Question 1

Use the following to answer questions :
Refer to the figure below.  
-In the left-hand part of the figure,the three main structures shown at "A" are most likely

Accepted Answer

A)  cilia. 
B)  microtubule doublets. 
C)  centrioles. 
D)  dynein motor proteins. 
E)  intermediate filaments. 
A)  cilia. 
B)  microtubule doublets. 
C)  centrioles. 
D)  dynein motor proteins. 
E)  intermediate filaments.

Question 2

Cells adhere to extracellular matrix primarily by using proteins that

Accepted Answer

A)  are transmembrane,attaching externally to the extracellular matrix and internally to collagen. 
B)  span the cell membrane,attaching externally to the extracellular matrix and internally to microfilaments. 
C)  attach to the outside of the cell membrane and adhere primarily to the proteoglycans in the extracellular matrix. 
D)  attach to surface proteins on the outside of the cell and adhere primarily to collagen. 
E)  are secreted by the cell and contribute to the extracellular matrix. 
A)  are transmembrane,attaching externally to the extracellular matrix and internally to collagen. 
B)  span the cell membrane,attaching externally to the extracellular matrix and internally to microfilaments. 
C)  attach to the outside of the cell membrane and adhere primarily to the proteoglycans in the extracellular matrix. 
D)  attach to surface proteins on the outside of the cell and adhere primarily to collagen. 
E)  are secreted by the cell and contribute to the extracellular matrix.

Question 3

The surface area-to-volume ratio of a cell

Accepted Answer

A)  remains constant throughout the life of the cell. 
B)  increases if the cell grows larger without changing shape. 
C)  decreases if the cell changes from a cuboidal to flattened shape. 
D)  is larger in a large cuboidal-shaped cell than in a small cuboidal-shaped cell. 
E)  increases if the cell develops folds in its cell membrane. 
A)  remains constant throughout the life of the cell. 
B)  increases if the cell grows larger without changing shape. 
C)  decreases if the cell changes from a cuboidal to flattened shape. 
D)  is larger in a large cuboidal-shaped cell than in a small cuboidal-shaped cell. 
E)  increases if the cell develops folds in its cell membrane.

Question 4

The tenets of the cell theory,developed in the nineteenth century,are that all organisms are composed of cells,that all cells come from _______,and that cells are the fundamental units of life.

Accepted Answer

The answer of The tenets of the cell theory,developed in...

Question 5

A spherical cell with a diameter of 10 $\mu$m would exchange substances and waste products with its environment more efficiently than a _______,all else being equal.

Accepted Answer

A)  spherical cell with a diameter of 7 $\mu$m 
B)  flattened cell of the same volume 
C)  spherical cell with a diameter of 15 $\mu$m 
D)  cuboidal cell of the same volume 
E)  None of the above;all cells exchange substances and waste products with the environment at the same rate,irrespective of size and shape. 
A)  spherical cell with a diameter of 7 $\mu$m 
B)  flattened cell of the same volume 
C)  spherical cell with a diameter of 15 $\mu$m 
D)  cuboidal cell of the same volume 
E)  None of the above;all cells exchange substances and waste products with the environment at the same rate,irrespective of size and shape.

Question 6

The type of cell that always lacks a cell wall is the _______ cell.

Accepted Answer

A)  bacterial 
B)  plant 
C)  animal 
D)  fungal 
E)  prokaryotic 
A)  bacterial 
B)  plant 
C)  animal 
D)  fungal 
E)  prokaryotic

Question 7

Which structure(s)is/are involved with maintaining the position of organelles within a cell?

Accepted Answer

A)  Cell wall 
B)  Endoplasmic reticulum 
C)  Mitochondria 
D)  Golgi apparatus 
E)  Intermediate filaments 
A)  Cell wall 
B)  Endoplasmic reticulum 
C)  Mitochondria 
D)  Golgi apparatus 
E)  Intermediate filaments

Question 8

Cilia

Accepted Answer

A)  are shorter and often more numerous than flagella. 
B)  are composed of microfilaments. 
C)  are composed of intermediate filaments. 
D)  propel ribosomes through the cytoplasm. 
E)  propel organelles through the cytoplasm. 
A)  are shorter and often more numerous than flagella. 
B)  are composed of microfilaments. 
C)  are composed of intermediate filaments. 
D)  propel ribosomes through the cytoplasm. 
E)  propel organelles through the cytoplasm.

