Properties And Functions Of The Cell (Nutrition) Flashcards
What are nutrients?
Nutrients are substances that organisms need for growth, metabolism, and other physiological functions. They include carbohydrates, proteins, fats, vitamins, minerals, and water.
What is nutrition?
Nutrition is the process by which organisms obtain and utilize nutrients for growth, energy production, and maintenance of cellular functions.
Why is water important for cellular nutrition?
Water is essential for various cellular processes, including nutrient transport, chemical reactions, and maintaining cell structure and turgor pressure. It is also involved in waste removal and temperature regulation.
What is the role of carbohydrates in cellular nutrition?
Carbohydrates are the primary source of energy for cells. They are broken down into glucose, which is used for cellular respiration to produce ATP, the energy currency of the cell.
Why is Carbon dioxide important in photosynthesis ?
CO² is essential for photosynthesis because it provides carbon for glucose production, the main energy source for plants and other organisms. Without enough CO2, photosynthesis and plant growth would be limited, impacting life on Earth.
What are the steps in light reaction in photosynthesis?
- Photon Absorption: Light energy is absorbed by chlorophyll molecules.
- Photolysis of Water: Water molecules are split into oxygen, protons, and electrons.
- ATP and NADPH Production: The energy from light is used to produce ATP and NADPH.
- Electron Transport Chain: Electrons move through the electron transport chain, generating ATP and NADPH for the Calvin cycle.
What is metabolism?
Metabolism is all the chemical reactions in your body that help you stay alive and turn food into energy.
What is photosynthesis?
Photosynthesis is how plants turn sunlight into food, using carbon dioxide and water to make glucose and oxygen.
What are the two main stages of photosynthesis?
Light-dependent reactions use light to split water and make energy (ATP and NADPH). The Calvin cycle uses that energy to turn carbon dioxide into glucose.
What are the two main types of autotrophic nutrition?
Photosynthetic nutrition, where organisms use sunlight to make food (like plants), and
chemo synthetic nutrition, where they use chemicals (like certain bacteria).
What are the two types of nutrition?
Autotrophic nutrition, where organisms make their own food, and heterotrophic nutrition, where they eat other organisms for food.
