Question 1

Why do bacteria have ribosomes?

Accepted Answer

Bacteria lack a nucleus to house the DNA

Question 2

Identify the prokaryotic organism from the list below.

Accepted Answer

A) Fungus 
B) Bacteria 
C) Animal 
D) Protist 
A) Fungus 
B) Bacteria 
C) Animal 
D) Protist

Question 3

Which reaction represents cellular respiration?

Accepted Answer

A) Sugar + Oxygen → Carbon dioxide+ Water + ATP 
B) Carbon dioxide + Water + ATP → Sugar + Oxygen 
C) Oxygen + Carbon dioxide → Sugar + Water + ATP 
D) Water + ATP → Carbon dioxide + Sugar 
A) Sugar + Oxygen → Carbon dioxide+ Water + ATP 
B) Carbon dioxide + Water + ATP → Sugar + Oxygen 
C) Oxygen + Carbon dioxide → Sugar + Water + ATP 
D) Water + ATP → Carbon dioxide + Sugar

Question 4

What might happen to your red blood cells if your blood solute concentration began to fall rapidly below normal?

Accepted Answer

A) Your blood cells would stay the same size. 
B) Your blood cells would enlarge and could rupture because water would move into the cells via osmosis. 
C) Your blood cells would shrivel because water would move out of the cells via osmosis. 
D) We do not have enough information to answer this question. 
A) Your blood cells would stay the same size. 
B) Your blood cells would enlarge and could rupture because water would move into the cells via osmosis. 
C) Your blood cells would shrivel because water would move out of the cells via osmosis. 
D) We do not have enough information to answer this question.

Question 5

Which of the following cells contain a plasma membrane?

Accepted Answer

A) Animal cells only 
B) Animal cells and plant cells only 
C) Animal cells, plant cells, and bacterial cells 
D) Bacterial cells only 
A) Animal cells only 
B) Animal cells and plant cells only 
C) Animal cells, plant cells, and bacterial cells 
D) Bacterial cells only

Question 6

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 1.8 billion years ago. 
C) No, they do not appear in the fossil record until around 1 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 1.8 billion years ago. 
C) No, they do not appear in the fossil record until around 1 million years ago. 
D) No, they do not appear in the fossil record until around 500 million years ago.

Question 7

The cytoskeleton has several primary functions.The first and most obvious is that it acts as an interior skeleton that supports the rest of the cell.What is another function of the cytoskeleton?

Accepted Answer

A) It provides a communication network whereby chemo-electrical signals can be sent from one area of the cell to another. 
B) It creates a durable outer covering to increase the strength and rigidity of the cell. 
C) It provides a series of tracks along which vesicles can move throughout the cell. 
D) It connects one cell to another. 
A) It provides a communication network whereby chemo-electrical signals can be sent from one area of the cell to another. 
B) It creates a durable outer covering to increase the strength and rigidity of the cell. 
C) It provides a series of tracks along which vesicles can move throughout the cell. 
D) It connects one cell to another.

Question 8

Which statement best describes passive transport?

Accepted Answer

A) A substance goes from an area of low concentration to an area of high concentration, and this releases energy. 
B) A substance goes from an area of high concentration to an area of low concentration, and this requires energy. 
C) A substance goes from an area of low concentration to an area of high concentration, and this requires energy. 
D) A substance goes from an area of high concentration to an area of low concentration, and this releases energy. 
A) A substance goes from an area of low concentration to an area of high concentration, and this releases energy. 
B) A substance goes from an area of high concentration to an area of low concentration, and this requires energy. 
C) A substance goes from an area of low concentration to an area of high concentration, and this requires energy. 
D) A substance goes from an area of high concentration to an area of low concentration, and this releases energy.

Question 9

Select the cellular structure that can be found in both plant and animal cells.

Accepted Answer

A) Chloroplast 
B) Mitochondria 
C) Cell wall 
D) Vacuole 
A) Chloroplast 
B) Mitochondria 
C) Cell wall 
D) Vacuole

Question 10

Which of the following statements is correct regarding DNA and RNA?

Accepted Answer

A) DNA remains in the nucleus at all times; RNA is produced in the nucleus but then leaves the nucleus. 
B) RNA remains in the nucleus at all times; DNA is produced in the nucleus but then leaves the nucleus. 
C) DNA and RNA both leave the nucleus after being produced. 
D) DNA and RNA both stay in the nucleus after being produced. 
A) DNA remains in the nucleus at all times; RNA is produced in the nucleus but then leaves the nucleus. 
B) RNA remains in the nucleus at all times; DNA is produced in the nucleus but then leaves the nucleus. 
C) DNA and RNA both leave the nucleus after being produced. 
D) DNA and RNA both stay in the nucleus after being produced.

Question 11

Which of the following statements is true in prokaryotic organisms?

Accepted Answer

A) Transcription occurs in the nucleus, and translation occurs in the cytoplasm. 
B) Transcription and translation both occur in the nucleus. 
C) Transcription and translation both occur in the cytoplasm. 
D) Prokaryotic organisms do not carry out transcription or translation, only eukaryotic cells do. 
A) Transcription occurs in the nucleus, and translation occurs in the cytoplasm. 
B) Transcription and translation both occur in the nucleus. 
C) Transcription and translation both occur in the cytoplasm. 
D) Prokaryotic organisms do not carry out transcription or translation, only eukaryotic cells do.

