How would you measure the rate of photosynthesis in spinach leaves?
Determining a method to measure the rate of photosynthesis was an outstanding question, but it was discovered that the rate can be determined either by measuring the consumption of carbon dioxide or the accumulation of oxygen (College Board 1997).
Do spinach leaves undergo photosynthesis?
Vibrations deep within spinach leaves enhance the efficiency of photosynthesis—the energy conversion process that powers life on our planet. The discovery could potentially help engineers make more efficient solar cells and energy storage systems.
What is the dependent variable of the spinach photosynthesis experiment?
For example the one independent variable is the “light intensity” and the dependent is the “rate of photosynthesis” in leaf discs.
What would happen to spinach leaves of you placed them under water and provided light what physical change or changes would occur to the leaf?
When exposed to light, the disks use carbon dioxide and water to produce oxygen and glucose. Oxygen released from the leaves forms tiny bubbles that cause the leaves to float.
How do you measure the rate of photosynthesis lab?
The rate of photosynthesis will be measured by counting the number of oxygen bubbles produced by the Elodea plants in each 2-minute trail. After completing a number of experiments, students and teachers will discuss their findings in relation to macro-level factors that affect ecosystem health and climate change.
Why does spinach have a high rate of photosynthesis?
By absorbing more light, the leaf would be able to photosynthesize at a higher rate than a leaf with less light absorption. Thus, the darker spinach leaves photosynthesized at a higher rate than the lighter mint leaves because of the difference in leaf color.
What three thing did you give the spinach leaves for them to perform photosynthesis?
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
How do you investigate the rate of photosynthesis?
- Set up the apparatus as in the diagram.
- Leave for five minutes for the pondweed to acclimatise to the new light intensity.
- Count the number of bubbles given off in one minute.
- Move the light 10 cm further back.
- Leave for five minutes for the pondweed to acclimatise again.
What product of photosynthesis will we be using to measure photosynthesis rates in the spinach leaf disks?
In this lab, students explore the process of photosynthesis in spinach leaves. As oxygen is produced, the density of the leaves change and they will begin floating in a sodium bicarbonate solution. The time it takes for a certain number of leaves to float can be used to calculate the rate of photosynthesis.
How to model the rate of photosynthesis in spinach leaves?
Using spinach leaves, we modeled the rate of photosynthesis in controlled environments. Using a hole punch, we manipulated spinach leaves into small circles and then removed the gas from each leave with a vacuum.
How does spinach use carbon dioxide in photosynthesis?
Spinach Leaf Photosynthesis Lab Intro: This experiment is aimed to how plants use there crucial elements of Carbon Dioxide in photosynthesis. This shows how plants like spinach can hold there produce oxygen in the leafs which gives them there floating properties.
How does the floating disk technique measure the rate of photosynthesis?
Using the floating disk technique in our experiment to measure the rate of photosynthesis, spinach leaves will be submerged in a concentration of CO2 and a concentration of water. In this experiment, the leaves will only rise to the surface when enough CO2 and light is present to allow the leaf disks to carry out photosynthesis…
What is the hypothesis of the spinach experiment?
Hypothesis= If you add 10 uniform sized spinach leaf disks into a solution with bicarbonate concentration and just water, then the disks in the concentration of sodium bicarbonate will float up faster because there is no CO2 naturally in water, so they’ll have a higher rate of photosynthesis. 1.