how do the processes of photosynthesis andd respiration and how they meet the needs of cells, realting these to structures.
i need some help because i dont understand what to do
2007-11-15 17:59:31 · 9 answers · asked by yaaahooooo 3 in Science & Mathematics ➔ Biology
Going to take a leap here and guess that the structures you're refering to are mitochondria (animal cell powerhouse) and chloroplasts (plant cell powerhouse).
Through the process of respiration, mitochondria produce energy for the animal cells in which they reside.
Through the process of photosynthesis, chloroplasts produce energy for the plant cells in which they reside.
2007-11-15 18:06:30 · answer #1 · answered by BP 7 · 0⤊ 1⤋
I think your looking for info only on plants...
Photosynthesis is how plants get their "food": They convert water and carbon dioxide to sugar (glucose-their food) and oxygen( a by product). Sunlight is needed for this reaction to work.
Respiration is the opposite of this reaction. This is the process by which the the plant relases the energy stored in those sugars. It's the reverse of the photosynthesis reaction: the plant takes the sugar and oxygen from the environment and turns it into water and carbon dioxide. During this reaction energy is released.
I can't remember enough biology to relate it to the cell structures but i think it may have something to do with the chloroplast (the kidneyshaped cells on the surface of leaves) and how it behaves in relation to light.
try this site out:
www.science-class.net/PowerPoints/PandR.ppt
And try google-there's tons of info out there to help you understand
2007-11-16 02:53:51 · answer #2 · answered by iced out 6 · 0⤊ 0⤋
first thing you have to understand is oxidation and reduction. Electrons contain energy. oxidation is a process of loosing electron(s) and reduction is the process of gainning electron or electrons. so they always occur together as one atom or molecule or compound or substance looses electron other one gains that electron. so energy is transfered. during photosynthesis, Carbondioxide and water are used for building up glucose which is stored as energy. Building up processes like photosynthesis requires energy.during respiration, cells intake oxygen to break the glucose formed in the photosynthesis. during respiration, glucose molecules are broken to release energy required for cells for carrying out their chemistry of living.
2007-11-16 02:13:57 · answer #3 · answered by rohan r 2 · 0⤊ 0⤋
Photosynthesis= CO2+H2O+Light---absorbed by chlorophyll--->Glucose + Oxygen
Since chlorophyll is needed for photosynthesis, the structures that would be useful are the chloroplasts, which make the chlorophyll.
2007-11-16 03:16:16 · answer #4 · answered by topchelseafan1 2 · 0⤊ 0⤋
Find another teacher to explain what photosynthesis is
2007-11-16 04:36:07 · answer #5 · answered by ptrbsch 2 · 0⤊ 0⤋
photosynthesis takes place wen
co2 is changed into o2
this can only take place wen ther is sun light
at night o2 is absorbed and co2 is release by plants
and do u mean respiration in human?
2007-11-16 02:04:38 · answer #6 · answered by Anonymous · 0⤊ 1⤋
They both supply cells with the gasses they need to survive.
2007-11-16 02:11:29 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Do you know what you are asking yourself? Nobody else around here does.
Complete and utterly nonsense.
2007-11-16 02:41:50 · answer #8 · answered by Anonymous · 0⤊ 1⤋
I know all about this but what are you asking?
2007-11-16 02:03:15 · answer #9 · answered by Anonymous · 0⤊ 6⤋