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Questions and Answers
What is the process of obtaining nutrients and transferring them into the body called?
What is the process of obtaining nutrients and transferring them into the body called?
- Digestion
- Absorption
- Nutrition (correct)
- Diffusion
Viruses show molecular movement even when not infecting a cell.
Viruses show molecular movement even when not infecting a cell.
False (B)
Name one type of nutrition that allows organisms to manufacture their own food.
Name one type of nutrition that allows organisms to manufacture their own food.
Autotrophic nutrition
The splitting of water molecules in photosynthesis results in the production of _______ and _______.
The splitting of water molecules in photosynthesis results in the production of _______ and _______.
Match the following processes with their descriptions:
Match the following processes with their descriptions:
Which of the following organisms utilize autotrophic nutrition?
Which of the following organisms utilize autotrophic nutrition?
Diffusion is sufficient for oxygen transfer in all multicellular organisms.
Diffusion is sufficient for oxygen transfer in all multicellular organisms.
What role do enzymes play in the digestive process?
What role do enzymes play in the digestive process?
The __________ is an essential pigment involved in photosynthesis.
The __________ is an essential pigment involved in photosynthesis.
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Study Notes
Life Processes
- Viruses are not considered alive because they do not exhibit any metabolic processes until they infect a cell.
- Diffusion is not efficient enough for oxygen transport in multicellular organisms because all cells might not be directly exposed to the environment.
- Nutrition is the process of obtaining nutrients from the external environment and transporting them into the body.
- Nutrients are essential for growth and development.
- Enzymes act as biological catalysts, breaking down complex food molecules into simpler substances for digestion.
- Autotrophic nutrition is the process where organisms synthesize their own food through photosynthesis.
- Examples of autotrophs include plants and blue-green algae.
- Photosynthesis involves the following key events:
- Absorption of light energy by chlorophyll
- Conversion of light energy into chemical energy
- Splitting of water molecules into hydrogen and oxygen
- Reduction of carbon dioxide to carbohydrates
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