I am in the process of studying for my Biology final and am unclear on a few things. Honestly, nothing really makes sense to me. But it would help tremendously if someone could try and put these things into English...
What is Homeostasis?
What are radioisotopes?
Explain polarity and how it relates with bonding and water properties?
Dehydration/hydrolysis differences chemically?
What factors affect enzyme function?
Explain oxidation and reduction?
What is the difference between C3, C4, and CAM plants?
Okay, I'll stop there. Even if you can help me understand one question, I'd be very grateful.
Thank you so much.
What is Homeostasis?
What are radioisotopes?
Explain polarity and how it relates with bonding and water properties?
Dehydration/hydrolysis differences chemically?
What factors affect enzyme function?
Explain oxidation and reduction?
What is the difference between C3, C4, and CAM plants?
Okay, I'll stop there. Even if you can help me understand one question, I'd be very grateful.
Thank you so much.
-
1. Homeostasis is a process by which an organism maintains a constant, stable environment.
Ex:
If we're talking about the human body, deviations such as in blood sugar content or body temperature leads to subsequent responses such as release of insulin or glucagon or changes in blood vessel diameter.
2. Radioisotopes are atoms with unstable nuclei, resulting in emission of particles (I'm assuming since ur doing biology they'll mainly focus on alpha and beta particles, gamma rays, and half-life). Half-life is very important in dating the approximate age of relevant materials.
Ex:
Beta Decay: 6(Atomic Number)14(Mass number) C --> 7(Atomic Number) 14(Mass Number) N + -e
Alpha Decay: 222(A Number) 88 (Mass number) Ra --> 4 (A) 2 (M) He + 218 (A) 86 (M) Rn
etc
Basically alpha is helium, beta is an electron (so -1 atomic number) and make sure each side is balanced for atomic and mass number
3. If you've taken some chemistry you'll know that the hydrogen and oxygen do not share bonded electrons equally because the oxygen has a stronger "pull" towards it (if u want to know why feel free to email me). Based on the geometry of an H2O molecule, this causes water to have a positive end and a negative end (Think of a magnet) Thus, the positive and negative ends align and attract each other, leading to the molecules being difficult to break apart from each other, causing high melting and boiling points.
Ex:
If we're talking about the human body, deviations such as in blood sugar content or body temperature leads to subsequent responses such as release of insulin or glucagon or changes in blood vessel diameter.
2. Radioisotopes are atoms with unstable nuclei, resulting in emission of particles (I'm assuming since ur doing biology they'll mainly focus on alpha and beta particles, gamma rays, and half-life). Half-life is very important in dating the approximate age of relevant materials.
Ex:
Beta Decay: 6(Atomic Number)14(Mass number) C --> 7(Atomic Number) 14(Mass Number) N + -e
Alpha Decay: 222(A Number) 88 (Mass number) Ra --> 4 (A) 2 (M) He + 218 (A) 86 (M) Rn
etc
Basically alpha is helium, beta is an electron (so -1 atomic number) and make sure each side is balanced for atomic and mass number
3. If you've taken some chemistry you'll know that the hydrogen and oxygen do not share bonded electrons equally because the oxygen has a stronger "pull" towards it (if u want to know why feel free to email me). Based on the geometry of an H2O molecule, this causes water to have a positive end and a negative end (Think of a magnet) Thus, the positive and negative ends align and attract each other, leading to the molecules being difficult to break apart from each other, causing high melting and boiling points.
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