Question 1

What information is used by the ribosome to assemble the amino acid sequence of a polypeptide?

Accepted Answer

A)  Base sequence of mRNA 
B)  Base sequence of DNA 
C)  Base sequence of tRNA 
D)  Base sequence of the chromosome 
A)  Base sequence of mRNA 
B)  Base sequence of DNA 
C)  Base sequence of tRNA 
D)  Base sequence of the chromosome A

Question 2

When would chromatin be the most tightly coiled?

Accepted Answer

A)  During protein synthesis 
B)  During cellular respiration 
C)  During photosynthesis 
D)  During cell division 
A)  During protein synthesis 
B)  During cellular respiration 
C)  During photosynthesis 
D)  During cell division D

Question 3

Which form of transport requires the expenditure of energy?

Accepted Answer

A)  Facilitated diffusion 
B)  Active transport 
C)  Passive transport 
D)  Osmosis 
A)  Facilitated diffusion 
B)  Active transport 
C)  Passive transport 
D)  Osmosis B

Question 4

What is ATP?

Accepted Answer

A)  A protein 
B)  A carbohydrate 
C)  An energy molecule 
D)  An information storage molecule 
A)  A protein 
B)  A carbohydrate 
C)  An energy molecule 
D)  An information storage molecule

Question 5

Which of the following statements is correct?

Accepted Answer

A)  Prokaryotic cells and eukaryotic cells evolved at the same time. 
B)  Prokaryotic cells evolved a lot earlier (over a billion years) than eukaryotic cells. 
C)  Eukaryotic cells evolved a lot earlier (over a billion years) than prokaryotic cells. 
D)  Scientists do not have any evidence on whether prokaryotic or eukaryotic cells evolved first. 
A)  Prokaryotic cells and eukaryotic cells evolved at the same time. 
B)  Prokaryotic cells evolved a lot earlier (over a billion years) than eukaryotic cells. 
C)  Eukaryotic cells evolved a lot earlier (over a billion years) than prokaryotic cells. 
D)  Scientists do not have any evidence on whether prokaryotic or eukaryotic cells evolved first.

Question 6

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 7

Ribosomes are directly associated with which process?

Accepted Answer

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

Question 8

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

Question 9

What is the main function of the nucleus?

Accepted Answer

A)  To hold all of the DNA 
B)  To hold all of the RNA 
C)  To produce proteins 
D)  To produce energy 
A)  To hold all of the DNA 
B)  To hold all of the RNA 
C)  To produce proteins 
D)  To produce energy

Question 10

Which cellular structure is unique to prokaryotic organisms?

Accepted Answer

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

Question 11

Which of the following is an accurate description of the plasma membrane?

Accepted Answer

A)  Two layers of phospholipids with a number of proteins embedded within 
B)  One layer of phospholipids with a number of proteins embedded within 
C)  Two layers of proteins with a few phospholipids embedded within 
D)  One layer of proteins with a few phospholipids embedded within 
A)  Two layers of phospholipids with a number of proteins embedded within 
B)  One layer of phospholipids with a number of proteins embedded within 
C)  Two layers of proteins with a few phospholipids embedded within 
D)  One layer of proteins with a few phospholipids embedded within

Question 12

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 13

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 14

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 15

It is sometimes jokingly said that you could study for your biology test by placing your textbook under your pillow at night and thereby learn by osmosis,as the knowledge would flow from the book to your brain while you slept.Aside from the obvious absurdity of this claim,what is wrong with the use of the word "osmosis" in this context? How might you lose knowledge (if knowledge could actually flow along a concentration gradient between a book and a brain)if you tried this technique?

Accepted Answer

Osmosis specifically refers to the flow

Question 16

Which statement best describes active 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 17

The long extension of a cell that can propel a cell forward by whipping back and forth (such as human sperm)is called a ________.

Accepted Answer

A)  vesicle 
B)  flagellum 
C)  pilus 
D)  cilium 
A)  vesicle 
B)  flagellum 
C)  pilus 
D)  cilium

Question 18

Which cellular structure is unique to animal cells?

Accepted Answer

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

Question 19

Where are ribosomes located?

Accepted Answer

A)  In the cytoplasm only 
B)  On the rough endoplasmic reticulum only 
C)  On the smooth endoplasmic reticulum and in the cytoplasm 
D)  On the rough endoplasmic reticulum and in the cytoplasm 
A)  In the cytoplasm only 
B)  On the rough endoplasmic reticulum only 
C)  On the smooth endoplasmic reticulum and in the cytoplasm 
D)  On the rough endoplasmic reticulum and in the cytoplasm

Question 20

Which of the following is not a form of passive transport?

Accepted Answer

A)  Diffusion 
B)  Osmosis 
C)  Facilitated diffusion 
D)  All of the above are forms of passive transport 
A)  Diffusion 
B)  Osmosis 
C)  Facilitated diffusion 
D)  All of the above are forms of passive transport

What information is used by the ribosome to assemble the amino acid sequence of a polypeptide?

When would chromatin be the most tightly coiled?

Which form of transport requires the expenditure of energy?

What is ATP?

Which of the following statements is correct?

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

Ribosomes are directly associated with which process?

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

What is the main function of the nucleus?

Which cellular structure is unique to prokaryotic organisms?

Which of the following is an accurate description of the plasma membrane?

Which reaction represents cellular respiration?

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

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

Which statement best describes active transport?

The long extension of a cell that can propel a cell forward by whipping back and forth (such as human sperm)is called a ________.

Which cellular structure is unique to animal cells?

Where are ribosomes located?

Which of the following is not a form of passive transport?

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

What information is used by the ribosome to assemble the amino acid sequence of a polypeptide?

When would chromatin be the most tightly coiled?

Which form of transport requires the expenditure of energy?

What is ATP?

Which of the following statements is correct?

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

Ribosomes are directly associated with which process?

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

What is the main function of the nucleus?

Which cellular structure is unique to prokaryotic organisms?

Which of the following is an accurate description of the plasma membrane?

Which reaction represents cellular respiration?

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

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

Which statement best describes active transport?

The long extension of a cell that can propel a cell forward by whipping back and forth (such as human sperm)is called a ________.

Which cellular structure is unique to animal cells?

Where are ribosomes located?

Which of the following is not a form of passive transport?

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