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Questions and Answers
Which part of the plant is defined as the descending part of the plant axis?
Which part of the plant is defined as the descending part of the plant axis?
- Stem
- Flower
- Root (correct)
- Leaf
What type of tropism does the root exhibit?
What type of tropism does the root exhibit?
- Positively phototropic
- Negatively geotropic
- Negatively thigmotropic
- Positively hydrotropic (correct)
What do the cells of the root cap secrete for lubricating the passage of root through the soil?
What do the cells of the root cap secrete for lubricating the passage of root through the soil?
- Chlorophyll
- Mucilage (correct)
- Cellulose
- Starch
In many hydrophytes like Pistia and Eichhornia, what replaces the root cap?
In many hydrophytes like Pistia and Eichhornia, what replaces the root cap?
What type of roots are generally cylindrical and non-green?
What type of roots are generally cylindrical and non-green?
What don't roots in hydrophytes like Pistia and Eichhornia need to do?
What don't roots in hydrophytes like Pistia and Eichhornia need to do?
What is the function of the region of cell division or meristematic region in roots?
What is the function of the region of cell division or meristematic region in roots?
What is the main function of the epiblema or piliferous layer in roots?
What is the main function of the epiblema or piliferous layer in roots?
What is the role of the region of maturation or cell differentiation in roots?
What is the role of the region of maturation or cell differentiation in roots?
What is the main function of lateral roots in plants?
What is the main function of lateral roots in plants?
What is the purpose of root hairs in plants?
What is the purpose of root hairs in plants?
What is a notable feature of epidermis with root hairs (epiblema) in roots?
What is a notable feature of epidermis with root hairs (epiblema) in roots?
What is the main function of the region of elongation in roots?
What is the main function of the region of elongation in roots?
What is the primary function of root pockets in aquatic plants like Pistia and Water hyacinth?
What is the primary function of root pockets in aquatic plants like Pistia and Water hyacinth?
What is responsible for the absorption of mineral salts in roots?
What is responsible for the absorption of mineral salts in roots?
Apart from anchoring, what is another function performed by roots to prevent soil erosion?
Apart from anchoring, what is another function performed by roots to prevent soil erosion?
Which of the following characteristics is NOT associated with plants?
Which of the following characteristics is NOT associated with plants?
What major evolutionary development allowed embryos to leave the parent plant encased in a resistant coat with a food supply?
What major evolutionary development allowed embryos to leave the parent plant encased in a resistant coat with a food supply?
What specific adaptation played a crucial role in protecting gametes and embryos from desiccation?
What specific adaptation played a crucial role in protecting gametes and embryos from desiccation?
From which group of organisms did plants evolve?
From which group of organisms did plants evolve?
What allowed plants to move from water (algae) to land approximately 400 million years ago?
What allowed plants to move from water (algae) to land approximately 400 million years ago?
What type of autotrophic organisms have cellulose cell walls and store carbohydrates as starch?
What type of autotrophic organisms have cellulose cell walls and store carbohydrates as starch?
Which type of plants lack true roots, stems, and leaves?
Which type of plants lack true roots, stems, and leaves?
What is a notable characteristic of mosses?
What is a notable characteristic of mosses?
In which type of plants are needle-shaped leaves a common characteristic?
In which type of plants are needle-shaped leaves a common characteristic?
Where are the spore-producing organs located in ferns?
Where are the spore-producing organs located in ferns?
Which division of plants includes whiskferns and lacks many terrestrial adaptations?
Which division of plants includes whiskferns and lacks many terrestrial adaptations?
Which type of plants have a trend toward increasing dominance of the diploid sporophyte?
Which type of plants have a trend toward increasing dominance of the diploid sporophyte?
What is a characteristic of dicotyledons?
What is a characteristic of dicotyledons?
Which group of plants produces flowers and fruits?
Which group of plants produces flowers and fruits?
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