30 Questions
What is the main stimulus for phototropism?
Light
Which type of tropism involves the plant's response to gravity?
Gravitropism
What is the role of chlorophyll in plants?
Production of sugars from sunlight
Which plant group is known for seed-bearing vascular plants?
Gymnosperms
What is the average lifespan of a columbine plant?
3-4 years
What makes plants unique among eukaryotic organisms?
Ability to manufacture their own food
What is the role of chlorophyll synthesis?
Magnesium
Which plant hormone promotes leaf detachment and seed dormancy?
Abscisic Acid
What is the function of SPINES in plants?
Structural defense
Which element is responsible for cell wall synthesis and root development?
Calcium
Which hormone is known for promoting stem elongation and inhibiting lateral bud growth?
Auxin
What is the role of plant hormones in response to stress conditions?
Increasing tolerance to stress
Where do the light reactions of photosynthesis take place?
Photosynthetic membranes (thylakoids)
What is the primary function of the dark reactions in photosynthesis?
Incorporate CO2 into organic molecules
Which molecule is NOT involved in the production of oxygen during photosynthesis?
O2
What is the main purpose of light absorption in photosynthesis?
Create ATP and NADPH
What are the two main end products of the light reactions of photosynthesis?
ATP and NADPH
In which organelle do the dark reactions (Calvin Cycle) of photosynthesis occur?
Chloroplast stroma
Which plant movement is known as phototropism?
Curving of the stem tip towards the light
Which plant hormone promotes cell division or cytokinesis?
Cytokinin
What biological process does gibberellins promote in plants?
Seed germination
What is the word 'Parthenocarpy' derived from and what does it mean?
Greek, means 'virgin fruit'
How are bananas commonly propagated due to their sterile nature?
By grafting
What is the process that involves joining the shoot system of one plant to the root system of another plant?
Grafting
What is the main function of the seed coat?
To protect the embryo
Which part of the seed is responsible for developing into the plant's stem?
Epicotyl
What is the function of a radicle in a seed?
To develop into the root of the plant
Which type of pollination involves the transfer of pollen within the same flower?
Self pollination
What are some agents of pollination mentioned in the text?
Insects and wind
Which plant coating is specifically found in most above-ground parts?
Cutin
Learn about plant nutrients and essential elements required for plant growth and metabolism. Explore the roles of different nutrients such as boron, calcium, magnesium, nitrogen, and chlorine in various plant processes.
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