Question 1

Myosin is a motor protein that walks along intermediate filaments.

Accepted Answer

A) True 
 B)False

Question 2

Materials move in and out of the nucleus via endocytosis and exocytosis.

Accepted Answer

A) True 
 B)False

Question 3

The bones and cartilage in animals serve the same function as ________ in plants?

Accepted Answer

A) phloem 
B) capillaries 
C) leaves 
D) xylem 
E) wood 
A) phloem 
B) capillaries 
C) leaves 
D) xylem 
E) wood

Question 4

Eukaryotes such as animal and plants cells differ from prokaryotes in that prokaryotes

Accepted Answer

A) lack a true nucleus. 
B) lack true DNA. 
C) use the cells membrane rather than ribosomes for making proteins. 
D) contain numerous organelles. 
E) undergo sexual reproduction. 
A) lack a true nucleus. 
B) lack true DNA. 
C) use the cells membrane rather than ribosomes for making proteins. 
D) contain numerous organelles. 
E) undergo sexual reproduction.

Question 5

In animals,_____ is largely composed of extracellular matrix.

Accepted Answer

A) intestine 
B) muscle 
C) cartilage 
D) kidney 
E) eye 
A) intestine 
B) muscle 
C) cartilage 
D) kidney 
E) eye

Question 6

In eukaryotes,most proteins contain short stretches of amino acid sequences called sorting signals which direct the protein to the correct cellular location.

Accepted Answer

A) True 
 B)False

Question 7

Prokaryotes such as bacteria cells differ from eukaryotes in that prokaryotes

Accepted Answer

A) lack a membrane-bound nucleus. 
B) DNA is located within the cytosol. 
C) have a simpler structure relative to eukaryotes. 
D) possess membrane-bound organelles. 
E) they are relatively small compared with eukaryotes. 
A) lack a membrane-bound nucleus. 
B) DNA is located within the cytosol. 
C) have a simpler structure relative to eukaryotes. 
D) possess membrane-bound organelles. 
E) they are relatively small compared with eukaryotes.

Question 8

You inject a dye into a eukaryotic cell to detect a specific functional enzyme in the cytosol.Where would you need to inject the dye and what function might the enzyme have?

Accepted Answer

A) You would have to inject the dye into the membrane of the rough ER;the enzyme's function could be synthesis of lipids. 
B) The dye would go between the plasma membrane and membrane of the organelles;the enzyme may be associated with glycolysis. 
C) Injection of the dye must occur in the inner membrane space of the mitochondria;the enzyme may be part of the electron transport chain. 
D) The Golgi apparatus holds the cytosol,and therefore the dye must be injected there;the enzyme may assist with protein packaging. 
A) You would have to inject the dye into the membrane of the rough ER;the enzyme's function could be synthesis of lipids. 
B) The dye would go between the plasma membrane and membrane of the organelles;the enzyme may be associated with glycolysis. 
C) Injection of the dye must occur in the inner membrane space of the mitochondria;the enzyme may be part of the electron transport chain. 
D) The Golgi apparatus holds the cytosol,and therefore the dye must be injected there;the enzyme may assist with protein packaging.

Question 9

Fluorescence microscopy enables researchers to label and visualize a particular type of cellular protein or organelle.

Accepted Answer

A) True 
 B)False

Question 10

The general structural and functional differences between a nerve and smooth muscle cell within an individual are a result of

Accepted Answer

A) the proteome (proteins in a cell)that differ between muscle and nerve cells. 
B) the genome (DNA in a cell)being different between muscle and nerve cells. 
C) the relative amounts of certain proteins between muscle and nerve cells. 
D) the proteome and the relative amounts of certain proteins that differ between muscle and nerve cells. 
E) the genome and the relative amounts of certain proteins that differ between muscle and nerve cells. 
A) the proteome (proteins in a cell)that differ between muscle and nerve cells. 
B) the genome (DNA in a cell)being different between muscle and nerve cells. 
C) the relative amounts of certain proteins between muscle and nerve cells. 
D) the proteome and the relative amounts of certain proteins that differ between muscle and nerve cells. 
E) the genome and the relative amounts of certain proteins that differ between muscle and nerve cells.

