Photosynthesis Lab Walkthrough
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- Опубликовано: 4 окт 2024
- Mr. Andersen shows you how to sink leaf chads in preparation for the AP Biology photosynthesis lab. An empty syringe is used to remove gas from the leaves before the lab. As the chloroplasts absorb light they produce oxygen bubbles which eventually cause the leaves to float.
Intro Music Atribution
Title: I4dsong_loop_main.wav
Artist: CosmicD
Link to sound: www.freesound.o...
Creative Commons Atribution License
The award for most appropriate choice of background music goes to...
The one dude who had hillbilly farmer music for the headphone review
This was actually assigned for homework, the mediating leaves at the end made this worthwhile.
same bro
4 years later and they still steal the work from better teachers, that's why I'm here, homework.
@@WeAreBlank18 It's not really stealing. It's an incredibly common experiment and one of the easiest ways of measuring rate of photosynthesis. So common in fact, that it has its own measuring unit called ET50.
@@Tomfissh you took so long to answer me that I'm no longer in high school and even almost done with college.
@@WeAreBlank18 Congrats bro, did you do any more biology in college?
When the beats drops at 6:08 and the chads start rising... #beautiful
Thank you so much
damn straight kiddo
me
whats the name of the music
chad
As a university student of biology, and now a student-teacher of biology. I seriously can't thank you enough. I've watched your videos for years as a resolution to my educational frustrations. You're the man, Mr. Anderson. Can't wait to get this lab going with my high school students.
Evan Shanes س
Evan Shanes sorry to hear that buddy
The first chad starting to rise at 6:09 was so dramatic, especially with the cymbal crash in the background
find your cat
JerusalemStrayCat the music really adds so much.
Mr Anderson you are saving my life in AP Bio :)
Brittany Gillespie oh snap
She jot
Hot
Same except its this year
bruh we're learning this in our basic bio class
The end helps relieve stress!
No one:
Master shifu:
"I must go my planet needs me"
Did this for my Hw Thanks 🤣
SAME
I drank the water and idk what was in it so I came to this video thank god its just baking soda
what were you thinking
HAHAHA
Lmao😂😂😂😂
Wouldn't want to damage your brain cell
My entire class got them to sink, but no one got them to float. We unanimously decided to pretend it never happened.
I was forced to watch this as part of our pre-lab for our own Photosynthesis experiment...
I am really tired as I procrastinated, and I just wanted to get it over with _(side note: it was easy as took like 15 minutes)_
I watched this vid expecting to be bored, but I actually found it really interesting. Hope I do good at the lab tomorrow.
Omg that’s me right now.
Thank you kind sir, I have been stuck with a college bio lab at the last week before the semester since the person that had agreed to do it backed out. I have taught the lecture for several years, but this is new and I am scrambling and can't find a supply of rennet or rennilase for the lab I was going to do, so this will be a fabulous replacement integrating the sci method testing different wattages or distances from the heat sink.
Got a biology assignement about this experiment. Thanks for the well explained and comprehensive video!
That music tho :DDD
It brought the biggest grin on my face. It just made the floating leaves both glorious and ridiculous.
Jan M. Jackie chu sml
Summary of video: if you put light over plant cells, they can see the camera you are recording with. So, they fly away from the view out of embarrassment.
You're welcome for this true level of scientific knowledge.
My students always cheer the chads as they rise- it is great to watch!
Everbody gangsta till the leaf starts to ascend
Ooh, I like the music!
The only reason why I am passing AP Bio thank you
Today's my birthday and I didn't feel like creating a flowchart and copying down a procedure in my notebook! You saved me a good deal of time! Great pre-op! Thanks!
happy birthday
Mr. Andersen...Thanks for making me love Science...
Thanks a lot sir. These lab videos are really a blessing!
Master Shifu could never.
Thanks! Helped me a lot for lab tmrw!
Excellent educational tools....yaa for eSciencelabs!!!Go Nick!
@LayPhysicist I think so too. I could watch floating chads forever. :)
Thanks for the video. Me and my teammates are looking for an experiment about photosynthesis and we're so out of ideas on how are we gonna put an experiment of it. Then my friend saw this video and it really helps... Now we're gonna use this for our experiment... The chads floating is fantastic... I like it :)
Thank you! You have made the written lesson plan I inherited make sense.
How have I never seen this video before, yet it seems so iconic?
Apparatus list:
• Hole punch
• 1 leaf
• 100 ml of water
• Syringe
• Beaker
• LED light
• Stopwatch
• Backing soda
Thank you mr. Bozeman Science. I will be doing this for my botany online class.
That video was oddly relaxing and calm.....IT WAS MEGA AWESOME!
Doing homework in 2019 😵😦
@jediguy 12 😂
One of best ans practicle
great work
this cool but how his phone stayed up is amazing
so awesome. I wish you were my bio teacher.
this is so cool
I have been struggling ever since my pet dildo died, his name was henryetta. Also I was just diagnosed with stage 69 aids, but this video was legit the second cumming of christ. Keep up the good work Daddy Anderson. #courageous #riptompetty
6:07
Chad: "I must go now. Farewell."
the photosynthesis occurs in the leaf chad and they produce O2 in the leaf cavity, increasing their buoyancy, thus rising it up
@zombiegirl775 It was a stock clip from Apple's iMovie.
The chosen one has been selected!
This was brilliantly and beautifully explained, Good Sir. Thanks ! : )
Awesome. I was totally cheering the little chad on.
