Cellular respiration and photosynthesis review worksheet – Delve into the fascinating world of cellular respiration and photosynthesis with this comprehensive review worksheet. This guide provides a clear and concise overview of these fundamental biological processes, exploring their intricate mechanisms and highlighting their vital roles in sustaining life on Earth.
Cellular Respiration: Cellular Respiration And Photosynthesis Review Worksheet
Cellular respiration is a metabolic process that releases energy from organic molecules, such as glucose, and uses it to produce adenosine triphosphate (ATP), the primary energy currency of the cell. It occurs in the mitochondria of eukaryotic cells and the cytoplasm of prokaryotic cells.
The reactants of cellular respiration are glucose, oxygen, and NAD +(nicotinamide adenine dinucleotide). The products are ATP, water, and NADH (nicotinamide adenine dinucleotide reduced).
ATP is the main energy currency of the cell. It is used to power all cellular activities, such as muscle contraction, nerve impulse transmission, and protein synthesis.
Photosynthesis
Photosynthesis is a metabolic process that uses sunlight to convert carbon dioxide and water into glucose and oxygen. It occurs in the chloroplasts of plant cells.
The reactants of photosynthesis are carbon dioxide, water, and chlorophyll. The products are glucose, oxygen, and NADPH (nicotinamide adenine dinucleotide phosphate reduced).
Chlorophyll is a green pigment that absorbs sunlight and uses its energy to split water molecules into hydrogen and oxygen. The hydrogen is then used to reduce carbon dioxide into glucose.
Comparison of Cellular Respiration and Photosynthesis
| Process | Reactants | Products | Energy |
|---|---|---|---|
| Cellular Respiration | Glucose, oxygen, NAD+ | ATP, water, NADH | Releases energy |
| Photosynthesis | Carbon dioxide, water, chlorophyll | Glucose, oxygen, NADPH | Stores energy |
Applications of Cellular Respiration
Cellular respiration is used in everyday life in a variety of ways, including:
- Energy production:Cellular respiration is the primary way that cells produce energy. ATP is used to power all cellular activities.
- Industrial processes:Cellular respiration is used in a variety of industrial processes, such as the production of ethanol and other biofuels.
Applications of Photosynthesis
Photosynthesis is used in everyday life in a variety of ways, including:
- Food production:Photosynthesis is the primary way that plants produce food. Glucose is used by plants as a source of energy and to build new plant material.
- Environmental science:Photosynthesis is essential for the global carbon cycle. Plants absorb carbon dioxide from the atmosphere and release oxygen, which is essential for life on Earth.
Questions and Answers
What is the primary difference between cellular respiration and photosynthesis?
Cellular respiration consumes oxygen and releases carbon dioxide, while photosynthesis consumes carbon dioxide and releases oxygen.
What is the role of ATP in cellular respiration?
ATP is the energy currency of the cell, providing the energy required for various cellular processes.
What is the significance of chlorophyll in photosynthesis?
Chlorophyll is a green pigment that absorbs sunlight, providing the energy necessary for the conversion of carbon dioxide into glucose.
