Cell wall is outer most covering of cell. It is absent in Amoeba. Amoeba have cell membrane instead of the cell wall.
AIIMS-2000
Biological Classification
258703
Carriers of Entamoeba histolytica are
1 mosquito of genus, Anopheles
2 cattle
3 Musca domestica (housefly)
4 healthy human host
Explanation:
Carrier of Entamoeba histolytica are healthy human host and housefly. E. histolytica is monogenetic i.e. only one host is required for its complete life cycle. It undergoes reproduction and complete, its life cycle only in man.
UP CPMT-2007
Biological Classification
258704
How many young amoebae hatch out from a cyst of $E$ histolytica?
1 One
2 Two
3 Four
4 Six
Explanation:
Entamoeba histolytica is a protozoan protest and is transmitted trough food or water contaminated with cysts. It is pathogenic in nature. In Entamoeba, a mature cyst is called quadric-nucleate cyst which has four nuclei and two chromatid bodies. Only one young Amoeba with four nuclei hatches out from a cyst of Entamoeba histolytica.
UP CPMT-2007
Biological Classification
258705
Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction -
1 Trypanosoma
2 Paramecium
3 Euglena
4 Amoeba
Explanation:
Paramecium is unicellular and eukaryotic. They have two types of nuclei, macronucleus and micronucleus. The centre of all metabolic activities of the organism is macronucleus whereas micronucleus is a storage site for the genetic material of the organism.
Cell wall is outer most covering of cell. It is absent in Amoeba. Amoeba have cell membrane instead of the cell wall.
AIIMS-2000
Biological Classification
258703
Carriers of Entamoeba histolytica are
1 mosquito of genus, Anopheles
2 cattle
3 Musca domestica (housefly)
4 healthy human host
Explanation:
Carrier of Entamoeba histolytica are healthy human host and housefly. E. histolytica is monogenetic i.e. only one host is required for its complete life cycle. It undergoes reproduction and complete, its life cycle only in man.
UP CPMT-2007
Biological Classification
258704
How many young amoebae hatch out from a cyst of $E$ histolytica?
1 One
2 Two
3 Four
4 Six
Explanation:
Entamoeba histolytica is a protozoan protest and is transmitted trough food or water contaminated with cysts. It is pathogenic in nature. In Entamoeba, a mature cyst is called quadric-nucleate cyst which has four nuclei and two chromatid bodies. Only one young Amoeba with four nuclei hatches out from a cyst of Entamoeba histolytica.
UP CPMT-2007
Biological Classification
258705
Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction -
1 Trypanosoma
2 Paramecium
3 Euglena
4 Amoeba
Explanation:
Paramecium is unicellular and eukaryotic. They have two types of nuclei, macronucleus and micronucleus. The centre of all metabolic activities of the organism is macronucleus whereas micronucleus is a storage site for the genetic material of the organism.
Cell wall is outer most covering of cell. It is absent in Amoeba. Amoeba have cell membrane instead of the cell wall.
AIIMS-2000
Biological Classification
258703
Carriers of Entamoeba histolytica are
1 mosquito of genus, Anopheles
2 cattle
3 Musca domestica (housefly)
4 healthy human host
Explanation:
Carrier of Entamoeba histolytica are healthy human host and housefly. E. histolytica is monogenetic i.e. only one host is required for its complete life cycle. It undergoes reproduction and complete, its life cycle only in man.
UP CPMT-2007
Biological Classification
258704
How many young amoebae hatch out from a cyst of $E$ histolytica?
1 One
2 Two
3 Four
4 Six
Explanation:
Entamoeba histolytica is a protozoan protest and is transmitted trough food or water contaminated with cysts. It is pathogenic in nature. In Entamoeba, a mature cyst is called quadric-nucleate cyst which has four nuclei and two chromatid bodies. Only one young Amoeba with four nuclei hatches out from a cyst of Entamoeba histolytica.
UP CPMT-2007
Biological Classification
258705
Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction -
1 Trypanosoma
2 Paramecium
3 Euglena
4 Amoeba
Explanation:
Paramecium is unicellular and eukaryotic. They have two types of nuclei, macronucleus and micronucleus. The centre of all metabolic activities of the organism is macronucleus whereas micronucleus is a storage site for the genetic material of the organism.
Cell wall is outer most covering of cell. It is absent in Amoeba. Amoeba have cell membrane instead of the cell wall.
AIIMS-2000
Biological Classification
258703
Carriers of Entamoeba histolytica are
1 mosquito of genus, Anopheles
2 cattle
3 Musca domestica (housefly)
4 healthy human host
Explanation:
Carrier of Entamoeba histolytica are healthy human host and housefly. E. histolytica is monogenetic i.e. only one host is required for its complete life cycle. It undergoes reproduction and complete, its life cycle only in man.
UP CPMT-2007
Biological Classification
258704
How many young amoebae hatch out from a cyst of $E$ histolytica?
1 One
2 Two
3 Four
4 Six
Explanation:
Entamoeba histolytica is a protozoan protest and is transmitted trough food or water contaminated with cysts. It is pathogenic in nature. In Entamoeba, a mature cyst is called quadric-nucleate cyst which has four nuclei and two chromatid bodies. Only one young Amoeba with four nuclei hatches out from a cyst of Entamoeba histolytica.
UP CPMT-2007
Biological Classification
258705
Which of the following unicellular organism has a macronucleus for trophic function and one or more micronuclei for reproduction -
1 Trypanosoma
2 Paramecium
3 Euglena
4 Amoeba
Explanation:
Paramecium is unicellular and eukaryotic. They have two types of nuclei, macronucleus and micronucleus. The centre of all metabolic activities of the organism is macronucleus whereas micronucleus is a storage site for the genetic material of the organism.
