This video is talking about about the photosynthesis.This is our learning topic t
his week.This video gives us the definition of the photosynthesis and the functi
on of the photosynthesis.For example,plant prepare their own food by a proce
ss called photosynthesis.Leaves have tiny pores called stomata through which
carbon dioxide enters the plants…
This video is accurately give us the information.The person who makes this vi
deo use the animation.It’s easy to make audience understand.So I suggest to
use the video to learn what photosynthesis is.
This week we were doing the lad for photosynthesis.Each group should design their own experiment. We have to choses different factors to make that experiment.And see how can those factors affect the rate of photosynthesis.My favorite apart for this experiment was using the syringe to suck out the air for the leaf.Also that was the most challenged part.And that will make the leaf do not flow on the top of the water.
Essential Question: What factors affect the rate of Photosynthesis? What are the processes of Photosynthesis?
We started out this week by giving our presentations of our lab reports to the class. Each group relayed their lab findings to the class to help us form a better understanding of photosynthesis and compare our experimental approaches. Our group learned from watching another group’s presentation on our same chosen topic, which allowed us to compare our results. The most challenging part of the week was when we played a review game on Wednesday which covered many important topics regarding photosynthesis (as pictured), which opened up many student’s minds to the importance of studying for the quiz. On Friday we continued our review though asking questions, going over some videos, and talking about the upcoming quiz.
The objective for this week (from Monday, August 21 to Friday, August 25)
was to set experiment and record data. Students in AP Biology class were supposed to
form a group, set experiment with different independent variables and file data to write
a lab report and present to the class.
Since every group has to start over the experiment again mainly because of the
poor condition of leaves, we all spent two to three class hours to work on
photosynthesis experiment. The first group composed of Susie, Jonah and Angelia set
different types of leaves as an independent variable. They completed their experiment
on the second class day. The second group that consists of Emily and Jenny set different
colors of the same leaves as an independent variable. Independent variable of third
group Jerry, Sunny, and John was temperature. Lastly, Yujin and I differentiated the
amount of baking soda. By setting our own experiment, differentiating particular variable, and
observing the differences, we all could observe and understand how photosynthesis
works and what factors affect photosynthesis. In my opinion, this experiment
assignment was helpful for us to grasp the context.
I have found this video on youtube called Photosynthesis, the Light Reactions, part 3: Mak-
ing O2 and NADPH, Cyclic Electron flow, despite its long and unattractive name, it is a science mu
sical lecture that features rap lyrics which rhyme perfectly in musical rhythm. It mainly discusses th
e electron flow and the creation of NADPA and O2 in the PS I and PS II, and great detail is given ab
out the transformation of matter in each steps and where the energy comes from, making it a video a
ppropriate for both learning and entertainment. The issue with this video, however, is that it talks ab
out all the knowledge in an extremely fast speed, making it unsuitable for people who are not famili
ar with details about photosynthesis to watch. For people who have learnt photosynthesis profoundly, this can be a good review.
This article talks about what is photosynthesis, the stage
of photosynthesis, the steps and objective of the floating
leaf disk experiment, and other experiments that could
test photosynthesis. This is a really good article since it
provides a very thorough introduction and explanation on
the same experiment we did in class. It does a good job on
explaining the function of each step of the lab. Another
experiment it suggests at the end could also be a cool
alternative on testing the how the light factor impact
photosynthesis. However, it is just an overview of
photosynthesis and the lab, so it can’t provide any further
deep insight into it. It would be better to have a video
Objective: What are the factors that affect the rate of photosynthesis?
What we did: On Tuesday, we did an investigation experiment on photosynthesis. The objective of the lab was basically testing the factors that affect the rate of photosynthesis. We made two different solutions: one containing sodium bicarbonate (function as CO2) and one without. The most complicated part of this experiment is extracting the air out of the leaves and creating a vacuum. Once the vacuum is created and the disks sunk to the bottom of the syringes, we pour them into the according cup. We put the two cups under light source and expect to observe that the disks in the cup labeled “with CO2” rise up faster than those in the other cup since CO2 is an essential intake for plants to carry out photosynthesis.
After the initial experiment, we have to come up with our own variables that affect the rate of photosynthesis and test them with the experiment of our design. There are two types of factors: environmental and experimental. We could test the light intensity, the types of leaf, the temperature, etc. Every group will write their experiment into a lab report and present them in front of the class.
Reflection: The most exciting portion of this week is the two labs we did. Students are able to go into the laboratory and design their experiment based on research and brainstorm. This kind of group work is also efficient and students were able to exchange their ideas to produce some viable postulates.
Link of the recourse: https://blog.udemy.com/photosynthesis-experiment/
Pros of this resource: - This resource gave us some information, they introduced what is photosynthesis, stages of photosynthesis, also provided an example which is the floating leaf example. - it is very detailed because they also provide description and materials for the experiment. - We can easily to read because this is made very clearly, they have big titles, and description right under each title. - They made the words very big so that people can clearly see them. - I like the website’s design - They high lighted important points using blue color.
Cons of this resource: - They can maybe put some pictures about the lab that they are describing, so that can help people easier to understand. - They should put more pictures, because people like to see pictures more than words so I think putting more pictures in this website can make it look more convincing.
I found this video on YouTube called "Nature's smallest factory: The Calvin cycle", and this will be a great help for anyone needing help to deeply understand the process of Calvin cycle in photosynthesis. It has nice animations that visualize how Calvin cycle looks like, fully describes how glucose is made out of ATP and NADPH, and clearly teaches us the process in which carbon molecules are recycled to form Rubisco needed to sustain Calvin cycle. Another good thing about this video is that it clarifies vocabularies such as NADPH, G3P, and ATP, so that it helps us understand and memorize them easily. This resource can be found at:
- Yu Jin