It is important to create a concentration of H+ in the thylakoid space so that the H+ can diffuse through_____ to create _____. Describe what you observed when you used the syringe to bubble air from the atmosphere through clear limewater. From Sunlight? Glucose is also converted into other chemical compounds that enable processes in the plant such as reproduction and growth. The young bean plants would have formed small leaves but the plants would slowly start to die. Photosynthesis and cellular respiration are the life processes performed by most living organisms to obtain usable energy from nature. What drives life on Earth and in ecosystems? Sunlight 7 Is there energy released during photosynthesis? Summarise what you have learnt about photosynthesis in the diagram below. A) Photosynthesis space is a process in which the energy from light is used to produce carbohydrates. Learners may get confused and think that because photosynthesis occurs during the day, that respiration only occurs during the night. Log in Sign up. 8. As this year progresses, learners will have to start filling in more parts of the concept maps themselves, and then hopefully draw their own ones by the end of the year. A group of Gr. Now that we know that plants produce glucose and change this into starch, we can find out if all leaves produce the same amount of starch through photosynthesis. Therefore the plant converts glucose into starch, which is insoluble in water. The metabolic pathway by which plants cap-ture light energy and use it to make carbohydrates such as glu-cose is called photosynthesis. Remember, food is the fuel for our bodies. Do you see that there are some empty spaces? After this, place the leaf into the beaker with the ethyl alcohol. Learners must take note of what measurements they used. This being the first investigation that they will perform in high school, this activity will allow teachers to gauge their level of proficiency and abilities in this regard. In National 5 Biology find out how aerobic respiration and fermentation release energy from food to produce the ATP required for cell activity. Humans, animals and plants depend on the cycle of cellular respiration and photosynthesis for survival. "Knowledge is real knowledge only when it is acquired by the efforts of your intellect, not by memory." Activity: Does our breath contain carbon dioxide? Oxygen is used to break down carbon stored as sugar for energy by the process of respiration. The minimum quantum requirement for photosynthesis under optimal conditions is about nine. BACK TO EDMODO. Compare this test to the results from your taste and texture test to identify which banana contained the most starch. Post the equations of these processes where the students can see them. They can also do this in groups. ATP provides the energy that carried molecules found in living cells required in the process of photosynthesis. and water - using light energy. What is potential energy? The processes of photosynthesis and cellular respiration are linked to each other. to personalise content to better meet the needs of our users. STUDY. Next term in Matter and Materials, we will look at this again and find out about the chemical reaction taking place in the test. If they stop respiring, they will die. photosynthesis-and-respiration-concept-mapping-answer-key 2/2 Downloaded from lsamp.coas.howard.edu on January 6, 2021 by guest the gap between educational psychology and classroom management. The process of photosynthesis is used by plants and other photosynthetic organisms to produce energy, whereas the process of cellular respiration breaks down the energy for use. Photosynthesis and Respiration 3 Model 2 – The Carbon Cycle Green D Atmospheric CO2 D C B Auto and factory emissions Respiration Combustion Red (A) A Feedi Wastes ng Death Red Decay (by decomposing fungi, bacteria, and worms) on ati rm o lF ue lF ssi Fo Carbon Stores (coal, oil, natural gas) 13. After you have done part 1, you can do part 2 in the following lesson. The gas that they collected from each test tube was run through limewater. This chapter provides learners with an introduction to, and revision of, the concepts in photosynthesis and respiration in preparation for a study of the ecosystem. An example of a possible answer is: To investigate the presence of starch in ripe and unripe bananas; To investigate why bananas becomes sweeter as they ripen; etc. a. salinity (how much salt) of the water and high temperaturesb. Test. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water. Together, these two processes form a cycle that helps maintain constant levels of oxygen and carbon dioxide in the Earth's atmosphere. Which banana do you think contains the most starch and the least glucose (a sugar) based on the taste test? The clear limewater turned cloudy white. have to write up their own report. You also need to evaluate your investigation and explain if there were any unusual results and suggest ways that you could have improved your investigation for future researchers who might want to repeat what you have done. Point out that air from your lungs contains a much higher percentage of carbon dioxide from respiration and so this is able to turn the limewater cloudy in a shorter time than atmospheric air will. At a biochemical level, respiration refers to cellular respiration. What do you think or predict will happen when you conduct this investigation? This process is called respiration. Cellular respiration cannot occur without photosynthesis, and photosynthesis certainly cannot occur without the help of its partner. 5. ... What happens in both respiration and photosynthesis? You need to look at what concepts link from these in order to know where to put each one. However some sea slugs have learnt to absorb the chloroplasts from the green algae that they eat into their bodies and can actually photosynthesise themselves! They should also make reference to the fact that the white parts of the leaves do not contain chlorophyll and therefore they do not photosynthesise. This is the currently selected item. As air contains such a small percentage of carbon dioxide, there is not enough to cause a noticeable difference in the limewater. This is a good opportunity to discuss kinetic energy and temperature of a solution. Why do we need to eat food? If you are interested in incorporating real world science into your classroom, this is one website to start looking at: http://www.sciencenewsforkids.org/news-in-the-classroom/. Hence in photosynthesis you have the light dependent reactions and the dark reactions while in respiration there is aerobic respiration and anaerobic respiration. However, when he tested the leaves, he did not find much glucose, but he did find a lot of starch present. Energy is required for photosynthesis, but energy is released during cellular respiration. It is also important to make sure that the only thing affecting the limewater was the gas released in the experiment, and not carbon dioxide from the atmosphere. The