Elements and ions building blocks of matter
Together these four elements make up more than 95 percent of the body's mass.
What are Oxygen, carbon, hydrogen, and nitrogen
Which of the following is a molecule, but not a compound? H20, 2H H2 H+?
What is H2?
The energy stored in a foot of snow on a steep roof is ________.
What is potential energy?
Chewing a bite of bread mixes it with saliva and facilitates its chemical breakdown. This is most likely due to the fact that ________.
Saliva contains enzymes
What does ATP Stand for?
Adenosine Tri Phosphate
This is the smallest unit of an element that still retains the distinctive behavior of tat element.
What is an Atom
A molecule of ammonia contains one atom of nitrogen and three atoms of hydrogen. These are linked with ________.
What is a polar covalent bond?
The bonding of calcium, phosphorus, and other elements produces mineral crystals that are found in bone. This is an example of a(n) ________ reaction.
What is synthesis?
CH4 is methane. This compound is ________
What is Organic?
What does ATP do?
The characteristic that give an element its distinctive properties is the number of ______
What are protons?
When an atom donates an electron to another atom, it becomes
What is an ion?
AB→A+B is a general notation for a(n) ________ reaction.
What is decomposition?
What organic compound do brain cells primarily rely on for fuel?
What is Glucose?
When ATP is burned it turns into...
Adenosine Di Phosphate
On the periodic table of the elemtns, mercury (Hg) has an atomoic nubmer of 80 and a mass number of 200.59. It has seven stable isotopes. The most abundant of these probably have _____.
More than 80 neutrons each.
A substance formed of crystals of equal numbers of cations and anions held together by ionic bonds is called a(n) ________.
What is salt?
________ reactions release energy.
What are Catabolic, exergonic, and decomposition?
A pentose sugar is a part of the monomer used to build which type of macromolecule?
What are Nucleic Acids?
Which of the following is a functional group that is part of a building block of proteins?
What is are amino acids?
Nitrogen has an atomic number of seven. How many electron shells does it likely have?
What is two?
Which of the following statements about chemical bonds is true?
Ionic bonds are stronger than covalent bonds.
Hydrogen bonds occur between two atoms of hydrogen.
Bonding readily occurs between nonpolar and polar molecules.
A molecule of water is unlikely to bond with an ion.
Ionic bonds are stronger than covalent bonds.
Which of the following combinations of atoms is most likely to result in a chemical reaction?
Hydrogen and hydrogen
In DNA, nucleotide bonding forms a compound with a characteristic shape known as a(n) ________.
What is a double helix?
Ty is three years old and as a result of a “stomach bug” has been vomiting for about 24 hours. His blood pH is 7.48. What does this mean?
His blood type is slightly Alkaline.