Human Biology Chapter 2 Online Quiz

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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


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