Question 1

Cells with a high rate of protein synthesis generally have a large number of:

Accepted Answer

A) Mitochondria 
B) Ribosomes 
C) Lysosomes 
D) Vacuoles 
A) Mitochondria 
B) Ribosomes 
C) Lysosomes 
D) Vacuoles

Question 2

Which of the following describes the set of metabolic reactions and processes that take place in cells to convert biochemical energy from nutrients into ATP?

Accepted Answer

A) Cellular respiration 
B) Glycolysis 
C) The Calvin cycle 
D) Photosynthesis 
A) Cellular respiration 
B) Glycolysis 
C) The Calvin cycle 
D) Photosynthesis

Question 3

Which of the following is the best definition of pleiotropy?

Accepted Answer

A) it occurs when there is a change in heterozygosity 
B) is occurs when two genes silence each other 
C) it occurs when one gene influences seemingly unrelated traits 
D) it occurs when two genes influence unrelated traits 
A) it occurs when there is a change in heterozygosity 
B) is occurs when two genes silence each other 
C) it occurs when one gene influences seemingly unrelated traits 
D) it occurs when two genes influence unrelated traits

Question 4

Which of the following best describes why polarity is the most important characteristic of water?

Accepted Answer

A) The benefits of polarity are hydrogen bonding, a high specific heat value, strong cohesive and adhesive properties, and its versatility as a solvent. 
B) The benefits of polarity are hydrogen bonding, a high specific heat value, weak cohesive and adhesive properties, and its versatility as a solvent. 
C) The benefits of polarity are covalent bonding, a high specific heat value, strong cohesive and adhesive properties, and its versatility as a solvent. 
D) The benefits of polarity are hydrogen bonding, a low specific heat value, strong cohesive and adhesive properties, and its versatility as a solvent. 
A) The benefits of polarity are hydrogen bonding, a high specific heat value, strong cohesive and adhesive properties, and its versatility as a solvent. 
B) The benefits of polarity are hydrogen bonding, a high specific heat value, weak cohesive and adhesive properties, and its versatility as a solvent. 
C) The benefits of polarity are covalent bonding, a high specific heat value, strong cohesive and adhesive properties, and its versatility as a solvent. 
D) The benefits of polarity are hydrogen bonding, a low specific heat value, strong cohesive and adhesive properties, and its versatility as a solvent.

Question 5

A recessive allele is only expressed as a phenotype in an organism if:

Accepted Answer

A) the organism is heterozygous dominant for that trait 
B) the organism is homozygous recessive for that trait 
C) the organism is homozygous dominant for that trait 
D) the organism is heterozygous recessive for that trait 
A) the organism is heterozygous dominant for that trait 
B) the organism is homozygous recessive for that trait 
C) the organism is homozygous dominant for that trait 
D) the organism is heterozygous recessive for that trait

Question 6

In the hierarchic system of classification, which of the following is least inclusive?

Accepted Answer

A) Order 
B) Phylum 
C) Species 
D) Genus 
A) Order 
B) Phylum 
C) Species 
D) Genus

Question 7

Choose the correct complementary bases for the DNA strand shown below.
T C A G G A

Accepted Answer

A) GACTTC 
B) AGTCCT 
C) CTGAAG 
D) TCAGGA 
A) GACTTC 
B) AGTCCT 
C) CTGAAG 
D) TCAGGA

Question 8

Which of the following about carbohydrates is incorrect?

Accepted Answer

A) They form the backbone of important molecules such as DNA and RNA. 
B) They contain only two elements: carbon and oxygen. 
C) Their most important functions are providing storage, structure, and energy. 
D) They are polymers of sugars. 
A) They form the backbone of important molecules such as DNA and RNA. 
B) They contain only two elements: carbon and oxygen. 
C) Their most important functions are providing storage, structure, and energy. 
D) They are polymers of sugars.

Question 9

In the Scientific Method, which of the following is a statement or explanation of certain events or happenings based on limited evidence?

Accepted Answer

A) Conclusion 
B) Hypothesis 
C) Experiment 
D) Observation 
A) Conclusion 
B) Hypothesis 
C) Experiment 
D) Observation

Question 10

Transcription takes place:

Accepted Answer

A) in the endoplasmic reticulum 
B) in the vacuole 
C) in the cytoplasm 
D) in the nucleus 
A) in the endoplasmic reticulum 
B) in the vacuole 
C) in the cytoplasm 
D) in the nucleus

Question 11

Which molecules are considered the most important in biology?

Accepted Answer

A) Carbohydrates, lipids, proteins, and amino acids 
B) Carbohydrates, lipids, proteins, and fatty acids 
C) Carbohydrates, lipids, proteins, and steroids 
D) Carbohydrates, lipids, proteins, and nucleic acids 
A) Carbohydrates, lipids, proteins, and amino acids 
B) Carbohydrates, lipids, proteins, and fatty acids 
C) Carbohydrates, lipids, proteins, and steroids 
D) Carbohydrates, lipids, proteins, and nucleic acids

Question 12

Where in the cell does active transport take place?

Accepted Answer

A) Nucleus 
B) Plasma membrane 
C) Mitochondria 
D) Chloroplast 
A) Nucleus 
B) Plasma membrane 
C) Mitochondria 
D) Chloroplast

Question 13

DNA and RNA are subunits of which type of biologic molecule?

