Atomic Structure
What element is mostly found in the human body?
Oxygen
What is another type of attractive force besides ionic and covalent bonds?
Hydrogen bond.
What does the atomic # mean?
Number of atoms.
What is Catabolism?
Chemical reactions that break down larger food molecules into smaller chemical units
What element triggers muscle contractions?
What is an isotope?
Elements that contain the same number of protons but different number of neutrons.
Would ice or steam have more hydrogen bonds?
Ice
What destroys matter?
Matter cannot be created or destroyed.
Anabolism involves what type of reactions?
chemical reactions
How many elements naturally occur on earth?
92
What do electrons form around the nucleus?
A cloud
When water and oil come together, what kind of bond do they form?
They do not form bonds with each other.
Water is a compound (H2O), what can it broken down into?
Into hydrogen and oxygen atoms in a 2:1 ratio.
What is the key chemical reaction in catabolism?
hydrolysis
How would scientists use the term matter?
To describe materials or substances around us.
What does Bohr's Model represent?
Resembles planets revolving around the sun. Like electrons revolving around a nucleus.
Are many lipids nonpolar?
Yes, many lipids are non-polar.
Why did Scientists name Copper (Cu), is there is no "u" in the word? And why are other elements formatted similarily?
Scientists often assign a symbol to each element using the Latin name's first few letters.
What type of energy is released by catabolism?
What type of molecule is catabolic energy recaptured/transferred as?
ATP molecule
What is the octet rule?
Atoms with fewer than 8 or more electrons in the outer energy level will attempt to lose, gain, or share electrons with other atoms to achieve stability.
Is an individual hydrogen bond weak or strong?
Weak.
How many "trace elements" make up less than .1% of body weight
15
Another word for condensation is...?
Hydration synthesis
What does ATP stand for?
Adenosine Triphosphate