a. photons are packages of solar energy
b. the longer thewavelength of light, the more energy it has.
c. chlorophyll absorbs energy from light
d. photons with different energy levels produce different colors
e. visible light is a very small portion of the electromagnetic spectrum
b. the longer thewavelength of light, the more energy it has.
As wavelength increases the frequency decreases.
a. photons are packages of solar energy
b. the longer thewavelength of light, the more energy it has.
c. chlorophyll absorbs energy from light
d. photons with different energy levels produce different colors
e. visible light is a very small portion of the electromagnetic spectrum
b. the longer thewavelength of light, the more energy it has.
As wavelength increases the frequency decreases.
I have a few questions that require answering due to the fact that my text book is faulty and google in fact, is not all-knowing (haha). The best answer will go to the first person to answer as many as possible. I thank you in advance. Answers do not need to be paragraphs long, to the point works just fine. Please state sources so I can further extend my knowledge.
1. Role chlorophyll plays as a vital link in maintaining the biosphere
2. "You have been asked to design a greenhouse to grow plants for your community. One of the specified requirements is that the glass transmits only green colored light. Explain the effects of this decision on the ability of the plants to photosynthesize."
3. Why do autotrophs and heterotrophs have the necessity to carry out the process if cellular respiration while only autotrophs are capable of photosynthesis?
4. Which molecule holds more energy, ADP or ATP?
5. In what manner are solar cells and the action of chlorophyll similar?
6. ATP produced in light reaction is vital to photosynthesis, how will this be used in photosynthesis?
7. Is the reaction — Glucose -> Pyruvic acid -> lactic acid — aerobic or anaerobic? How does athletic training delay this reaction?
8. What is oxygen’s key role in aerobic cellular respiration? Explain it’s importance.
9. Compare aerobic and anaerobic respiration in terms of reactants, products and ATP production.
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Once again, thank you very much in advance, you answers would greatly aid me in studying for my final.
1. The sun is the primary energy source on this planet. Chlorophyll has the ability to effectively harness this radiant energy and convert it into
high energy bonds of organic molecules, i.e. food, at the producer level,
the beginning of the food chain.
2. Dumb design. Green plants cannot use green light effectively to carry on photosynthesis. Best to transmit blue and red wavelengths.
3. Regardless of whether or not an organism is capable of producing their own food, both must have a mechanism to utilize the food that is obtained. Respiration is a necessary energy producing process for organisms whether or not free oxygen is needed.
4.ATP. It contains a high energy bond not found in ADP.
5.They are both capable of converting the sun’s radiant energy into a more usable form. Solar cells:Solar Radiation —-> electrical energy ;
chlorophyll: Radiation —–> high energy bonds in organic compounds.
6.The "dark reactions" (Calvin cycle) needs this energy to produce the building blocks of carbohydrates, like PGAL.
7.Anaerobic. An athlete who is "in great condition" can get a better supply of oxygen delivered to their body cells. An endurance athlete, like a marathon runner can keep a pace to operate on an aerobic level.
8.In the final stages of the Kreb’s cycle, oxygen is the final hydrogen acceptor, producing water as a by product of aerobic respiration.
9.http://www.buzzle.com/articles/aerobic-and-anaerobic-respiration.html
http://answers.yahoo.com/question/index?qid=20080321103720AAqq3mf
http://www.tutorvista.com/content/science/science-ii/respiration/types-aerobic-anaerobic.php
my grandma was on her way home when she spotted the sun right before the solar eclipse that night. She said it was the most beautiful sight ever, she said there was some sort of pattern underneath the sun, and it was reflecting the suns light in a certain way, she said it was hard to explain. "There were sort of a crystal pattern under the sun, just hovering there, so beautiful and bright, with many colors" Said me grandma. What did she see?
It is known as a "sun-dog". It is caused when the light rays from the Sun strike ice crystals that make up a cirrus cloud. The light is refracted and caused the multitude of colors your grandmother saw.