Question 11

If organelles are able to divide and reproduce themselves like a cell those most likely to have this ability would be

Accepted Answer

A) mitochondria only. 
B) chloroplasts only. 
C) peroxisomes only. 
D) both mitochondria and chloroplasts. 
E) mitochondria,chloroplasts,and lysosomes. 
A) mitochondria only. 
B) chloroplasts only. 
C) peroxisomes only. 
D) both mitochondria and chloroplasts. 
E) mitochondria,chloroplasts,and lysosomes.

Question 12

The signal recognition particle (SRP)

Accepted Answer

A) binds to a receptor in the smooth endoplasmic reticulum (ER). 
B) docks with the ribosome over a rough ER channel protein. 
C) helps a vesicle to bud from the rough ER. 
D) recognizes the ER signal sequence. 
E) places proteins in the cytoplasm. 
A) binds to a receptor in the smooth endoplasmic reticulum (ER). 
B) docks with the ribosome over a rough ER channel protein. 
C) helps a vesicle to bud from the rough ER. 
D) recognizes the ER signal sequence. 
E) places proteins in the cytoplasm.

Question 13

Some tissues need to be able to expand and contract,such lungs during breathing and intestines during digestion.Predict which ECM protein would be abundant in these tissues.

Accepted Answer

A) laminin 
B) glycosaminoglycans 
C) collagen 
D) elastin 
E) fibronectin 
A) laminin 
B) glycosaminoglycans 
C) collagen 
D) elastin 
E) fibronectin

Question 14

All plant cells contain centrioles.

Accepted Answer

A) True 
 B)False

Question 15

Some cells alter their surface area to volume ratio by increasing their size or altering their shape.A classic example of this change is

Accepted Answer

A) cuboidal epithelial cells. 
B) squamous cells. 
C) neutrophil cells. 
D) microvilli covered intestinal cells. 
E) cytotoxic T cells. 
A) cuboidal epithelial cells. 
B) squamous cells. 
C) neutrophil cells. 
D) microvilli covered intestinal cells. 
E) cytotoxic T cells.

Question 16

Unlike animals,plants lack a cell junction where small molecules can move from one cell to another cell.

Accepted Answer

A) True 
 B)False

Question 17

Signals can be sent from the ECM to the cell through _____.

Accepted Answer

A) connexins 
B) cadherins 
C) integrins 
D) claudins 
E) fibronectins 
A) connexins 
B) cadherins 
C) integrins 
D) claudins 
E) fibronectins

Question 18

What organelle and function pair can best explain their ability to divide?

Accepted Answer

A) Chloroplasts and peroxisomes because they both have their own DNA. 
B) Mitochondria and chloroplasts due to their association with endosymbiosis theory. 
C) Ribosomes and mitochondria as each is a result of regression theory. 
D) Peroxisomes and lysosomes are both derived from engulfed bacteria. 
A) Chloroplasts and peroxisomes because they both have their own DNA. 
B) Mitochondria and chloroplasts due to their association with endosymbiosis theory. 
C) Ribosomes and mitochondria as each is a result of regression theory. 
D) Peroxisomes and lysosomes are both derived from engulfed bacteria.

Question 19

Due to the lack of an enzyme to break down lipids,excess accumulation of lipids in the brain leads to a human disease called Tay Sachs syndrome.The organelle most likely to lack the proper enzyme needed for lipid breakdown is

Accepted Answer

A) lysosomes. 
B) tonoplasts. 
C) mitochondrion. 
D) Golgi apparatus. 
E) peroxisomes. 
A) lysosomes. 
B) tonoplasts. 
C) mitochondrion. 
D) Golgi apparatus. 
E) peroxisomes.

