The movements of hair in Drosera is thigmonastic. It is the nastic (non-directional) response of a plant or fungus to touch or vibration. It is also known as seismonasty.
UP CPMT-2011
Biological Classification
258927
Which of the following plant cells is not surrounded by a cell wall?
1 Root hair cell
2 Stem hair cell
3 Gamete cell
4 Bacterial cell
Explanation:
Gamete cell is not surrounded by a cell wall. It is a sex cells of the flowering plants. It is haploid in nature. On the other hand, root hair cell, stem hair cell and bacterial cell, all possess a well defined cell wall.
JIPMER-2012
Biological Classification
258929
Which group is evolutionary modern?
1 Gymnosperms
2 Grasses
3 Pteridophytes
4 Algae
Explanation:
The evolutionary modern group is grasses (i.e. Angiosperms). The angiosperms are characterised by the presence of triploid endosperm, ovary and double fertilization.
Rajasthan PMT-2004
Biological Classification
258931
Aerenchyma provides :
1 Flexibility to plants
2 Mechanical strength to plants
3 Buoyancy to hydrophytic plants
4 Promoting nature of photosynthesis
Explanation:
Aerenchyma provides buoyancy to hydrophytic plants. It is the space of air channels in the leaves which provides buoyancy to hydrophytic plants and do not promote nature of photosynthesis, flexibility to plants or mechanical strength to plants.
The movements of hair in Drosera is thigmonastic. It is the nastic (non-directional) response of a plant or fungus to touch or vibration. It is also known as seismonasty.
UP CPMT-2011
Biological Classification
258927
Which of the following plant cells is not surrounded by a cell wall?
1 Root hair cell
2 Stem hair cell
3 Gamete cell
4 Bacterial cell
Explanation:
Gamete cell is not surrounded by a cell wall. It is a sex cells of the flowering plants. It is haploid in nature. On the other hand, root hair cell, stem hair cell and bacterial cell, all possess a well defined cell wall.
JIPMER-2012
Biological Classification
258929
Which group is evolutionary modern?
1 Gymnosperms
2 Grasses
3 Pteridophytes
4 Algae
Explanation:
The evolutionary modern group is grasses (i.e. Angiosperms). The angiosperms are characterised by the presence of triploid endosperm, ovary and double fertilization.
Rajasthan PMT-2004
Biological Classification
258931
Aerenchyma provides :
1 Flexibility to plants
2 Mechanical strength to plants
3 Buoyancy to hydrophytic plants
4 Promoting nature of photosynthesis
Explanation:
Aerenchyma provides buoyancy to hydrophytic plants. It is the space of air channels in the leaves which provides buoyancy to hydrophytic plants and do not promote nature of photosynthesis, flexibility to plants or mechanical strength to plants.
The movements of hair in Drosera is thigmonastic. It is the nastic (non-directional) response of a plant or fungus to touch or vibration. It is also known as seismonasty.
UP CPMT-2011
Biological Classification
258927
Which of the following plant cells is not surrounded by a cell wall?
1 Root hair cell
2 Stem hair cell
3 Gamete cell
4 Bacterial cell
Explanation:
Gamete cell is not surrounded by a cell wall. It is a sex cells of the flowering plants. It is haploid in nature. On the other hand, root hair cell, stem hair cell and bacterial cell, all possess a well defined cell wall.
JIPMER-2012
Biological Classification
258929
Which group is evolutionary modern?
1 Gymnosperms
2 Grasses
3 Pteridophytes
4 Algae
Explanation:
The evolutionary modern group is grasses (i.e. Angiosperms). The angiosperms are characterised by the presence of triploid endosperm, ovary and double fertilization.
Rajasthan PMT-2004
Biological Classification
258931
Aerenchyma provides :
1 Flexibility to plants
2 Mechanical strength to plants
3 Buoyancy to hydrophytic plants
4 Promoting nature of photosynthesis
Explanation:
Aerenchyma provides buoyancy to hydrophytic plants. It is the space of air channels in the leaves which provides buoyancy to hydrophytic plants and do not promote nature of photosynthesis, flexibility to plants or mechanical strength to plants.
The movements of hair in Drosera is thigmonastic. It is the nastic (non-directional) response of a plant or fungus to touch or vibration. It is also known as seismonasty.
UP CPMT-2011
Biological Classification
258927
Which of the following plant cells is not surrounded by a cell wall?
1 Root hair cell
2 Stem hair cell
3 Gamete cell
4 Bacterial cell
Explanation:
Gamete cell is not surrounded by a cell wall. It is a sex cells of the flowering plants. It is haploid in nature. On the other hand, root hair cell, stem hair cell and bacterial cell, all possess a well defined cell wall.
JIPMER-2012
Biological Classification
258929
Which group is evolutionary modern?
1 Gymnosperms
2 Grasses
3 Pteridophytes
4 Algae
Explanation:
The evolutionary modern group is grasses (i.e. Angiosperms). The angiosperms are characterised by the presence of triploid endosperm, ovary and double fertilization.
Rajasthan PMT-2004
Biological Classification
258931
Aerenchyma provides :
1 Flexibility to plants
2 Mechanical strength to plants
3 Buoyancy to hydrophytic plants
4 Promoting nature of photosynthesis
Explanation:
Aerenchyma provides buoyancy to hydrophytic plants. It is the space of air channels in the leaves which provides buoyancy to hydrophytic plants and do not promote nature of photosynthesis, flexibility to plants or mechanical strength to plants.
