Question 1

Ribosomes are directly associated with which process?

Accepted Answer

A) Transcription 
B) Translocation 
C) Translation 
D) Transference 
A) Transcription 
B) Translocation 
C) Translation 
D) Transference

Question 2

What harvests energy from sunlight to rearrange molecules into sugar?

Accepted Answer

A) Chloroplasts 
B) Mitochondria 
C) Nucleus 
D) Lysosome 
A) Chloroplasts 
B) Mitochondria 
C) Nucleus 
D) Lysosome

Question 3

Were there any eukaryotic cells on Earth 1.5 billion years ago?

Accepted Answer

A) Yes,they first appear in the fossil record around 3.5 billion years ago. 
B) Yes,they first appear in the fossil record around 2 billion years ago. 
C) No,they do not appear in the fossil record until around 1 billion million years ago. 
D) No,they do not appear in the fossil record until around 500 million years ago. 
A) Yes,they first appear in the fossil record around 3.5 billion years ago. 
B) Yes,they first appear in the fossil record around 2 billion years ago. 
C) No,they do not appear in the fossil record until around 1 billion million years ago. 
D) No,they do not appear in the fossil record until around 500 million years ago.

Question 4

Your red blood cells behave in a similar manner as the bags in this experiment.What might happen to your red blood cells if you were suddenly unable to regulate the solute concentration of your blood and it began to rise?

Accepted Answer

A) Your blood cells would stay the same size but could no longer carry oxygen. 
B) Your blood cells would stay the same size but could no longer release the oxygen they carry. 
C) Your blood cells would enlarge and may rupture. 
D) Your blood cells would shrivel. 
A) Your blood cells would stay the same size but could no longer carry oxygen. 
B) Your blood cells would stay the same size but could no longer release the oxygen they carry. 
C) Your blood cells would enlarge and may rupture. 
D) Your blood cells would shrivel.

Question 5

Where is the completed ribosome assembled?

Accepted Answer

A) In the cytoplasm 
B) In the endoplasmic reticulum 
C) In the nucleolus 
D) In the nucleus 
A) In the cytoplasm 
B) In the endoplasmic reticulum 
C) In the nucleolus 
D) In the nucleus

Question 6

What does the lowercase "r" in rRNA stand for?

Accepted Answer

A) Ribose 
B) Replacement 
C) Ribosomal 
D) Reticulum 
A) Ribose 
B) Replacement 
C) Ribosomal 
D) Reticulum

Question 7

Which organelle functions to break down and recycle large molecules?

Accepted Answer

A) Ribosome 
B) Golgi apparatus 
C) Lysosome 
D) Chloroplast 
A) Ribosome 
B) Golgi apparatus 
C) Lysosome 
D) Chloroplast

Question 8

What is the role of the contractile vacuole in a protist?

Accepted Answer

A) Cell division 
B) Movement of the flagellum 
C) Water storage 
D) Excess water removal 
A) Cell division 
B) Movement of the flagellum 
C) Water storage 
D) Excess water removal

Question 9

Why do bacteria have ribosomes?

Accepted Answer

Bacteria lack a nucleus to house the DNA

Question 10

What is the role of the histone proteins of the chromatin?

Accepted Answer

A) Contains the instructions for how to build a protein 
B) Acts as a spool around which the DNA is wrapped 
C) Assembles the ribosome subunits 
D) Maintains the structural integrity of the nuclear membrane 
A) Contains the instructions for how to build a protein 
B) Acts as a spool around which the DNA is wrapped 
C) Assembles the ribosome subunits 
D) Maintains the structural integrity of the nuclear membrane

Question 11

Chloroplasts and mitochondria share something with the nucleus that the other organelles do not.What is this shared function or component?

Accepted Answer

A) They are the only organelles wrapped in a lipid-based membrane. 
B) They are the only organelles that produce ATP. 
C) They are the only organelles that contain DNA. 
D) They are the only organelles not found in bacteria. 
A) They are the only organelles wrapped in a lipid-based membrane. 
B) They are the only organelles that produce ATP. 
C) They are the only organelles that contain DNA. 
D) They are the only organelles not found in bacteria.

Question 12

Movement down a concentration gradient means that the substance is moving ________.

Accepted Answer

A) from an area of high concentration to an area of low concentration 
B) from an area of low concentration to an area of high concentration 
C) from areas of either high or low concentration to an area of equal concentration 
D) from an area of equal concentration to an area of high concentration 
A) from an area of high concentration to an area of low concentration 
B) from an area of low concentration to an area of high concentration 
C) from areas of either high or low concentration to an area of equal concentration 
D) from an area of equal concentration to an area of high concentration

Question 13

What is the definition of endocytosis?

