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Questions and Answers
What is the female reproductive whorl of a flower called?
Gynoecium (Pistil)
What is the difference between apocarpous and syncarpous flowers?
Apocarpous flowers have many free carpels, while syncarpous flowers have many carpels fused together.
What is the individual member of the gynoecium called?
Carpel (megasporophyll)
What are the three parts of a typical carpel?
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What is the most common type of ovule in angiosperms and how is it structured?
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Which elements are absorbed from the air by plants?
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In what form do plants absorb essential mineral nutrients from the soil?
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Which group of nutrients contribute to over 95% of a plant's entire biomass on a dry matter weight basis?
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In what quantities are micronutrients present in plant tissue?
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How many total essential plant nutrients are there?
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Study Notes
Flower Anatomy
- The female reproductive whorl of a flower is called the gynoecium.
Gynoecium Types
- Apocarpous flowers have multiple, separate carpels, whereas syncarpous flowers have fused carpels.
Carpels
- An individual member of the gynoecium is called a carpel.
- A typical carpel consists of three parts: stigma, style, and ovary.
Ovules
- The most common type of ovule in angiosperms is anatropous, meaning it is inverted and curved.
- Anatropous ovules have a bent, hook-like shape, with the micropyle facing the placenta.
Plant Nutrition
- Plants absorb oxygen, carbon dioxide, and water from the air.
- Essential mineral nutrients are absorbed from the soil in the form of ions.
- Macronutrients, which include elements like carbon, oxygen, hydrogen, nitrogen, phosphorus, potassium, calcium, magnesium, and sulfur, contribute to over 95% of a plant's entire biomass on a dry matter weight basis.
- Micronutrients, which include elements like iron, zinc, copper, manganese, boron, molybdenum, and chlorine, are present in plant tissue in relatively small quantities.
- There are a total of 17 essential plant nutrients.
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Description
Test your knowledge of plant reproduction with this quiz. Learn about the mitotic division of generative cells in pollen grains and the female reproductive whorl of flowers.
