Photosynthesis
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Photosynthesis occurs in the leaves of plants and allows them to produce their own food. It is the process by which plants use sunlight, carbon dioxide, and water to produce oxygen and glucose (food). Chloroplasts in mesophyll cells are where photosynthesis takes place, using light energy to convert carbon dioxide and water into oxygen and glucose, with glucose being stored as a plant's food source. Photosynthesis provides both food for plants and oxygen for animals and humans to breathe.
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IGCSE Biology Revision Notes 2
1. The document provides information on the IGCSE biology specification for the Triple Award, including the classification of living organisms into five kingdoms and the structures and functions of cells, tissues, and organ systems.
2. It also covers topics like photosynthesis, diffusion, osmosis, human nutrition, and the digestive system, providing details on the key processes, experiments, and structures/organelles involved.
3. Specific examples are given for classifying organisms, structures of plant and animal cells, the effect of temperature on the enzyme catalase, and experiments on photosynthesis and energy content of foods.
Biology
The document discusses several key biology concepts including life processes, photosynthesis, plant and animal cells, and cell structures and functions. It defines photosynthesis as the process by which plants, algae and some bacteria use sunlight, carbon dioxide and water to produce oxygen and energy-rich carbohydrates. It also describes the main structures of plant and animal cells including the cell wall, vacuole, chloroplasts and differences between them. Specialized cell types in plants and animals are outlined with their distinctive features that allow them to perform functions like photosynthesis, gas exchange and nerve signaling.
Cells
The document discusses the basic structure and components of plant and animal cells. It explains that cells are the smallest unit capable of life functions and are made of organelles like the cell membrane, nucleus, chloroplasts and vacuoles. The key differences between plant and animal cells are that plant cells contain cell walls, chloroplasts and usually a large central vacuole.
Human Body.pptx
The document discusses the types and functions of plant cells. It defines a plant cell as the smallest unit that can function independently in a plant. It then describes several key organelles in plant cells and their functions, including: the cell membrane, which controls material flow; chloroplasts, which perform photosynthesis; mitochondria, which produce energy; the nucleus, which controls cell activities; the cell wall, which provides structure and protection; and the vacuole, which provides structure. It provides examples of specific plant cell types like root hair cells, guard cells, and palisade cells. It also explains the importance of cells for plant structure and processes like transportation, and what would happen if plants did not have cells.
Essay On Plant Hormones
Plant cells can be modeled using sugar cubes to represent their shape and organelles. Students will build a plant cell model with sugar cubes, toothpicks, and labels to represent five important organelles. The activity teaches that plant cells have a cell wall, large vacuole, and chloroplasts, unlike animal cells. Organelles each have specialized functions that allow the cell to carry out its activities.
Elodea Plant Cell Structure
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Chapter 7 Nutrition in Plants Lesson 1 - Structure of plants and leaves, Gase...
The document discusses photosynthesis and leaf structure and function. It provides:
1) The word and chemical equations for photosynthesis, which converts carbon dioxide and water into glucose and oxygen using chlorophyll and sunlight.
2) Photosynthesis is important as it produces food for animals and stores energy from the sun as fossil fuels, while maintaining atmospheric gas balance.
3) A leaf is made of cells and has specialized structures like the upper and lower epidermis, stomata, and mesophyll tissue that allow it to perform photosynthesis and gas exchange.
Plastids
Chloroplasts are organelles found in plant cells and algae that conduct photosynthesis. They have a complex structure with double and triple membrane systems that divide the chloroplast into compartments. Chloroplasts contain pigments like chlorophyll that capture light energy during photosynthesis to convert carbon dioxide and water into oxygen and energy-rich organic compounds like sugars. This process occurs through light-dependent and light-independent reactions. In addition to their primary role in photosynthesis, chloroplasts also synthesize other biomolecules like proteins, lipids, and fatty acids.
Biologi grade7
The document discusses the key characteristics of fungi, plants, and animal cells. It provides details on the structures and organelles found within these eukaryotic cell types, including their cell walls, nuclei, mitochondria, chloroplasts, and means of reproduction. Major differences highlighted include fungi having cell walls containing chitin, plants having cell walls containing cellulose and chloroplasts for photosynthesis, and animal cells lacking cell walls.
Chapter 5
Cells are small to maintain a high surface area to volume ratio which allows for efficient exchange of substances. There are two main types of cells - prokaryotic cells which are smaller and lack organelles, and eukaryotic cells which are larger and have membrane-bound organelles that perform specialized functions. Key organelles in eukaryotic cells include the nucleus, mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, lysosomes, cytoskeleton, and vacuoles.
Legionella Pneumophila Experiment
Kagan and Roy (2002) examined how the bacteria Legionella pneumophila spreads within cells and creates new organelles. They hypothesized that L. pneumophila-containing phagosomes (LCPs) have two maturation phases, allowing LCP-infected cells to replicate within an organism. Through experiments, they found that BFA did not prevent LCP organelle replication, contradicting a previous study and illustrating the need for more research to determine the true results.
LIFE PROCESSES.pptx
Based on ncert and will be suitable for notes. Covers all the domains. In this PPT nutrition is covered and it also describes the structure of chloroplast which is not described in ncert. All the questions whether objective or descriptive are covered. Might be appear lengthy but is suitable for notes.
All the best đ
Std 12 chapter 2 REPRODUCTION IN FLOWERING PLANTS
BIOLOGY STD 12
HELPFUL FOR NEET/ GSET/NET EXAMINATION PREPARATION
STRUCTURE OF FLOWERS, PARTS OF FLOWER, POLLINATION
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- 2. The student will: īŽ Learn what photosynthesis is and how it helps plants. īŽ Learn what a plant needs for photosynthesis.
- 3. What is photosynthesis? īŽ Plants make their own food. This process is called photosynthesis.
- 4. Where does photosynthesis occur? īŽ Photosynthesis occurs in the leaves of a plant.
- 5. PlantsPlants īŽ Autotrophs:Autotrophs: self-producers. īŽ Location: 1.Leaves a. stoma b. mesophyll cells Stoma Mesophyll Cell Chloroplast
- 6. Stomata (stoma)Stomata (stoma) īŽ PoresPores in a plantâs cuticle through which waterwater and gasesgases are exchanged between the plant and the atmosphere. Guard CellGuard Cell Carbon Dioxide (CO2) Oxygen (O2)
- 7. Mesophyll CellMesophyll Cell Cell Wall Nucleus Chloroplast Central Vacuole
- 8. ChloroplastChloroplast īŽ OrganelleOrganelle where photosynthesisphotosynthesis takes place. GranumThylakoid Stroma Outer Membrane Inner Membrane
- 9. What is needed for photosynthesis to occur? īŽ Light is needed for photosynthesis to occur. The plantâs leaves use the light to make a sugar called glucose.
- 10. Why do plants need glucose? īŽ Glucose is the food for the plant. It gives the plant energy to grow.
- 11. How much glucose does a plant make? īŽ Plants make enough glucose to be used during the night and on cloudy days when they donât get sunlight. The extra glucose is stored in the plantâs leaves and other parts.
- 12. How does photosynthesis help us? īŽ During the process of photosynthesis, oxygen is produced. We use this oxygen to breathe.