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What are two primary functions of glucose in plants?
What are two primary functions of glucose in plants?
Growth and development, and respiration to release energy.
Describe the role of phloem in plant translocation.
Describe the role of phloem in plant translocation.
Phloem transports soluble products of photosynthesis, including glucose, from the leaves to other plant parts.
Identify two plant structures modified for food storage and their types.
Identify two plant structures modified for food storage and their types.
Taproots (like carrots) and stem tubers (like Irish potatoes).
What gas is required for respiration in plants and how does it enter?
What gas is required for respiration in plants and how does it enter?
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What process occurs in the mitochondria of plant cells and what is its importance?
What process occurs in the mitochondria of plant cells and what is its importance?
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State the word equation for respiration in plants.
State the word equation for respiration in plants.
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Explain how food molecules enter the phloem.
Explain how food molecules enter the phloem.
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What role does energy play in plant translocation?
What role does energy play in plant translocation?
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Study Notes
Glucose Use in Plants
- Glucose, a product of photosynthesis, is used for various plant functions
- Growth and development are supported by glucose
- Glucose is stored for future use
- Respiration uses glucose to release energy
- Fruit and seed production rely on glucose
- General plant maintenance also requires glucose
Translocation
- Translocation is the movement of soluble photosynthesis products (glucose) from leaves to other plant parts
- Food moves from production areas to utilization/storage areas via the phloem
- Specialized phloem cells (sieve tubes) transport organic compounds (glucose, proteins, lipids) within plants
- This transport system is crucial for nutrient distribution throughout the plant
- Translocation uses energy that creates osmotic pressure for upward and downward food movement
Food Storage
- Specific plant parts modify to form food storage organs
- The plant part storing food often becomes large enough to hold the food
- Examples of storage organs include taproots (carrot, beetroot), leaves (spinach, cabbage), stem tubers (Irish potato, sweet potato), root tubers (onion, garlic), fleshy leaves (tomato), fruit (groundnuts, beans), seeds (rice, millet), rhizomes (ginger), and stems (sugar cane)
Respiration
- Respiration is a process where living things break down glucose in the presence of oxygen to release energy
- It's referred to as oxidation because it's an oxygen-dependent process
- Word equation: Oxygen + Carbohydrates → Water + Carbon Dioxide + Energy
- Chemical equation: 6O₂ + C₆H₁₂O₆ → 6H₂O + 6CO₂ + Energy
- Respiration takes place inside plant cells' mitochondria
- Oxygen enters the plant through diffusion, possibly from leftover photosynthesis or through water
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Description
This quiz explores the important role of glucose in plant functions, including growth, respiration, and storage. It also covers the process of translocation, where glucose is moved from leaves to various parts of the plant via the phloem. Understand how these systems contribute to plant health and development.