need for energy drives the interactions and interdependence in an ecosystem. They can then indicate the results on the drawings. Learners must make drawings of their leaves at the start of the experiment, indicating the different coloured regions as boiling in alcohol will remove the colour. You then need to think back to part 1 and design the method for your investigation. As we learnt in Matter and Materials in Gr. gcbgc123. We will learn more about the whole respiratory system next year in Gr. Method: This should also be similar to Part 1. Plants use sugars (glucose) as a basic molecule from which to make hundreds of other compounds, such as proteins, oils, vitamins, colourful pigments in flowers, strong tasting chemicals (hot chilli plant), sweet tasting nectar and sweet smelling fragrances. Some of the energy is used to make ATP in the mitochondria during cellular respiration, and some is lost to the environment as heat. For example in this case you could read: "Respiration takes place in all organisms, releases energy from food". Materials and apparatus: This should be a similar list to what was used in Part 1. Do not confuse breathing with respiration! The learner's diagram should look as follows: The process of photosynthesis can be presented in the form of an equation: What happens to the glucose that plants produce during photosynthesis? Photosynthesis and cellular respiration are the life processes performed by most living organisms to obtain usable energy from nature. Have you ever wondered why fruit becomes sweeter as it ripens? Aerobic cellular respiration is the process by which cells use oxygen to help them convert glucose into energy. The plant cannot have large amounts of glucose accumulating as this affects the water potential within the leaves, and so some is converted to starch to be stored until it is needed. The chlorophyll must be removed by first dipping the leaf into boiling water for 1-2 minutes to remove the waxy top layer. This specific point was included to allow teachers to reinforce this rule with learners and that we only ever do a taste test if we are sure that a substance is in fact edible. Start studying Photosynthesis and Respiration. Photosynthesis makes the glucose that is used in cellular respiration to make ATP. We will place some pot plants in the light for a day, and some other pot plants in a dark cupboard for a day, and then perform the investigation on the leaves of plants from both groups. 7. Encourage your learners to study the concept maps and make sense of them at the end of each chapter before doing the revision questions. answer choices . When they require energy, they can tap the stored energy in sugar by a process called cellular respiration. Photosynthesis and cellular respiration are very important in the production of energy. In your discussion, you need to explain your results and what they mean. To do this you need read the map from top to bottom and have a look at the concepts which come before. H 2 O. NADPH. •Photosynthesis= is a process by which a cell captures energy in sunlight and uses it to make food. They are glucose (food) and oxygen. Plants are able to capture the radiant energy from the Sun and transfer it to chemical potential (stored) energy for other organisms to use. Gravity. When the sugar was not available it could not react and could not produce carbon dioxide. Fill in the products of photosynthesis in the block on the right. Plants make sugar, storing the energy of the sun into chemical energy, by the process of photosynthesis. A concept map provides another way of representing information (ideas and concepts) in a more visual way. Email. If the limewater changed from clear to cloudy white then this would indicate the presence of carbon dioxide. Differentiate photosynthesis and respiration in terms of cell structures involved, raw materials, end product and energy requirement. After 24 hours, pour 50 ml of the ethyl alcohol into the beaker and place it in the saucepan with water. Photosynthesis converts carbon dioxide and water into oxygen and glucose. First, we want to find out which leaves are able to photosynthesise. If the iodine changes from brownish-orange to dark blue-black that indicates that the leaf or other part of the plant contains starch and must have photosynthesised. Q. 6 and 7? ADP. You can do this using a table, diagrams or a combination of both. Pisum sativum L. cv. Only $2.99/month. Some examples of what learners might produce are included here: Aim: To find out which parts of variegated leaves photosynthesise and store starch. This is because they need sunlight energy to photosynthesise. Within cellular respiration energy is launched, but also can produce up to thirty eight molecules of ATP for that food molecules required to be inside of the plant and then for photosynthesis to begin again. Iodine solution is dripped on it. Why did the farmer see this result? Next term in Matter and Materials, we will look at chemical reactions and define the 'ingredients' as reactants. What do you conclude from these results? Do you remember how we represented photosynthesis as an equation to show what goes in and what comes out? He was scared that his little brother would knock his tub over, so he hid the tub in his cupboard. In photosynthesis, what form of energy is sunlight converted to, and how is this energy stored? Different people like to learn and study in different ways; some people like to make written summaries, whilst others like to draw their own concept maps when studying and learning. Instead animals have something else to provide support and protect the body. Despite the differences between these two processes, there are some similarities. The energy is obtained from the food that we and all other organisms eat. Assessment Rubric 4 can be used to mark this table if you would like a more in depth assessment. We can also create a concept map of this chapter. Take a piece of the ripe banana and a piece of the unripe banana and compare the tastes and textures of each. So how do we test that our breath contains carbon dioxide? pyruvic acid. 10.3. First decide what question you are trying to answer and the aim of your investigation. Let's find out. A by-product is also sometimes referred to as a waste product. Place a few tablespoons of calcium hydroxide, Ca(OH), Leave the suspension to settle for a few days. The emphasis in this chapter is on the use of energy and on how radiant (light) energy is transferred to chemical potential energy and later released during respiration. They set up the following two experiments. Record your observations in a table. [1 mark], Why do you think the yeast solution in Set-up 1 did not produce carbon dioxide. It therefore needs to be heated in a water bath. a) Respiration b) Photosynthesis c) Photosynthesis and some respiration 4) When do plants photosynthesise? By plants and food chains in Gr photosynthesis takes place in all organisms need prepare. 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