1001 LSU (DR. NITA, FALL) BIOLOGY
TEST 1-3, COMBINED LATEST VERSION
2024/25
Table salt dissolves in water by
a. The hydrogen bonds formed between oxygen of water molecule and hydrogen of the
hydroxyl groups in table salt
b. Sodium chloride ions that contain oppositely charged ions that attract the oxygen and
hydrogen of water molecules.
c. Sodium chloride that contains hydroxyl residues that attract the oxygen and hydrogen
of water molecules. d. All of the above
- CORRECT ANSWER Sodium chloride ions that contain oppositely charged ions that
attract the oxygen and hydrogen of water molecules.
Inorganic molecules ____
a. contain carbon
b. lack carbon
c. are organic molecules
d. none of the above
- CORRECT ANSWER Lack carbon
What is lactose?
a. A polysaccharide
b. A disaccharide containing one glucose and one galactose molecules
c. A monosaccharide containing two glucose molecules
d. A disaccharide containing two glucose molecules
- CORRECT ANSWER A disaccharide containing one glucose and one galactose
molecules
How many carbon atoms are in the following molecule?
a. none
b. twelve
c. thirteen
d. fourteen
- CORRECT ANSWER Thirteen (I cant find the picture)
Choosing liquid based cooking oils, that are liquid at room temperature
a. Can reduce heart diseases
b. rich in unsaturated healthy fats
c. increases more triglycerides and Low-density lipoproteins
d. Both a and b are true
- CORRECT ANSWER Both a and b are true about liquid based cooking oils
,The structure shown below is:
a. Polysaccharide chitin in exoskeleton of crabs
b. Polysaccharide starch in exoskeleton of crabs
c. Polysaccharide chitin in potatoes
d. Polysaccharide cellulose in plant cell
- CORRECT ANSWER Polysaccharide cellulose in plant cell (Cant get picture)
Dr. Ono has a very dizzy morning and feels dehydrated. What can he dissolve in water
from his kitchen to boost his body to rehydrate quickly?
a. A pinch of Salt
b. A pinch of Glucose
c. A dash of olive oil
d. Only a and b
- CORRECT ANSWER Only A and B: a pinch of salt and a pinch of glucose
If there were three carbon atom from planet mars trying to make a carbohydrate on
earth, then how many carbons (C), hydrogens (H) and oxygen (O) would be in the
carbohydrate molecule?
a. C4 H12 O4
b. C3 H6 O3
c. C3 H8 O12
d. C3 H3 O3
- CORRECT ANSWER C3 H6 O3
How many bonds can the following oxygen molecule make oxygen gas (O2)
a. A single double bond
b. One single bond
c. Two single bonds
d. A single triple bond
- CORRECT ANSWER A single double bond
Which among the following molecules are nucleic acid?
a. Ribonucleic acid (RNA)
b. ribose
c. tri-phosphate
d. uracil
e. lipid - CORRECT ANSWER Ribonucleic acid (RNA)
RNA is the genetic material in some _________ but not in _____________.
a. Viruses but not in living cell
b. Bacterial but not in viruses
c. Plants but not in animals
d. Animals but not in viruses
- CORRECT ANSWER Viruses but not in living cell
Which of the following are made of one or more nucleotides?
, a. DNA
b. RNA
c. dATP
d. rUTP
e. All the above
- CORRECT ANSWER All the above: DNA, RNA, dATP, rUTP
Nucleotides are composed of __________.
a. phosphates
b. a ribose or a deoxyribose
c. a nitrogenous base
d. All the above
e. Only c and a
- CORRECT ANSWER All the above: phosphates, a ribose or a deoxyribose, a
nitrogenous base
The structure below attaches to 1'C atom of a ribose sugar. What is the structure?
a. Nitrogenous base
b. Purine
c. Pyrimidine
d. Both a and c
e. Both a and b
- CORRECT ANSWER Both a and b: Nitrogenous base and Purine
Which statement is correct about the structure below.
a. Can occur in RNA
b. Can occur in a dNTPs
c. Is a pentose sugar
d. Only b and c are correct
e. All a, b and c are correct.
- CORRECT ANSWER Only b and c: Can occur in a dNTPs; Is a pentose sugar
A 3'end of a nucleotide means _______.
a. 3' carbon of pentose attached to a nitrogen group
b. 3' carbon of the pentose attached to a phosphate group
c. 3' carbon of the pentose attached to a hydroxyl group
d. 3' carbon of the pentose attached to a carbonyl group
e. None of the above
- CORRECT ANSWER 3' carbon of the pentose attached to a hydroxyl group
A single polynucleotide strand is a polymer of nucleotides which are linked by
_________.
a. Hydrogen bonds created by dehydration/condensation reaction.
b. Phosphodiester bonds created by dehydration/condensation reaction.
c. Peptidyl bonds created by dehydration/ condensation reaction.
d. Carbonyl bonds created by dehydration/condensation reaction.