Accepted Answer

A) The entire plasma membrane turns itself inside out. 
B) It is the digestion of larger molecules that were brought into the cell. 
C) It is the bulk transport of materials into the cell. 
D) It is the transport of a substance into the cell coupled with the transport of a substance out of the cell. 
A) The entire plasma membrane turns itself inside out. 
B) It is the digestion of larger molecules that were brought into the cell. 
C) It is the bulk transport of materials into the cell. 
D) It is the transport of a substance into the cell coupled with the transport of a substance out of the cell.

Question 14

Plant cells,fungal cells,and even bacterial cells have a cell wall.What is the primary difference between these similar structures?

Accepted Answer

A) They are made of different materials. 
B) They perform different functions. 
C) They are found in different portions of the cell. 
D) There is no difference; they are fundamentally identical. 
A) They are made of different materials. 
B) They perform different functions. 
C) They are found in different portions of the cell. 
D) There is no difference; they are fundamentally identical.

Question 15

If you were looking at a cell under a powerful microscope,what would tell you that it is a eukaryotic cell?

Accepted Answer

A) It has a cell membrane. 
B) It has DNA. 
C) It has plasmids. 
D) It is moving. 
A) It has a cell membrane. 
B) It has DNA. 
C) It has plasmids. 
D) It is moving.

Question 16

Which would most likely pass unaided through a plasma membrane?

Accepted Answer

A) Something small and nonpolar,like nitrogen gas 
B) Something small and dipolar,like a water molecule 
C) Something small and charged,like an ion 
D) Something large,like a glucose molecule 
A) Something small and nonpolar,like nitrogen gas 
B) Something small and dipolar,like a water molecule 
C) Something small and charged,like an ion 
D) Something large,like a glucose molecule

Question 17

How is the nuclear membrane different from the plasma membrane?

Accepted Answer

A) The nuclear membrane is completely sealed,whereas the plasma membrane is not. 
B) The nuclear membrane is chemically active,whereas the plasma membrane is not. 
C) The nuclear membrane has two phospholipid bilayers,whereas the plasma membrane has one. 
D) The nuclear membrane has no structural proteins,whereas the plasma membrane has structural proteins. 
A) The nuclear membrane is completely sealed,whereas the plasma membrane is not. 
B) The nuclear membrane is chemically active,whereas the plasma membrane is not. 
C) The nuclear membrane has two phospholipid bilayers,whereas the plasma membrane has one. 
D) The nuclear membrane has no structural proteins,whereas the plasma membrane has structural proteins.

Ribosomes are directly associated with which process?

What harvests energy from sunlight to rearrange molecules into sugar?

Were there any eukaryotic cells on Earth 1.5 billion years ago?

Your red blood cells behave in a similar manner as the bags in this experiment.What might happen to your red blood cells if you were suddenly unable to regulate the solute concentration of your blood and it began to rise?

Where is the completed ribosome assembled?

What does the lowercase "r" in rRNA stand for?

Which organelle functions to break down and recycle large molecules?

What is the role of the contractile vacuole in a protist?

Why do bacteria have ribosomes?

What is the role of the histone proteins of the chromatin?

Chloroplasts and mitochondria share something with the nucleus that the other organelles do not.What is this shared function or component?

Movement down a concentration gradient means that the substance is moving ________.

What is the definition of endocytosis?

Plant cells,fungal cells,and even bacterial cells have a cell wall.What is the primary difference between these similar structures?

If you were looking at a cell under a powerful microscope,what would tell you that it is a eukaryotic cell?

Which would most likely pass unaided through a plasma membrane?

How is the nuclear membrane different from the plasma membrane?

An Introduction to the Science of Life

The Chemistry of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 3: The Cell: The Fundamental Unit of Life

Ribosomes are directly associated with which process?

What harvests energy from sunlight to rearrange molecules into sugar?

Were there any eukaryotic cells on Earth 1.5 billion years ago?

Your red blood cells behave in a similar manner as the bags in this experiment.What might happen to your red blood cells if you were suddenly unable to regulate the solute concentration of your blood and it began to rise?

Where is the completed ribosome assembled?

What does the lowercase "r" in rRNA stand for?

Which organelle functions to break down and recycle large molecules?

What is the role of the contractile vacuole in a protist?

Why do bacteria have ribosomes?

What is the role of the histone proteins of the chromatin?

Chloroplasts and mitochondria share something with the nucleus that the other organelles do not.What is this shared function or component?

Movement down a concentration gradient means that the substance is moving ________.

What is the definition of endocytosis?

Plant cells,fungal cells,and even bacterial cells have a cell wall.What is the primary difference between these similar structures?

If you were looking at a cell under a powerful microscope,what would tell you that it is a eukaryotic cell?

Which would most likely pass unaided through a plasma membrane?

How is the nuclear membrane different from the plasma membrane?

An Introduction to the Science of Life

The Chemistry of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 1: Microscopic Organisms

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters