Chlorophyll

A cell is the basic unit of living organisms. From single cellular organisms to humans to trees, cells compose all of them. However, cells are split into two domains, those being Eukaryotes and Prokaryotes. Prokaryotes are all unicellular and are less advanced than eukaryotes; meaning that they lack a nucleus and only have a nucleoid region. They also lack membrane bound organelles. Prokaryotes are then broken into two kingdoms, Bacteria and Archaea. Bacteria are the less advanced of the two and…

Photosynthesis and Cellular Respiration Photosynthesis and Cellular Respiration processes are thought of as completely opposite. They are completely opposite processes locked in a never-ending cycle. That cycle helps maintain the Earth's atmosphere to keep the planet inhabitable by making the air breathable. The processes both have many differences between them, but they also have many similarities. They cause the perfect balance that's essential to life, as we know it. The processes help…

Experience 3: Leaf science: how to find the hidden colours Rationale: To understand how leaves change colour and why they are green. This is aimed at moving Billy from pre-theoretical knowledge to sound scientific understanding of chlorophyll while understanding the world around him, in a visual way. Materials: Clear jars Coffee filter paper Pencils Rubbing alcohol A range of leaves, including autumn colours 10 sandwich bags Labels Gardening gloves Rolling pin Curriculum Link: NSW Science…

The results from this experiment show that caffeine can be extracted from a tea bag due to solubility properties of the natural substances found in tea. The two major substances that the caffeine was separated from are cellulose and tannins. Due to the insolubility of cellulose in water, it was easily extracted. Tannins are soluble in water but were neutralized with sodium carbonate to produce water-soluble salts. Caffeine is soluble in methylene chloride which allowed separation of tannins from…

this, but it shows how much attention to detail they had whilst writing and creating it. In Mr. Ray’s little tune, he is telling the students about photosynthesis: the process of organisms producing their own energy from the sun using the chemical chlorophyll. Photosynthesis is not to be confused with chemosynthesis, which is the conversion of molecules (usually carbon dioxide or methane) and nutrients into organic matter as a source of energy. This means that the organism (such as giant tube…

Chloroplast (Plant cells only) - Small oval structure containing chlorophyll giving the chloroplast a green pigment. Chloroplast uses the sun’s energy to create food for the plant, this is known as photosynthesis. Cell wall (Plant cells only) - Provides structure and protection to the cell in the form of an outer layer. This organelle lets H2O, CO2, and O2 pass through it. One large vacuole (Plant cells only) - Large sac filled with fluids. The vacuole in a plant cell stores, large amounts…

are tightly packed in a layer below the upper epidermis and stretch across the length of the leaf to maximise light they can trap in the cells. The thing that allows the palisade cells to photosynthesize are the chloroplasts which contain chlorophyll. Chlorophyll is a name for closely packed green pigments that allow plants to absorb energy from sunlight. Sunlight is not so much an ingredient of photosynthesis but tool used to convert Carbon dioxide and water in glucose and oxygen. Therefore,…

provide the cell with support and structure. Microtubules are found in Cilia and Flagella and are tiny 'tube' structures that aid the cell is transporting particles around the cytoplasm. In a plant cell, the chloroplasts are plastids that have chlorophyll and are the location where photosynthesis occurs. The Cell wall is found only in plant cells and provides structure as well as security for the…

How is light energy harvested in photosynthesis? - The process where plants use light energy and convert it into chemical energy is called photosynthesis. Plants have parts of them like the chlorophyll that is present inside the chloroplast that soak in light starting a process that will end up making ATP. Carbohydrates within the plants are synthesized from carbon dioxide and water. When photosynthesis occurs then sunlight is turned into sugar and this sugar is kept in the molecular bonds of…

Light intensity: As the light intensity increases the rate of photosynthesis also increases as this is helping the chloroplast to absorb chlorophyll. However, when it reaches its optimum level the level stays the same. Moreover, the Carbon dioxide concentration levels allows the plant to create food quicker. Once the Carbon dioxide reaches its optimum level the rate of photosynthesis stays the same. In addition, at the start, when the temperature begins to rise the rate of photosynthesis rises…