- #1
Mk
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How does in terms of energy, photosynthesis, differ from from a chemical reaction that breaks down glucose?
Kinda vague...
Kinda vague...
Making Glucose vs. Breaking Glucose
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AI Thread Summary
Photosynthesis involves two main processes: the light reaction and the dark reaction. In the light reaction, light energy splits water to produce NADPH2, ATP, and oxygen, while the dark reaction uses these products to convert carbon dioxide into glucose and water. In contrast, breaking down glucose occurs in mitochondria through cellular respiration, where glucose is converted into carbon dioxide and water, generating ATP for energy. This ATP is essential for various cellular functions and is recycled within the organism. The discussion highlights the energy transformation differences between synthesizing glucose and breaking it down.
- #2
UrbanXrisis
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Making Glucose: light energy splits water molecules into hydrogen atoms and oxygen atoms. The hydrogen atoms combines with a chemical called nicotinamide-adenine dinucleotide phosphate (NADP) to form NADPH2, which is used later in the dark reaction. The oxygen atoms bind to each other and molecular oxygen (O2) is released into the atmosphere. Also, the light energy is used to produce the energy molecule called adenine triphosphate (ATP), which is also used in the dark reaction. So, the main products of the light reaction are NADPH2, ATP, and O2. During the dark reaction, enzymes use the energy from NADPH2 and ATP (formed in the light reaction) to convert carbon dioxide (CO2), obtained from the atmosphere, into glucose and water. The glucose and water can be stored for future use by the plant.
Breaking Glucose: Glucose is actively transported through the membranes of both the chloroplasts and the mitochondria. Once inside the mitochondria, cellular respiration now begins. The reaction takes place in the Cristae. Glucose will be broken down and carbon dioxide and water are the products of the reaction. Carbon dioxide leaves the mitochondria. Part of the carbon dioxide is recycled again through chloroplasts. Break down of glucose also produces chemical energy that is used throughout the entire body for cell and enzyme functions such as being able to live. The energy is called ATP (adenosine triphosphate). It has three instead of just the one phospate present in DNA. The other two phosphates have high energy bonds. Water, like carbon dioxide, is recycled to other parts of the organism. It too can be eliminated. Once ATP is used for energy it loses a phosphate and becomes ADP.
Breaking Glucose: Glucose is actively transported through the membranes of both the chloroplasts and the mitochondria. Once inside the mitochondria, cellular respiration now begins. The reaction takes place in the Cristae. Glucose will be broken down and carbon dioxide and water are the products of the reaction. Carbon dioxide leaves the mitochondria. Part of the carbon dioxide is recycled again through chloroplasts. Break down of glucose also produces chemical energy that is used throughout the entire body for cell and enzyme functions such as being able to live. The energy is called ATP (adenosine triphosphate). It has three instead of just the one phospate present in DNA. The other two phosphates have high energy bonds. Water, like carbon dioxide, is recycled to other parts of the organism. It too can be eliminated. Once ATP is used for energy it loses a phosphate and becomes ADP.
- #3
Mk
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Heh, thanks a lot, but I already turned it in with a wrong guess. 
- #4
UrbanXrisis
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haha, this is a physics fourm. Not sure many people know biology
- #5
Mk
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Yeah, neither do I, I should've put it in Biology, but I wasn't thinkingUrbanXrisis said:
Neglect gravity other than that of water; neglect friction.
F1=ρgsh=1000*10*1*(1+4)=50000 N;
F1=ρgsh=1000*10*0.1*4=4000 N;
F3=50000-4000=46000 N?
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system
$$M(t) = M_{C} + m(t)$$
$$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$
$$P_i = Mv + u \, dm$$
$$P_f = (M + dm)(v + dv)$$
$$\Delta P = M \, dv + (v - u) \, dm$$
$$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$
$$F = u \frac{dm}{dt} = \rho A u^2$$
from conservation of momentum , the cannon recoils with the same force which it applies.
$$\quad \frac{dm}{dt}...
I was told forces are vectors so they can be divided into x and y components, but what about the normal force or the force of static friction? do you divide those into x and y components if say you had a block that was lying on an angled surface?
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