Man! Thanks! I love you! All my biology 9 class loves you so so much! my teacher is Brennan Van Loo, he also loves you. We adore what you do! XOXO
Thank you SOOO much for this tutorial!! This helped me pass AP Biology :DD My
P.S : I love Leaf Chads
the leaves: doing photosynthesis
me: vibing to the background music
I’m dying 😂 someone added this video to a $uicideboy$ playlist
Super informative video tho I can’t lie
i just ate some spinich chads for lunch today, thanks mr anderson!
So if you punch a leaf disk across a vein,is that gonna impact the results?
Would anyone know the purpose of pushing on the syringe after you have pulling on it? We did this lab a couple of weeks ago and nobody in our class was able to get the leaf chads to rise after sinking them in the syringe. I was surprised at how fast those leaves sank for Mr. Anderson as when I was duplicating the experiment, I spent upwards of 10-12 min creating the vacuum in the syringe to sink even a few chads.
Pushes the water into the leaves
Ooops here where I understand the photosynthesis thourghly ... Great great job... Really thumbs UP ;)
Love your videos. Cool music.
Adding this to my favorites because of the ending xD
lol, the leaves at the end tho. that made my morning
The video quality may be bad, but the content is great!
The ending tho brings back some childhood Jackie chan tv show memories
I used "the force" with my hands to raise the chads on screen. It was beautiful.
Hail Mr Anderson
Your are really good teacher thank you for teaching me :)
Can someone explain to me how the leaves generate oxygen bubbles without carbon dioxide? Mr. Anderson said all gas is removed from the leaf during the syringe step, so that would mean CO2 got removed too. Is there still CO2 in the leaf chads? Or is the oxygen producing step not reliant on CO2?
Edit: I figured it out but decided to leave the comment here for anyone else who had the same thought.
The light dependent reactions of photosynthesis are the ones that make O2 and the only input is air and light. So yeah. The step that needs CO2 is the Calvin cycle.
Thank you!
But there is CO2 in the water....
jk dont do this fucking lab, its hard af
I understand that the rate of photosynthesis is the independent variable and ET50 is the dependent variable. But I'm unsure of how to determine the rate of photosynthesis of ET50. Please help!
brilliant experiment!!!
Hi Mr. Anderson- My class did this lab, and I'm having trouble determining the dependent & independent variables, and the control. I assumed that the dependent variable was the number of chads, the independent variable was the amount of 02 in the chads when exposed to sunlight, and that the control was the amount of liquid in each cup. Is this correct? Thanks again for making these videos, they make bio so much more understandable!
9 years later, maybe for another student... This is not an experiment, it is actually the control. You have to compare this with another condition, which is your independent variable (amount of light, color of the light, temperature, etc). Then what you measure (the time at leaves start to float) is your dependent variable (which is proportional to the amount of O2 or photosynthesis rate).
Sorry if my english is wrong.
this is really interesting (even though im watching it for online school)
Beautiful :,D Thank you Mr. Anderson!
That leaf chad... That leaf chad is the chosen one...
why do teachers find such old videos for schoolwork, like they’re good but why do they find the oldest possible videos
says the comment from 4 months ago
@@muffinblueberry says the comment from 2 moths ago
@@JennyPawlak says the comment from 3 months ago
@@souppe9616 says the comment from 5 months ago
music in the end i rate 5 stars
5:20: Showing this video to my students to instill a sense of wonder!!!
Dat asian music at the end though :3
Lmao, that music, so deep. xD
Lol the music gets faster and harder as it starts to float.. perfect.
The music choice bro??? Am I watching a photosynthesis lab or learning the way of inner peace from a Japanese monk? 😭🙏
whats the name of the song played when the leaves are beginning to float?
womanizer by britney spears
Darude- Sandstorm
never gonna give you up - rick astley
ruclips.net/video/dQw4w9WgXcQ/видео.html
I drank the water and started floating in my pool thank god it was just leaf chads
nice video!
cool music!
Good video. I would like to suggest your get a camera that records higher resolution, it was a litte hard to see clearly
What an amazing experiment! Go science. Where did you find this?
i like the music!
Yep I'm here from Kelly too-
Great video! It helps but you are a few labs behind us. It seems that I turn in a Lab Report a week before your video on that lab comes out! We just finished the Mitosis and Meiosis Lab in my class
Of course no need to change the way you do things for one class.
Much appreciated! Every time I watch one of your videos I feel like I am getting 1 step closer to getting a 5 on the National Exam
Thanks again!
最后的背景音乐真的感人
说的好。
soundtrack at the end lowkey slaps
that fact that they are called CHADS
You don’t have to make a heat sink because we are using LED bulbs. But this is basically how you set it up.
How about a shortened version of the video with just the floating chads that we could play on a loop so the students can watch it while they work!?
very good thank you
love u mr bozeman
mr. anderson :)
Very helpful thank you!!!
Omg who else is here because of mrs Tobin
+Naomi Marquez yeet
+Naomi Marquez yea
I have to do this tomorrow
the music at the end made me feel things
So what actually causes the leaf chads to rise
+Calypso Calypso Photosynthesis. The process that happens in the syringe pulls the air out of the leaf chads, then by creating a vacuum with the solution, it causes the Carbon Dioxide in the solution to be sucked in, replacing the air. When placed in the sodium bicarbonate under a lamp, photosynthesis starts and releases the byproduct of Oxygen, which increases the buoyancy of the chad and makes it float. We just did this lab in my class.
please i lose sleep because of this
thx ms lin