BIO TEST 4 - LECTURE 5 STUDY GUIDE Flashcards
What were the findings of (a) Jan Baptista van Helmont
JAN BAPTISTA VAN HELMONT(1557-1644)- FOUND OUT SOIL DIDN’T ADD UP MASS TO A GROWING PLANT
A beam of light is able to remove electrons from certain molecules creating an electric current called a _________ and it occurs when photons transfer energy to electrons. Fill in the blank.
PHOTOELECTRIC EFFECT
__________ is the range of efficiency of photons a molecule is capable of absorbing. Fill in the blanks.
ABSORPTION SPECTRUM
Pigments are molecules that are good absorbers of light in the visible range. Which pigment within most plants is considered the main pigment that can act directly to convert large quantities of light energy?
Chlorophyll A
According to the video Why Aren’t Plant Black, we know that most plants do not absorb green on the light spectrum. Which statement explains the five hamburger theory which explains why this happens?
Plants absorb sunlight to make food, but there is a saturation point where shining more light on a leaf does not lead to a higher output
Full sunlight on a spinach leaf is 3 to 5 times the saturation level. It’s like being served 3 to 5 hamburgers when you can really only fit one in your stomach.
According to the video Why Aren’t Plant Black, we know that most plants do not absorb green on the light spectrum. Which statement explains the greedy hamburgular theory which explains why this happens?
Lower leaves of the plant get some of the green light that is reflected and scattered which is good for them. Because you know if you ate all 3 or 5 hamburgers that your family would starve.
According to the video Why Aren’t Plant Black, we know that most plants do not absorb green on the light spectrum. Which statement explains the purple theory that has nothing to do with the hamburgers theory which explains why this happens?
An Archaea called halobacteria that absorbs green and reflects red and blue so it looks kind of purple. It’s what gives this lake its purple color.green algae that were layers deeper in the ocean would have to make do without green light.
_______________ are pigments which are not always highly efficient in transferring light (they prefer to absorb only blue wavelengths) and are also found in all three domains in life (usually as antioxidants in animals). Fill in the blank.
carotenoids
Photosystems are composed of two closely linked components. Which statement accurately describes one of those components?
ANTENNA COMPLEX
REACTION CENTER
Which statement does not describe a difference discussed in class between cyclic and noncyclic phosphorylation?
CYCLIC PHOSPHORYLATION
1 PHOTOSYSTEM
IT DOES NOT PRODUCE THAT MUCH OXYGEN
ELECTRON ACCEPTOR GOES TO THE SAME PHOTOSYSTEM TO BE RECHARGED
NONCYCLIC PHOSPHORYLATION
2 PHOTOSYSTEM
PRODUCES MORE OXYGEN
DOES NOT RETURN TO SAME PHOTOSYSTEM
What is a similarity discussed in class between cyclic and noncyclic phosphorylation?
BOTH HAVE PHOTOSYSTEMS?
BOTH PRODUCE ATP?
Why does using two photosystems instead of one create an enhancement effect?
YOU CAN ABSORB MORE BEAMS OF ENERGY, MORE LIGHT TO CREATE MORE GLUCOSE AND ENERGY
YOU NEED AT LEAST A FEW PHOTOSYSTEMS TO DO DO
What were the findings of (c) Jan Ingenhousz and Joseph Priestly
Joseph Priestly, (c) Jan Ingenhousz(1780s -1800)- FOUND WHAT GASSES PLANTS WOULD GIVE OFF. THEY FOUND OUT THAT THE GAS GIVEN OFF BY A PLANT I OXYGEN BUT THEY DIDN’T KNOW EXACTLY HOW
what were the findings of (d) F.F. Blackman?
F.F Blackman(1905)“ THE ENERGY FROM LIGHT IS GOING TO POWER YOUR ABILITY TO MAKE GLUCOSE IN YOUR BODY.”
