Human Biology Chapter 2 Online Quiz
A unknown liquid x, and Ph of 8, a different unknown liquid y has a ph of 12, liquid X is ————— than liquid y
10,000 times more acidic
How many different elements are present in 3C6H1206
3 elements
A atom has an atomic mass of 20 and an atomic number of 15, how many neutrons does it have
5
Which of the following is a characteristic of acids
Acids have a high concentration of hydrogen ions
Which of the following is found in the cell walls of plants
Cellulose
Identify the molecule that has many groups of HO, Ch3, OH, and Ch2 groups?
Cholesterol
Maltese is a type of
Enzyme
An unknown compound was analyzed and found to contain fatty acids and glycerol. What isis?
Fat
Which of the following substances is hydrophobic and functions as a storage form of energy
Fats
Which description best describes secondary protein structure
Helix or pleated sheet
Which of the following is the weakest bond
Hydrogen bond
Which type of bond is shown in the future (looks like a cube molecule)`
Hydrogen bond
Which of the following is not a property of water
Low heat of vaporization
Which molecule forms cell membranes and it's typically drawn as a sphere with two tails attached
Phospholipid
The atomic mass is equal to the number of
Portions and neutrons
Enzymes are typically a type of
Protein
Many monomers of amino acids linked together through peptide bonds form a
Protein
Which of the following is a function of ATP
Provides chemical energy for cellular functions
Which of the following is a difference between DNA and RNA
RNA has the base uracil, while DNA has the base thymine
What is H20
Single covalent bond
Which of the following is a function of proteins
Speeds up chemical reactions
What strand of DNA would be the opposite of the ATTGGC strand of DNA
TAACCG
What distinguishes one element from another
The # of protons
What distinguishes one isotope from another
The number of neutrons
An ionic bond involves the ——— between 2 or more atoms
Transfer of electrons