Question 20

The major macromolecules of the ECM are _____

Accepted Answer

A) fat and nucleotides. 
B) fat and proteins. 
C) nucleotides and proteins. 
D) polysaccharides and proteins. 
E) polysaccharides and fat. 
A) fat and nucleotides. 
B) fat and proteins. 
C) nucleotides and proteins. 
D) polysaccharides and proteins. 
E) polysaccharides and fat.

Exam 4: General Features of Cells

Myosin is a motor protein that walks along intermediate filaments.

Materials move in and out of the nucleus via endocytosis and exocytosis.

The bones and cartilage in animals serve the same function as ________ in plants?

Eukaryotes such as animal and plants cells differ from prokaryotes in that prokaryotes

In animals,_____ is largely composed of extracellular matrix.

In eukaryotes,most proteins contain short stretches of amino acid sequences called sorting signals which direct the protein to the correct cellular location.

Prokaryotes such as bacteria cells differ from eukaryotes in that prokaryotes

You inject a dye into a eukaryotic cell to detect a specific functional enzyme in the cytosol.Where would you need to inject the dye and what function might the enzyme have?

Fluorescence microscopy enables researchers to label and visualize a particular type of cellular protein or organelle.

The general structural and functional differences between a nerve and smooth muscle cell within an individual are a result of

If organelles are able to divide and reproduce themselves like a cell those most likely to have this ability would be

The signal recognition particle (SRP)

Some tissues need to be able to expand and contract,such lungs during breathing and intestines during digestion.Predict which ECM protein would be abundant in these tissues.

All plant cells contain centrioles.

Some cells alter their surface area to volume ratio by increasing their size or altering their shape.A classic example of this change is

Unlike animals,plants lack a cell junction where small molecules can move from one cell to another cell.

Signals can be sent from the ECM to the cell through _____.

What organelle and function pair can best explain their ability to divide?

Due to the lack of an enzyme to break down lipids,excess accumulation of lipids in the brain leads to a human disease called Tay Sachs syndrome.The organelle most likely to lack the proper enzyme needed for lipid breakdown is

The major macromolecules of the ECM are _____

An Introduction to Biology

The Chemical Basis of Life I: Atoms, Molecules, and Water

The Chemical Basis of Life II: Organic Molecules

Membrane Structure, Transport, and Cell Junctions

Energy, Enzymes, and Cellular Respiration

Photosynthesis

Cell Communication

Nucleic Acid Structure, DNA Replication, and Chromosome Structure

Gene Expression at the Molecular Level

Gene Regulation

Mutation, DNA Repair, and Cancer

The Eukaryotic Cell Cycle, Mitosis, and Meiosis

Patterns of Inheritance

Genetics of Viruses and Bacteria

Genetic Technology

Genomes, Repetitive Sequences, and Bioinformatics

Origin and History of Life

An Introduction to Evolution and Population Genetics

Origin of Species and Macroevolution

Taxonomy and Systematics

Microorganisms: The Archaea, Bacteria, and Protists

Plants

Fungi

Animal Diversity: Invertebrates

Animal Diversity: Vertebrates

An Introduction to Flowering Plant Form and Function

Flowering Plants: Plant Behavior

Flowering Plants: Nutrition and Transport

Flowering Plants: Reproduction

Animal Bodies and Homeostasis

Neuroscience I: Structure, Function, and Evolution of Nervous Systems

Neuroscience II: Sensory Systems

Muscular-Skeletal Systems

Digestive Systems and Nutrition

Circulatory Systems

Respiratory Systems

Excretory Systems and the Homeostasis of Internal Fluids

Endocrine Systems

Animal Reproduction and Development

Immune Systems

Animal Behavior

Ecology and the Physical Environment

Population Ecology

Community Ecology

Ecosystem Ecology

Biodiversity and Conservation Biology

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