Question 9

Use the following to answer questions :
Refer to the figure below.  
-If you took a cross-section of the structure shown on the left at the level labeled "A" and then examined the specimen through electron microscopy,you would most likely see which of the structures shown on the right?

Accepted Answer

A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 only 
E)  1,2,and 3 
A)  1 only 
B)  2 only 
C)  3 only 
D)  1 and 2 only 
E)  1,2,and 3

Question 10

If you used a stain that was specific for DNA,which structure(s)within a cell from an oak leaf would most likely take up the stain?

Accepted Answer

A)  The nucleus only 
B)  The nucleus and mitochondria only 
C)  The endoplasmic reticulum 
D)  The nucleus,chloroplasts,and mitochondria only 
E)  The nucleus,chloroplasts,mitochondria,and ribosomes 
A)  The nucleus only 
B)  The nucleus and mitochondria only 
C)  The endoplasmic reticulum 
D)  The nucleus,chloroplasts,and mitochondria only 
E)  The nucleus,chloroplasts,mitochondria,and ribosomes

Question 11

If you labeled all components of the cytoskeleton,which structures would be labeled?

Accepted Answer

A)  Cilia and flagella only 
B)  Microtubules only 
C)  Cell membrane and microfilaments 
D)  Cilia,flagella,intermediate filaments,and microfilaments 
E)  Actin filaments,intermediate filaments,microtubules,cilia,and flagella 
A)  Cilia and flagella only 
B)  Microtubules only 
C)  Cell membrane and microfilaments 
D)  Cilia,flagella,intermediate filaments,and microfilaments 
E)  Actin filaments,intermediate filaments,microtubules,cilia,and flagella

Question 12

If a cell is making a protein that is then going to be modified and packaged for export out of the cell,what is the order of structures it will most likely pass through?

Accepted Answer

A)  Vesicle;smooth ER;Golgi apparatus 
B)  Rough ER;Golgi apparatus;vesicle 
C)  Golgi apparatus;rough ER;ribosome 
D)  Rough ER;Golgi apparatus;lysosome 
E)  Smooth ER;Golgi apparatus;vesicle 
A)  Vesicle;smooth ER;Golgi apparatus 
B)  Rough ER;Golgi apparatus;vesicle 
C)  Golgi apparatus;rough ER;ribosome 
D)  Rough ER;Golgi apparatus;lysosome 
E)  Smooth ER;Golgi apparatus;vesicle

Question 13

You were sent electron micrographs,but the labels fell off that identified them as to cell type.You know that one picture is of cells from the pancreas that secrete digestive enzymes;the other picture is of adrenal cells that secrete corticosteroid hormones.What clue will you look for to identify which picture is which?

Accepted Answer

A)  The pancreatic cells will have fewer ribosomes than the adrenal cells. 
B)  The pancreatic cells will have more mitochondria than the adrenal cells. 
C)  The adrenal cells will have more SER than the pancreatic cells. 
D)  The adrenal cells will have more RER than the pancreatic cells. 
E)  The pancreatic cells will have more lysosomes than the adrenal cells. 
A)  The pancreatic cells will have fewer ribosomes than the adrenal cells. 
B)  The pancreatic cells will have more mitochondria than the adrenal cells. 
C)  The adrenal cells will have more SER than the pancreatic cells. 
D)  The adrenal cells will have more RER than the pancreatic cells. 
E)  The pancreatic cells will have more lysosomes than the adrenal cells.

