17 Questions
Plants provide most of the calories and protein for the human diet. Is this statement true or false?
True
Photosynthesis is the process by which plants convert __________ and __________ into sugars.
Carbon Dioxide, Water
Which of the following is NOT a human necessity mentioned in the text?
Transportation
Plants serve as __________ in the food chain by producing sugars through photosynthesis.
Producers
Which of the following is NOT a product supplied by angiosperms as mentioned in the text?
Plastics and synthetic materials
Which of the following is true about stamens and carpels in angiosperms as mentioned in the text?
They are the structures that produce seeds
Which of the following is NOT a role of plants in the food chain as described in the text?
Tertiary Consumers
Which of the following is a by-product of photosynthesis as mentioned in the text?
Oxygen
Which elements are carbohydrates composed of?
Carbon, hydrogen, and oxygen
What is the main function of carbohydrates in cells?
Sources of energy
How many different amino acids make up proteins?
20
Which type of lipids are largely composed of carbon and hydrogen?
Triglycerides
What is the main role of proteins in the human diet?
Structural materials
Which macromolecule is insoluble in water?
Lipids
How do you name a species?
genus name and specific epithet
Which statement is correct?
genus is a group of related species
How did Linnaeus's sexual system work?
likened flowers to marriages
Study Notes
Plant Importance
- Plants provide most of the calories and protein for the human diet.
Photosynthesis
- Photosynthesis is the process by which plants convert light energy and carbon dioxide into sugars.
Food Chain
- Plants serve as producers in the food chain by producing sugars through photosynthesis.
- Plants are not a human necessity mentioned in the text (False, plants are a human necessity).
Angiosperms
- Angiosperms supply seeds, fruits, and flowers.
- Angiosperms do not supply amino acids.
Angiosperm Structure
- Stamens and carpels are the reproductive structures of angiosperms.
Photosynthesis By-Products
- Oxygen is a by-product of photosynthesis.
Carbohydrates
- Carbohydrates are composed of carbon, hydrogen, and oxygen.
- The main function of carbohydrates in cells is to provide energy.
Proteins
- Proteins are composed of 20 different amino acids.
- The main role of proteins in the human diet is to build and repair tissues.
Lipids
- Fats are a type of lipid that is largely composed of carbon and hydrogen.
Macromolecules
- Lipids are insoluble in water.
Species Classification
- A species is named using the binomial nomenclature system.
- A species is named using the genus and species name (e.g., Homo sapiens).
Linnaeus's Contributions
- Linnaeus's sexual system was a classification system based on the number of stamens and pistils in a flower.
- Linnaeus's system worked by grouping plants based on their reproductive structures.
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