Spinach Leaf Photosynthesis Lab Report

This experiment is set up the study the effect of different sodium bicarbonate concentrations on the rate of photosynthesis in spinach (Spinacia oleracea). Photosynthesis is the process by which plants and other photoautotrophs synthesize organic compounds from carbon dioxide (Faculty of Science and Horticulture, 2018). Photosynthesis takes place in the chloroplast of a plant cell, where sunlight, water, and carbon dioxide are used in a reaction to produce oxygen and sugar (Reese 2017). In the photosynthesis reaction carbon dioxide is reduced to make sugar and water is oxidized to make oxygen. In this experiment oxygen production is being used to measure the rate of photosynthesis.

To begin, in this lab we studied the structures of leaves under a microscope. A leaf is best described as a major photosynthetic organ of green plants. Plants carry out the process of photosynthesis to convert carbon dioxide and water into oxygen and glucose for usable energy. This can be represented in a general equation which is 6CO2 + H2O -------> (sunlight and chlorophyll) C6 H12 O6 +6O2. Initially, the leaf is protected by the upper and lower epidermis as well as the cuticle.

dpip turns colourless when electrons are transported which gives us an estimation on the rate of photosynthesis (Mosse, 2015) Temperature can have a great effect on photosynthesis, as generally the higher temperature the higher rate of photosynthesis. Photosynthesis is a chemical reaction, and as temperature rises so does the reaction, however temperatures above 40 degrees slow the reaction down, this is because the enzymes involved in photosynthesis are temperature sensitive and can be destroyed if the temperature is to great. (Nature, 2012) The aims of this investigation are to test the effects temperature has on the rate of photosynthesis of silver beet.

Research Proposal Leslie Macias Science Fair Proposal Leslie Macias Everman Joe C. Bean High School Abstract Plants need sunlight and water to grow. For this project I will be using two plants that are as identical as possible (both barely starting to grow), sunlight, and a UV light. I will find out whether UV light affects plant growth or not. Background

We hypothesized that the beaker that is exposed to higher concentrations of light at a shorter distance from the lamp will produce lower amounts of carbon dioxide due to more available light energy. This experiment will show how the light intensity affects the cellular respiration and photosynthesis in the Elodea plant and whether higher light intensity really does prove more photosynthesis, and thus lower amounts of carbon dioxide, will be made. This experiment is important because it could provide evidence on whether light intensities affect the growth of Elodea and could help manage its

Cellular respiration can be measured by the consumption of oxygen, the consumption of carbon dioxide, and the release of energy during cellular respiration. Within the experiment conducted, the relative volume of O2 consumed was measured into different temperatures within germinating and nongerminating peas, (DeStefano). Fluids and gas flow from regions of high-pressure to regions of low-pressure this carbon dioxide produced during cellular respiration will be removed by potassium hydroxide and will form a solid potassium carbonate. Due to the removal of carbon dioxide, the change in the volume of gas in the respirometer will be directly related to the amount of oxygen consumed. In this experiment using a respirometer, the scientists were able to measure the amount of oxygen being consumed in relation to how quickly the peas were respiring.

it go through how energy transfers from the sun then to the plants and on to the animals. It is more complicated than that but a simple explanation is this. All energy starts from the sun in the form of white light. Then autotrophs being primary producers of an ecosystem through the process of, photosynthesis, turns that sunlight into energy. Then herbivores eat that plant turning the energy in the form of glucose into there own energy through cellular respiration.

Quinn Nguyen Floating Leaf Disk Photosynthesis Lab Conclusion: Graph your results for all 3 trials on one graph. Label the graph, both axes, and provide a legend to distinguish each trial. What was the rate of photosynthesis for each variable? How many leaves floated per minute? Rate of photosynthesis (leaves/min) Spinach: (2-0)/25 = 0.08

LABORATORY REPORT EXERCISE #5 INTRODUCTION TO THE COMPOUND LIGHT MICROSCOPE, PLANT AND ANIMAL CELLS Name_______________________________Section_____Teacher______________Date________ PRE-LAB QUESTIONS - answer the following questions using your textbook and valid internet sources. Be sure to cite your sources at the end of the prelab. You can type your answers to all questions except #1 and #9 directly into this document and then submit via Canvas. Type the answers for #1 and #9 at the end of the document. 1.

Therefore, Green bacteria overcome low light conditions by absorbing light at longer wavelengths since longer wavelengths can penetrate further into the deep water. What are

The animals use water to drink too, except they get it from a river or stream to cool off and get nutrients into their bodies to function properly. The sun is yet another abiotic factor. Even Though the sun is not a living thing, it does help the plants and animals. The plants need the sun to undergo the process of photosynthesis. This how plants make their own food and get nutrients.

photosynthesis and cellular respiration are extremely important in the cycle of energy to sustain life simply because nutrients would not metabolize in a productive manner. Both have numerous stages in which the process of energy occurs, and relationships with organelles located in the eukaryotic cell. Photosynthesis is a process by which green plant and other organism manufacture their food using sunlight to synthesize foods from carbon dioxide and water while cellular respiration is the oxidation of organic compounds that occurs within cells, producing energy for cellular processes. Photosynthesis occurs within organelles called chloroplasts. These organelles can absorb light, and are located inside of leaves.

Aim To observe the effect of light intensity on the rate of photosynthesis. Hypothesis Light intensity is directly proportional to the rate of photosynthesis. When the light isn’t intense, not many oxygen bubbles will be produced and thus observed. This indicates that the plant will not have enough derived energy from the sun to activate photosynthesis. Whereas, when the light intensity is great, the rate of photosynthesis will be high.

Research Question: How does the presence of light impact the rate of transpiration in plants? Aim: The aim of this experiment was to investigate how the presence of light affects the rate of transpiration in plants. Hypothesis: As light intensity increases, the rate of transpiration (water uptake) in a plant increases.

They can be found on educational campuses, institutes, roadsides, hospitals, gardens and offices. If you think of it practically, then plants are the real reason why there are life forms on this planet. Plants provide us with clean air, fresh water, healthy food, and a number of things. Plants are a major factor in all phases of a living bygones life; be it small or big, young or old, or living on land or it water. Plants are quite important to all but humans are most dependent on them.