Question 14

Use the following to answer questions :
Refer to the figure below.  
-If you could observe the living organism shown in the figure above,you would see that it can use the structures labeled 1 to

Accepted Answer

A)  swim in a cork-screw-like motion. 
B)  grab prey. 
C)  guide itself through air. 
D)  sense the presence of predators. 
E)  move forward due to the structures' whipping motions. 
A)  swim in a cork-screw-like motion. 
B)  grab prey. 
C)  guide itself through air. 
D)  sense the presence of predators. 
E)  move forward due to the structures' whipping motions.

Question 15

Use the following to answer questions :
Refer to the figure below.  
-The photograph of the organism shown above was most likely taken using a(n)_______,and the structures labeled 1 are most likely _______.

Accepted Answer

A)  light microscope;cilia 
B)  light microscope;flagella 
C)  macro lens on a handheld camera;antennae 
D)  electron microscope;antennae 
E)  electron microscope;flagella 
A)  light microscope;cilia 
B)  light microscope;flagella 
C)  macro lens on a handheld camera;antennae 
D)  electron microscope;antennae 
E)  electron microscope;flagella

Exam 4: Cells: the Working Units of Life

Use the following to answer questions : Refer to the figure below. -In the left-hand part of the figure,the three main structures shown at "A" are most likely

Cells adhere to extracellular matrix primarily by using proteins that

The surface area-to-volume ratio of a cell

The tenets of the cell theory,developed in the nineteenth century,are that all organisms are composed of cells,that all cells come from _______,and that cells are the fundamental units of life.

A spherical cell with a diameter of 10 μ\muμ m would exchange substances and waste products with its environment more efficiently than a _______,all else being equal.

The type of cell that always lacks a cell wall is the _______ cell.

Which structure(s)is/are involved with maintaining the position of organelles within a cell?

Cilia

Use the following to answer questions : Refer to the figure below. -If you took a cross-section of the structure shown on the left at the level labeled "A" and then examined the specimen through electron microscopy,you would most likely see which of the structures shown on the right?

If you used a stain that was specific for DNA,which structure(s)within a cell from an oak leaf would most likely take up the stain?

If you labeled all components of the cytoskeleton,which structures would be labeled?

If a cell is making a protein that is then going to be modified and packaged for export out of the cell,what is the order of structures it will most likely pass through?

Use the following to answer questions : Refer to the figure below. -If you could observe the living organism shown in the figure above,you would see that it can use the structures labeled 1 to

Use the following to answer questions : Refer to the figure below. -The photograph of the organism shown above was most likely taken using a(n)_______,and the structures labeled 1 are most likely _______.

Introduction

The Chemistry and Energy of Life

Nucleic Acids, Proteins, and Enzymes

Cell Membranes and Signaling

Pathways That Harvest and Store Chemical Energy

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

DNA and Its Role in Heredity

From Dna to Protein: Gene Expression

Regulation of Gene Expression

Genomes

Biotechnology

Genes, Development, and Evolution

Processes of Evolution

Reconstructing and Using Phylogenies

Speciation

The History of Life on Earth

Bacteria, Archaea, and Viruses

The Origin and Diversification of Eukaryotes

The Evolution of Plants

The Evolution and Diversity of Fungi

Animal Origins and Diversity

The Plant Body

Plant Nutrition and Transport

Plant Growth and Development

Reproduction of Flowering Plants

Plants in the Environment

Fundamentals of Animal Function

Nutrition and Digestion

Breathing

Circulation

Muscle and Movement

Neurons, Sense Organs, and Nervous Systems

Nervous and Endocrine Control

Water and Salts: Excretion

Animal Reproduction

Animal Development

Immunology: Animal Defense Systems

Animal Behavior

The Distribution of Earths Ecological Systems

Populations

Ecological and Evolutionary Consequences of Interactions Within and Among Species

Ecological Communities

The Global Ecosystem

Filters

A spherical cell with a diameter of 10 $\mu$ m would exchange substances and waste products with its environment more efficiently than a _______,all else being equal.

Use the following to answer questions : Refer to the figure below. -The photograph of the organism shown above was most likely taken using a(n)_,and the structures labeled 1 are most likely _.