TEST 1-3, COMBINED LATEST VERSION
2024/25
Table salt dissolves in water by
a. The hydrogen bonds formed between oxygen of water molecule and hydrogen of the
hydroxyl groups in table salt
b. Sodium chloride ions that contain oppositely charged ions that attract the oxygen and
hydrogen of water molecules.
c. Sodium chloride that contains hydroxyl residues that attract the oxygen and hydrogen
of water molecules. d. All of the above
- CORRECT ANSWER Sodium chloride ions that contain oppositely charged ions that
attract the oxygen and hydrogen of water molecules.
Inorganic molecules ____
a. contain carbon
b. lack carbon
c. are organic molecules
d. none of the above
- CORRECT ANSWER Lack carbon
What is lactose?
a. A polysaccharide
b. A disaccharide containing one glucose and one galactose molecules
c. A monosaccharide containing two glucose molecules
d. A disaccharide containing two glucose molecules
- CORRECT ANSWER A disaccharide containing one glucose and one galactose
molecules
How many carbon atoms are in the following molecule?
a. none
b. twelve
c. thirteen
d. fourteen
- CORRECT ANSWER Thirteen (I cant find the picture)
Choosing liquid based cooking oils, that are liquid at room temperature
a. Can reduce heart diseases
b. rich in unsaturated healthy fats
c. increases more triglycerides and Low-density lipoproteins
d. Both a and b are true
- CORRECT ANSWER Both a and b are true about liquid based cooking oils
,The structure shown below is:
a. Polysaccharide chitin in exoskeleton of crabs
b. Polysaccharide starch in exoskeleton of crabs
c. Polysaccharide chitin in potatoes
d. Polysaccharide cellulose in plant cell
- CORRECT ANSWER Polysaccharide cellulose in plant cell (Cant get picture)
Dr. Ono has a very dizzy morning and feels dehydrated. What can he dissolve in water
from his kitchen to boost his body to rehydrate quickly?
a. A pinch of Salt
b. A pinch of Glucose
c. A dash of olive oil
d. Only a and b
- CORRECT ANSWER Only A and B: a pinch of salt and a pinch of glucose
If there were three carbon atom from planet mars trying to make a carbohydrate on
earth, then how many carbons (C), hydrogens (H) and oxygen (O) would be in the
carbohydrate molecule?
a. C4 H12 O4
b. C3 H6 O3
c. C3 H8 O12
d. C3 H3 O3
- CORRECT ANSWER C3 H6 O3
How many bonds can the following oxygen molecule make oxygen gas (O2)
a. A single double bond
b. One single bond
c. Two single bonds
d. A single triple bond
- CORRECT ANSWER A single double bond
Which among the following molecules are nucleic acid?
a. Ribonucleic acid (RNA)
b. ribose
c. tri-phosphate
d. uracil
e. lipid - CORRECT ANSWER Ribonucleic acid (RNA)
RNA is the genetic material in some _________ but not in _____________.
a. Viruses but not in living cell
b. Bacterial but not in viruses
c. Plants but not in animals
d. Animals but not in viruses
- CORRECT ANSWER Viruses but not in living cell
Which of the following are made of one or more nucleotides?
, a. DNA
b. RNA
c. dATP
d. rUTP
e. All the above
- CORRECT ANSWER All the above: DNA, RNA, dATP, rUTP
Nucleotides are composed of __________.
a. phosphates
b. a ribose or a deoxyribose
c. a nitrogenous base
d. All the above
e. Only c and a
- CORRECT ANSWER All the above: phosphates, a ribose or a deoxyribose, a
nitrogenous base
The structure below attaches to 1'C atom of a ribose sugar. What is the structure?
a. Nitrogenous base
b. Purine
c. Pyrimidine
d. Both a and c
e. Both a and b
- CORRECT ANSWER Both a and b: Nitrogenous base and Purine
Which statement is correct about the structure below.
a. Can occur in RNA
b. Can occur in a dNTPs
c. Is a pentose sugar
d. Only b and c are correct
e. All a, b and c are correct.
- CORRECT ANSWER Only b and c: Can occur in a dNTPs; Is a pentose sugar
A 3'end of a nucleotide means _______.
a. 3' carbon of pentose attached to a nitrogen group
b. 3' carbon of the pentose attached to a phosphate group
c. 3' carbon of the pentose attached to a hydroxyl group
d. 3' carbon of the pentose attached to a carbonyl group
e. None of the above
- CORRECT ANSWER 3' carbon of the pentose attached to a hydroxyl group
A single polynucleotide strand is a polymer of nucleotides which are linked by
_________.
a. Hydrogen bonds created by dehydration/condensation reaction.
b. Phosphodiester bonds created by dehydration/condensation reaction.
c. Peptidyl bonds created by dehydration/ condensation reaction.
d. Carbonyl bonds created by dehydration/condensation reaction.
