問題一覧
1
Which of the statements is false?
Water molecules are formed by hydrolysis
2
Which type of bond is found between Nat and Clions in NaCl?
Ionic bond
3
Which are the primary molecules making up plasma membranes in cells?
Lipids
4
Which of the following statements about water is true?
Water plays an important role in dehydration synthesis.
5
Which of the following statements about the atom 12/6c is false?
It has 12 neutrons in its nucleus
6
Which type of molecule contains the alcohol glycerol?
Phospholipids
7
The equation below is what type of reaction? Molecule AB → Molecule A + Molecule BThe equation below is what type of reaction? Molecule AB → Molecule A + Molecule B
Decomposition reaction
8
Which type of molecule NEVER contains a phosphate group?
Triglycerides
9
Which molecule is composed of a chain of amino acids?
Protein
10
What is the type of bond holding hydrogen and oxygen atoms in the H20 molecule?
covalent bond
11
Which of the following statements is true regarding organic molecules?
Carbohydrates are a large and diverse group of molecules composed of carbon, hydrogen, and oxygen. Examples include glycogen and starch
12
What do genes consist of?
Nucleic acids
13
A scientist wants to perform a test that will indicate whether a nucleic acid sample is composed of RNA.Testing for the presence of which of the following is most appropriate in this situation?
uracil
14
Identify the following reaction: Glucose + Fructose →Sucrose + Water
dehydration synthesis reaction
15
Which bond is best described as an intermolecular attraction due to partial charges formed in polar covalent bonds?
Hydrogen bond
16
Protein structure is directly related to the function of the protein. Which of the following is an accurate description of the level of structure in a protein?
Tertiary protein structure is the overall three-dimensional shape involving interactions between various amino acids and their side groups.
17
The shared electrons that form a covalent bond are always shared equally.
Fasle
18
The structure of an atom includes which of the following?
A nucleus with positively charged protons and uncharged neutrons, with orbiting negatively charged electrons
19
Which of the following is true about ATP
ATP stores energy in phosphate bonds
20
Fluids in the stomach have a pH of 1 or 2. This would indicate which of the following?
Numerous Ht ions and a low pH
21
Which of the following pairs is mismatched?
KH2PO4 - K+ + H2PO4 acidKH2PO4 - K+ + H2PO4 acid
22
Which of the following describes inorganic molecules?
Small and structurally simple compounds which typically lack carbon and in which ionic bonds may play an important role
23
Which type of molecule contains -NH2 groups?
Protein and nucleic acid
24
Which of the following statements is false?
Water molecules are formed by hydrolysis
25
Starch, dextran, glycogen, and cellulose are polymers of
Glucose