Accepted Answer

A) Proteins 
B) Nucleic acids 
C) Carbohydrates 
D) Lipids 
A) Proteins 
B) Nucleic acids 
C) Carbohydrates 
D) Lipids

Question 14

Which organelle is responsible for storing, modifying and sending out products of the endoplasmic reticulum, such as proteins?

Accepted Answer

A) Golgi apparatus 
B) Ribosomes 
C) Lysosomes 
D) Endoplasmic reticulum 
A) Golgi apparatus 
B) Ribosomes 
C) Lysosomes 
D) Endoplasmic reticulum

Question 15

RNA is composed of:

Accepted Answer

A) one single stranded polynucleotide chain 
B) one double stranded polynucleotide chain 
C) two long polynucleotide chains twisted in a double helix 
D) two long parallel polynucleotide chains 
A) one single stranded polynucleotide chain 
B) one double stranded polynucleotide chain 
C) two long polynucleotide chains twisted in a double helix 
D) two long parallel polynucleotide chains

Question 16

Which of the following microtubules can be used to move the cell?

Accepted Answer

A) Centrioles 
B) Flagella 
C) Centrosomes 
D) Filaments 
A) Centrioles 
B) Flagella 
C) Centrosomes 
D) Filaments

Question 17

In the hierarchic system of classification, which of the following is most inclusive?

Accepted Answer

A) Kingdom 
B) Species 
C) Class 
D) Order 
A) Kingdom 
B) Species 
C) Class 
D) Order

Question 18

Which type of protein acts to catalyze different reactions or processes?

Accepted Answer

A) Steroids 
B) Hormones 
C) Amino acids 
D) Enzymes 
A) Steroids 
B) Hormones 
C) Amino acids 
D) Enzymes

Question 19

Polymers of which of the following make up proteins?

Accepted Answer

A) Steroids 
B) Amino acids 
C) Nucleic acids 
D) Enzymes 
A) Steroids 
B) Amino acids 
C) Nucleic acids 
D) Enzymes

Question 20

What function do cholesterol molecules serve within the cell membrane?

Accepted Answer

A) They act as transport highways for molecular movement into and out of the cell. 
B) They allow for carbohydrate chains to extend beyond the cell membrane to communicate with other cells. 
C) They stabilize the flexible bilayer structure to prevent breakage. 
D) They allow the cell membrane to be selectively permeable by making the bilayer structure more flexible. 
A) They act as transport highways for molecular movement into and out of the cell. 
B) They allow for carbohydrate chains to extend beyond the cell membrane to communicate with other cells. 
C) They stabilize the flexible bilayer structure to prevent breakage. 
D) They allow the cell membrane to be selectively permeable by making the bilayer structure more flexible.

Cells with a high rate of protein synthesis generally have a large number of:

Which of the following describes the set of metabolic reactions and processes that take place in cells to convert biochemical energy from nutrients into ATP?

Which of the following is the best definition of pleiotropy?

Which of the following best describes why polarity is the most important characteristic of water?

A recessive allele is only expressed as a phenotype in an organism if:

In the hierarchic system of classification, which of the following is least inclusive?

Choose the correct complementary bases for the DNA strand shown below. T C A G G A

Which of the following about carbohydrates is incorrect?

In the Scientific Method, which of the following is a statement or explanation of certain events or happenings based on limited evidence?

Transcription takes place:

Which molecules are considered the most important in biology?

Where in the cell does active transport take place?

DNA and RNA are subunits of which type of biologic molecule?

Which organelle is responsible for storing, modifying and sending out products of the endoplasmic reticulum, such as proteins?

RNA is composed of:

Which of the following microtubules can be used to move the cell?

In the hierarchic system of classification, which of the following is most inclusive?

Which type of protein acts to catalyze different reactions or processes?

Polymers of which of the following make up proteins?

What function do cholesterol molecules serve within the cell membrane?

HESI-A2-Chemistry

HESI-A2-Math

HESI-A2-Vocabulary

HESI-A2-Reading

HESI-A2-Grammar

HESI-A2-Physics

HESI-A2-Anatomy & Physiology

Filters

Exam 6: HESI-A2-Biology

Cells with a high rate of protein synthesis generally have a large number of:

Which of the following describes the set of metabolic reactions and processes that take place in cells to convert biochemical energy from nutrients into ATP?

Which of the following is the best definition of pleiotropy?

Which of the following best describes why polarity is the most important characteristic of water?

A recessive allele is only expressed as a phenotype in an organism if:

In the hierarchic system of classification, which of the following is least inclusive?

Choose the correct complementary bases for the DNA strand shown below. T C A G G A

Which of the following about carbohydrates is incorrect?

In the Scientific Method, which of the following is a statement or explanation of certain events or happenings based on limited evidence?

Transcription takes place:

Which molecules are considered the most important in biology?

Where in the cell does active transport take place?

DNA and RNA are subunits of which type of biologic molecule?

Which organelle is responsible for storing, modifying and sending out products of the endoplasmic reticulum, such as proteins?

RNA is composed of:

Which of the following microtubules can be used to move the cell?

In the hierarchic system of classification, which of the following is most inclusive?

Which type of protein acts to catalyze different reactions or processes?

Polymers of which of the following make up proteins?

What function do cholesterol molecules serve within the cell membrane?

HESI-A2-Chemistry

HESI-A2-Math

HESI-A2-Vocabulary

HESI-A2-Reading

HESI-A2-Grammar

HESI-A2-Physics

HESI-A2-Anatomy & Physiology

Filters