Question 1

Certain ________ in a cell's membrane form channels through which ions and molecules may pass.

Accepted Answer

The answer of Certain ________ in a cell's membrane form...

Question 2

Certain cells in the mouth produce large amounts of the enzyme amylase,a component of saliva that hydrolyzes carbohydrate.Which of the following organelles would be expected to be especially abundant in these cells?

Accepted Answer

A)  chloroplasts 
B)  mitochondria 
C)  rough endoplasmic reticulum 
D)  lysosomes 
A)  chloroplasts 
B)  mitochondria 
C)  rough endoplasmic reticulum 
D)  lysosomes

Question 3

Which of the following statements is true?

Accepted Answer

A)  All types of eukaryotic cells have the same structure, appearance, and function. 
B)  Different eukaryotic cells contain different numbers and types of organelles, depending on the specific tasks they must perform. 
C)  Bacterial cells contain membrane-bound organelles. 
D)  Plant and animal cells have the same structure and organelles. 
A)  All types of eukaryotic cells have the same structure, appearance, and function. 
B)  Different eukaryotic cells contain different numbers and types of organelles, depending on the specific tasks they must perform. 
C)  Bacterial cells contain membrane-bound organelles. 
D)  Plant and animal cells have the same structure and organelles.

Question 4

The cell in the following figure is moving by producing pseudopodia.This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled).   Some of the various labeled lines in the figure show

Accepted Answer

A)  microtubules elongating at the leading edge of movement. 
B)  microfilaments disassembling at the trailing edge of movement. 
C)  different types of intermediate filaments located in different parts of the cell. 
D)  motor proteins attached to microtubules pushing the plasma membrane forward. 
A)  microtubules elongating at the leading edge of movement. 
B)  microfilaments disassembling at the trailing edge of movement. 
C)  different types of intermediate filaments located in different parts of the cell. 
D)  motor proteins attached to microtubules pushing the plasma membrane forward.

Question 5

The light-capturing pigments of photosynthesis like chlorophyll are contained in the membrane of a structure known as a(n)

Accepted Answer

A)  pore. 
B)  envelope. 
C)  crista. 
D)  thylakoid. 
A)  pore. 
B)  envelope. 
C)  crista. 
D)  thylakoid.

Question 6

Ribosomes are very small,nonmembranous organelles associated with the synthesis of

Accepted Answer

A)  protein. 
B)  DNA. 
C)  membrane phospholipid. 
D)  the membranous organelles. 
A)  protein. 
B)  DNA. 
C)  membrane phospholipid. 
D)  the membranous organelles.

Question 7

The relative abundance of a specific organelle is often predictable when cell function is considered; for example,more lysosomes than those found in an average cell could be expected to be found in

Accepted Answer

A)  photosynthetic cells of a leaf. 
B)  brain cells that produce large amounts of proteins to send signals to other cells. 
C)  acid- and enzyme-producing cells that line your stomach. 
D)  cells that roam around your body engulfing and consuming bacteria. 
A)  photosynthetic cells of a leaf. 
B)  brain cells that produce large amounts of proteins to send signals to other cells. 
C)  acid- and enzyme-producing cells that line your stomach. 
D)  cells that roam around your body engulfing and consuming bacteria.

Question 8

A cell you view under a microscope has a cell wall and chromosomes,but no nucleus.The cell you are viewing could be a

Accepted Answer

A)  human muscle cell. 
B)  cell from the leaf of a maple tree. 
C)  bacterium recovered from the large intestine of a mammal. 
D)  cell from the skin of a potato. 
A)  human muscle cell. 
B)  cell from the leaf of a maple tree. 
C)  bacterium recovered from the large intestine of a mammal. 
D)  cell from the skin of a potato.

Question 9

Multicellularity offers a variety of advantages to an organism; among the most important is

Accepted Answer

A)  reproductive potential-when separated, each individual cell is capable of independent survival. 
B)  genetic specialization-each cell can eliminate unnecessary genetic material and produce replicate (backup) copies of essential genetic material. 
C)  adaptive size-single cells remain constrained by the relationship of surface area to volume, but collectively, the organism can enlarge to the extent that is most advantageous. 
D)  protective-if partially consumed by predators, the remainder of the organism can replenish the missing cells. 
A)  reproductive potential-when separated, each individual cell is capable of independent survival. 
B)  genetic specialization-each cell can eliminate unnecessary genetic material and produce replicate (backup) copies of essential genetic material. 
C)  adaptive size-single cells remain constrained by the relationship of surface area to volume, but collectively, the organism can enlarge to the extent that is most advantageous. 
D)  protective-if partially consumed by predators, the remainder of the organism can replenish the missing cells.

Certain ________ in a cell's membrane form channels through which ions and molecules may pass.

Certain cells in the mouth produce large amounts of the enzyme amylase,a component of saliva that hydrolyzes carbohydrate.Which of the following organelles would be expected to be especially abundant in these cells?

Which of the following statements is true?

The cell in the following figure is moving by producing pseudopodia.This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled). Some of the various labeled lines in the figure show

The light-capturing pigments of photosynthesis like chlorophyll are contained in the membrane of a structure known as a(n)

Ribosomes are very small,nonmembranous organelles associated with the synthesis of

The relative abundance of a specific organelle is often predictable when cell function is considered; for example,more lysosomes than those found in an average cell could be expected to be found in

A cell you view under a microscope has a cell wall and chromosomes,but no nucleus.The cell you are viewing could be a

Multicellularity offers a variety of advantages to an organism; among the most important is

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photo Synthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Global Change

Filters

Exam 3: Cell Structure and Internal Compartments

Certain ________ in a cell's membrane form channels through which ions and molecules may pass.

Certain cells in the mouth produce large amounts of the enzyme amylase,a component of saliva that hydrolyzes carbohydrate.Which of the following organelles would be expected to be especially abundant in these cells?

Which of the following statements is true?

The cell in the following figure is moving by producing pseudopodia.This type of movement is a result of the reorganization of a certain component of the cytoskeleton (labeled). Some of the various labeled lines in the figure show

The light-capturing pigments of photosynthesis like chlorophyll are contained in the membrane of a structure known as a(n)

Ribosomes are very small,nonmembranous organelles associated with the synthesis of

The relative abundance of a specific organelle is often predictable when cell function is considered; for example,more lysosomes than those found in an average cell could be expected to be found in

A cell you view under a microscope has a cell wall and chromosomes,but no nucleus.The cell you are viewing could be a

Multicellularity offers a variety of advantages to an organism; among the most important is

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photo Synthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Global Change

Filters