Question 12

Substances are often packaged into small ________ for transport, either through the membrane or throughout the interior of the cell.

Accepted Answer

A) vacuoles 
B) corpuscles 
C) vesicles 
D) organelles 
A) vacuoles 
B) corpuscles 
C) vesicles 
D) organelles

Question 13

The passive transport of water is specifically called ________.

Accepted Answer

A) simple diffusion 
B) facilitated diffusion 
C) hydrosmosis 
D) osmosis 
A) simple diffusion 
B) facilitated diffusion 
C) hydrosmosis 
D) osmosis

Question 14

Evaluate the following statement: Larger organisms do not generally have larger cells than smaller organisms; instead, they have more cells.Is that statement true or false? Explain briefly.

Accepted Answer

This statement is true; while

Question 15

What harvests energy from food molecules to make ATP?

Accepted Answer

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

Question 16

Which cellular structure is unique to prokaryotic organisms?

Accepted Answer

A) Ribosomes 
B) Plasma membrane 
C) Plasmids 
D) Cell wall 
A) Ribosomes 
B) Plasma membrane 
C) Plasmids 
D) Cell wall

Question 17

Vitamin C is required to produce collagen.What is collagen, and what would be the symptoms of a vitamin C deficiency?

Accepted Answer

Collagen is the primary protein used to

Question 18

Select the image that is representative of an idealized plant cell.

Accepted Answer

A) 
  
B) 
  
C) 
  
D) Both A and C 
A) 
  
B) 
  
C) 
  
D) Both A and C

Question 19

What evidence would support the hypothesis that larger cells evolved in part by engulfing other, smaller cells?

Accepted Answer

Eukaryotic cells have several organelles

Question 20

Which of the following statements is typically false?

Accepted Answer

A) DNA is double stranded, whereas RNA is single stranded. 
B) DNA contains the same nucleotides as RNA. 
C) The process that goes from DNA to RNA is called transcription. 
D) The process that goes from RNA to protein is called translation. 
A) DNA is double stranded, whereas RNA is single stranded. 
B) DNA contains the same nucleotides as RNA. 
C) The process that goes from DNA to RNA is called transcription. 
D) The process that goes from RNA to protein is called translation.

Why do bacteria have ribosomes?

Identify the prokaryotic organism from the list below.

Which reaction represents cellular respiration?

What might happen to your red blood cells if your blood solute concentration began to fall rapidly below normal?

Which of the following cells contain a plasma membrane?

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

The cytoskeleton has several primary functions.The first and most obvious is that it acts as an interior skeleton that supports the rest of the cell.What is another function of the cytoskeleton?

Which statement best describes passive transport?

Select the cellular structure that can be found in both plant and animal cells.

Which of the following statements is correct regarding DNA and RNA?

Which of the following statements is true in prokaryotic organisms?

Substances are often packaged into small ________ for transport, either through the membrane or throughout the interior of the cell.

The passive transport of water is specifically called ________.

Evaluate the following statement: Larger organisms do not generally have larger cells than smaller organisms; instead, they have more cells.Is that statement true or false? Explain briefly.

What harvests energy from food molecules to make ATP?

Which cellular structure is unique to prokaryotic organisms?

Vitamin C is required to produce collagen.What is collagen, and what would be the symptoms of a vitamin C deficiency?

Select the image that is representative of an idealized plant cell.

What evidence would support the hypothesis that larger cells evolved in part by engulfing other, smaller cells?

Which of the following statements is typically false?

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

Biology The Core: Appendix

Filters

Exam 3: The Cell: The Fundamental Unit of Life

Why do bacteria have ribosomes?

Identify the prokaryotic organism from the list below.

Which reaction represents cellular respiration?

What might happen to your red blood cells if your blood solute concentration began to fall rapidly below normal?

Which of the following cells contain a plasma membrane?

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

The cytoskeleton has several primary functions.The first and most obvious is that it acts as an interior skeleton that supports the rest of the cell.What is another function of the cytoskeleton?

Which statement best describes passive transport?

Select the cellular structure that can be found in both plant and animal cells.

Which of the following statements is correct regarding DNA and RNA?

Which of the following statements is true in prokaryotic organisms?

Substances are often packaged into small ________ for transport, either through the membrane or throughout the interior of the cell.

The passive transport of water is specifically called ________.

Evaluate the following statement: Larger organisms do not generally have larger cells than smaller organisms; instead, they have more cells.Is that statement true or false? Explain briefly.

What harvests energy from food molecules to make ATP?

Which cellular structure is unique to prokaryotic organisms?

Vitamin C is required to produce collagen.What is collagen, and what would be the symptoms of a vitamin C deficiency?

Select the image that is representative of an idealized plant cell.

What evidence would support the hypothesis that larger cells evolved in part by engulfing other, smaller cells?

Which of the following statements is typically false?

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

Biology The Core: Appendix

Filters