If the tower has a broad base with space for air to enter and the tower or building is tapered to narrowing at the top and the top of the tower is colored black with a lighter colored base, would wind speeds be sufficiently increased by solar heating to drive one or more propelers and turbines throughout the height(calculate best height)? This design, if feasable could be located any place there is sun and would not endanger birds or necessarily look obnoxious. Do nuclear towers look obnoxious? It might not even need too much sun to cause a strong updraft. Deserts could be packed with these and if direct electricity plus hydrogen and oxygen were produced by electrolysis on a more or less continuous basis, a new industry of production, storage and transportation of byproducts could be created. It sounds great … if enough wind speed is generated.
Or if design is broad lower building; similar concept but with many smaller turbines strategically located as calculated by engineers…?
This idea has been proposed a number of times. Please refer to the links below.
and are solar pannels coloured, or clear?
When you look at an object you see the light that is reflected off the object. When you look at a white object you are seeing the whole light spectrum,
(however the reason that white objects do absorb some heat is that they aren’t perfectly white and reflect most of the light but not all)
However black objects absorb all the light. So darker objects absorb more light thus heat up because both light and heat are forms of energy. So when the light enters your dark object the energy is transformed into heat.
Each star is a sun, similar to our Sun, except that
1.they are different colors
2.they are very far away
3.some emit no light at all
4.none of the above
Which of the following is not true regarding galaxies?
1.There are millions of galaxies
2.Galaxies contains millions of stars
3.Some of the stars you see at night are galaxies of stars
4.The Milky Way galaxy is so big that one revolution of the stars in it around its center takes one full Earth year
2 and 4
a. plant pigmens give colors to attract plant eaters.
b. it reflects light energy that will be used to produce ATP.
c. it contains the enzymes needed to produce carbohydrates
d. it absorbs solar energy and provides electrons that will be used to produce ATP.
2. what are the products of photosynthesis?
a. water and carbon dioxide
b. water and oxygen
c. oxygen and carbohydrate
d. carbohydrate and water.
can someone explain the correct answer ty
d
c
a. plant pigmens give colors to attract plant eaters.
b. it reflects light energy that will be used to produce ATP.
c. it contains the enzymes needed to produce carbohydrates
d. it absorbs solar energy and provides electrons that will be used to produce ATP.
2. what are the products of photosynthesis?
a. water and carbon dioxide
b. water and oxygen
c. oxygen and carbohydrate
d. carbohydrate and water.
can someone explain the correct answer ty
d
c
How long did it last ? As I’ve observed, it was of about 10 seconds. I observed on a wall of light colour b coz the sun was only < 25 degree of angle of elevation above the horizon. The rippling bright & dark wave pattern was not all the time continuous, rather, it came in burst or pulses, not all the time faint but never very sharp too. It was like many fibrous snakes, one over other moving fast in a direction perpendicular to the direction of moon’s shadow movement. No video of any solar ecliptic shadow bands is available on internet of that much or bigger duration so far. This was visible just before & after totality phase of eclipse. The view was very nice. No video recorder of that eclipse has shown anywhere on internet so far. If you are keen on watching beautiful celestial diamond ring, you will miss the chance of watching shadow bands. I momentarily watched diamond rings & fucused more attention on the bands, mostly ignored by people & media. Do you have more informations to better or refine my observations ? Chinese & Japanese people must have better observations. Most of the observers were from Shanghai city, the biggest ever city having total solar eclipse in history of longest duration in 21 st century.
To Dave M : Sir, I’ve observed total solar eclipse for the third time as this time, it was of longest duration, so was the duration of shadow bands. It is due to turbulence in the earth’s atmosphere when small amount of light remained passes through that. It was earlier thought to be like shadow bands at the bottom of any swimming pool when air shakes the water susface but this time I observed, it was characteristically different from that , all the time looking like moving from north to south.’ U Tube’ & ‘Google’ have some recordings but not of that much duration & shadows as I’ve observed this time.
See answers to one of my questions on this topic earlier, few weeks before the eclipse of 22nd July, 2009.
I have observed shadow bands on 24th October 1995 total Solar eclipse
Just before totality. That eclipse lasted only 55 seconds and I was observing from a village 23kilometers from Alwar Rajastan in India.
We put a white cloth on the ground expecting this phenomenon.
Later when I checked the newspaper reports there was no mention about this phenomenon.
