In mosses, the sporophyte is attached to the gametophyte and derives nourishment from it. In other words, the sporophyte is parasitic on the gametophyte.
BIOXI03: PLANT KINGDOM
331951
In a moss the sporophyte
1 is partially parasitic on the gametophyte
2 Produces gametes that given rise to the gametophyte
3 Arises from a spore produced from the gametophyte
4 Manufactures food for itself, as well as for the gametophyte
Explanation:
In mosses, the sporophyte is not free-living. It is parasitic, attached to the photosynthetic gametophyte and derives nourishment from it.
AIPMT - 2006
BIOXI03: PLANT KINGDOM
331952
Statement A : The mosses have an elaborate mechanism of spore dispersal. Statement B : Sex organs antheridia and archegonia are produced on the branches of leafy shoots
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Sex organs are produced on the apex of leafy shoots.
BIOXI03: PLANT KINGDOM
331953
Read the Assertion and Reason carefully to mark the correct options given below: Assertion : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason : Protonema develops directly from spores produced in capsule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is not correct but Reason is correct
Explanation:
Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion. The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the protonema stage, which develops directly from a spore. Capsule of the sporophyte contains spore which gives rise to protonema.
In mosses, the sporophyte is attached to the gametophyte and derives nourishment from it. In other words, the sporophyte is parasitic on the gametophyte.
BIOXI03: PLANT KINGDOM
331951
In a moss the sporophyte
1 is partially parasitic on the gametophyte
2 Produces gametes that given rise to the gametophyte
3 Arises from a spore produced from the gametophyte
4 Manufactures food for itself, as well as for the gametophyte
Explanation:
In mosses, the sporophyte is not free-living. It is parasitic, attached to the photosynthetic gametophyte and derives nourishment from it.
AIPMT - 2006
BIOXI03: PLANT KINGDOM
331952
Statement A : The mosses have an elaborate mechanism of spore dispersal. Statement B : Sex organs antheridia and archegonia are produced on the branches of leafy shoots
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Sex organs are produced on the apex of leafy shoots.
BIOXI03: PLANT KINGDOM
331953
Read the Assertion and Reason carefully to mark the correct options given below: Assertion : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason : Protonema develops directly from spores produced in capsule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is not correct but Reason is correct
Explanation:
Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion. The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the protonema stage, which develops directly from a spore. Capsule of the sporophyte contains spore which gives rise to protonema.
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BIOXI03: PLANT KINGDOM
331950
In a moss, the sporophyte
1 Is parasitic on the gametophyte
2 Is autotrophic and non -dependent
3 Arises from a spore
4 Is saprotrophic in nature
Explanation:
In mosses, the sporophyte is attached to the gametophyte and derives nourishment from it. In other words, the sporophyte is parasitic on the gametophyte.
BIOXI03: PLANT KINGDOM
331951
In a moss the sporophyte
1 is partially parasitic on the gametophyte
2 Produces gametes that given rise to the gametophyte
3 Arises from a spore produced from the gametophyte
4 Manufactures food for itself, as well as for the gametophyte
Explanation:
In mosses, the sporophyte is not free-living. It is parasitic, attached to the photosynthetic gametophyte and derives nourishment from it.
AIPMT - 2006
BIOXI03: PLANT KINGDOM
331952
Statement A : The mosses have an elaborate mechanism of spore dispersal. Statement B : Sex organs antheridia and archegonia are produced on the branches of leafy shoots
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Sex organs are produced on the apex of leafy shoots.
BIOXI03: PLANT KINGDOM
331953
Read the Assertion and Reason carefully to mark the correct options given below: Assertion : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason : Protonema develops directly from spores produced in capsule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is not correct but Reason is correct
Explanation:
Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion. The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the protonema stage, which develops directly from a spore. Capsule of the sporophyte contains spore which gives rise to protonema.
In mosses, the sporophyte is attached to the gametophyte and derives nourishment from it. In other words, the sporophyte is parasitic on the gametophyte.
BIOXI03: PLANT KINGDOM
331951
In a moss the sporophyte
1 is partially parasitic on the gametophyte
2 Produces gametes that given rise to the gametophyte
3 Arises from a spore produced from the gametophyte
4 Manufactures food for itself, as well as for the gametophyte
Explanation:
In mosses, the sporophyte is not free-living. It is parasitic, attached to the photosynthetic gametophyte and derives nourishment from it.
AIPMT - 2006
BIOXI03: PLANT KINGDOM
331952
Statement A : The mosses have an elaborate mechanism of spore dispersal. Statement B : Sex organs antheridia and archegonia are produced on the branches of leafy shoots
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
Explanation:
Sex organs are produced on the apex of leafy shoots.
BIOXI03: PLANT KINGDOM
331953
Read the Assertion and Reason carefully to mark the correct options given below: Assertion : The first stage of gametophyte in the life cycle of moss is protonema stage. Reason : Protonema develops directly from spores produced in capsule.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is not correct but Reason is correct
Explanation:
Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion. The predominant stage of the life cycle of a moss is the gametophyte which consists of two stages. The first stage is the protonema stage, which develops directly from a spore. Capsule of the sporophyte contains spore which gives rise to protonema.