Podcast
Questions and Answers
What is the main pathway of anabolic metabolism?
What is the main pathway of anabolic metabolism?
Which organelle is responsible for photosynthesis?
Which organelle is responsible for photosynthesis?
What are the three main products produced during the light reactions of photosynthesis?
What are the three main products produced during the light reactions of photosynthesis?
Which pigment is primarily used in photosynthesis and what colors does it absorb?
Which pigment is primarily used in photosynthesis and what colors does it absorb?
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What occurs during carbon fixation in the Calvin cycle?
What occurs during carbon fixation in the Calvin cycle?
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What is the main enzyme involved in the Calvin cycle?
What is the main enzyme involved in the Calvin cycle?
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Which stage of photosynthesis takes place in the thylakoids?
Which stage of photosynthesis takes place in the thylakoids?
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What distinguishes autotrophs from heterotrophs?
What distinguishes autotrophs from heterotrophs?
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Study Notes
Photosynthesis
- Photosynthesis is an anabolic pathway that converts solar energy into chemical energy.
- It occurs in chloroplasts.
- The input is carbon dioxide, water, and light energy.
- The output is glucose (sugar) and oxygen.
- Photosynthesis is an endergonic reaction.
Cellular Respiration
- Cellular respiration is a catabolic pathway that breaks down glucose to produce ATP.
- It occurs in mitochondria.
- The input is glucose and oxygen.
- The output is carbon dioxide, water, and ATP (energy).
- Cellular respiration is an exergonic reaction.
Autotrophs vs Heterotrophs
- Autotrophs (producers) are organisms that make their own food using sunlight, such as plants.
- Heterotrophs (consumers) are organisms that obtain energy by consuming other organisms.
Chloroplast Structure
- Chloroplasts are located in the mesophyll of leaves.
- The chloroplast has an outer membrane, inner membrane, thylakoids, and stroma.
Photosynthesis Equation
- 6CO2 + 12H2O + Light energy → C6H12O6 + 6O2
Cellular Respiration Equation
- C6H12O6 + 6O2 → 6CO2 + 6H2O + Energy (ATP + heat)
Photosynthesis Stages
- Photosynthesis has two main stages:
- Light-dependent reactions (in thylakoids)
- Light-independent reactions (Calvin cycle, in stroma)
Photosynthetic Pigments
- Chlorophyll a and chlorophyll b absorb blue and red light.
Light-Dependent Reactions Products
- Oxygen (O2)
- ATP
- NADPH
Calvin Cycle Products
- Sugar (glucose)
- The main enzyme is Rubisco.
Importance of Photosynthesis
- Creates food (sugar)
- Releases oxygen into the atmosphere.
- Provides energy for all living things through food production.
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Description
Test your knowledge on the processes of photosynthesis and cellular respiration. This quiz covers key concepts such as the inputs and outputs of each process, differences between autotrophs and heterotrophs, as well as the structure of chloroplasts. Ideal for biology students seeking to solidify their understanding of these fundamental topics.
