. In this infections small brown spot cover the body of silkworm. - Louis Pasteur identified the spores of Nosema as the disease agent in 1865 and suggested control by destruction of infected silkworm colonies and improved sanitation.
Karnataka CET-2009
Biological Classification
258678
Slime-mould belongs to
1 Kingdom Protista
2 Kingdom Monera
3 Kingdom Fungi
4 Kingdom Plantae
Explanation:
Slime moulds are the saprophytic unicellular eukaryotes. As they are unicellular eukaryotes, they belong to the kingdom Protista. - Slime mould have both fungal and animal characteristics. - Some Protista use appendages, hair-like cilia (paramecium), pseudopodia (Amoeba) or whip-like flagella (Euglena) for locomotion.
