Question 1

The nuclear envelope is porous to allow certain molecules to move between the nucleus and cytoplasm.

Accepted Answer

A) True 
 B)False

Question 2

Chromosomes shorten and thicken during this stage of the cell cycle.

Accepted Answer

A)  metaphase 
B)  anaphase 
C)  prophase 
D)  telophase 
E)  cytokinesis 
A)  metaphase 
B)  anaphase 
C)  prophase 
D)  telophase 
E)  cytokinesis

Question 3

The fluid within cells in which the nucleus and other organelles are suspended is

Accepted Answer

A)  protoplasm. 
B)  cytosol 
C)  cell sap. 
D)  pectin. 
E)  stroma. 
A)  protoplasm. 
B)  cytosol 
C)  cell sap. 
D)  pectin. 
E)  stroma.

Question 4

According to the endosymbiotic theory

Accepted Answer

A)  all living organisms are composed of cells and that a cell is the smallest unit considered to be living. 
B)  living organisms can arise from non-living matter and that the type of organism formed depends on the type of non-living matter. 
C)  chloroplasts and mitochondria evolved from small prokaryotes that were consumed by a larger eukaryotic cell. 
D)  new species arise when a portion of the population becomes isolated from the remainder of the population and experiences different selective pressures. 
E)  DNA controls the activities of the cell by specifying what proteins are to be synthesized. 
A)  all living organisms are composed of cells and that a cell is the smallest unit considered to be living. 
B)  living organisms can arise from non-living matter and that the type of organism formed depends on the type of non-living matter. 
C)  chloroplasts and mitochondria evolved from small prokaryotes that were consumed by a larger eukaryotic cell. 
D)  new species arise when a portion of the population becomes isolated from the remainder of the population and experiences different selective pressures. 
E)  DNA controls the activities of the cell by specifying what proteins are to be synthesized.

Question 5

In mitosis the two chromatids of each chromosome separate and move to opposite poles during

Accepted Answer

A)  prophase. 
B)  metaphase. 
C)  anaphase. 
D)  telophase. 
E)  interphase. 
A)  prophase. 
B)  metaphase. 
C)  anaphase. 
D)  telophase. 
E)  interphase.

Question 6

__________________ microscopes allow scientists to see atomic structure of molecules.

Accepted Answer

A)  Compound 
B)  Scanning electron 
C)  Dissecting 
D)  Scanning tunneling 
E)  Confocal scanning 
A)  Compound 
B)  Scanning electron 
C)  Dissecting 
D)  Scanning tunneling 
E)  Confocal scanning

Question 7

The preprophase band, the spindle fibers, and the phragmoplast are involved in cell division and are part of the cytoskeleton.

Accepted Answer

A) True 
 B)False

Question 8

Leeuwenhoek is credited with applying the term cell to the boxlike compartments he saw in cork tissue.

Accepted Answer

A) True 
 B)False

Question 9

The middle lamella

Accepted Answer

A)  appears after droplets of pectin accumulate in the equatorial region on spindle fibers. 
B)  consists mainly of cellulose. 
C)  appears during anaphase. 
D)  is not formed if the phragmopast is present. 
E)  is an important living portion of the cell. 
A)  appears after droplets of pectin accumulate in the equatorial region on spindle fibers. 
B)  consists mainly of cellulose. 
C)  appears during anaphase. 
D)  is not formed if the phragmopast is present. 
E)  is an important living portion of the cell.

Question 10

The cell wall functions _______________________.

Accepted Answer

A)  as support 
B)  as a barrier between plant and outside environment 
C)  as protection for fragile cells 
D)  to provide and maintain functional cell shape 
E)  all of these 
A)  as support 
B)  as a barrier between plant and outside environment 
C)  as protection for fragile cells 
D)  to provide and maintain functional cell shape 
E)  all of these

Question 11

The watery fluid found in vacuoles is called

Accepted Answer

A)  chromatin. 
B)  stroma. 
C)  cristae. 
D)  protoplasm. 
E)  cell sap. 
A)  chromatin. 
B)  stroma. 
C)  cristae. 
D)  protoplasm. 
E)  cell sap.

Question 12

In plants such as ferns, conifers, and flowering plants, mitosis takes place mostly in

Accepted Answer

A)  meristems. 
B)  wood. 
C)  the center of stems. 
D)  the center of roots. 
E)  leaves. 
A)  meristems. 
B)  wood. 
C)  the center of stems. 
D)  the center of roots. 
E)  leaves.

Question 13

Who first saw boxlike compartments with a simple microscope and named them "cells"?

Accepted Answer

A)  Anton van Leeuwenhoek 
B)  Robert Hooke 
C)  Francis Crick 
D)  Charles Darwin 
E)  Gregor Mendel 
A)  Anton van Leeuwenhoek 
B)  Robert Hooke 
C)  Francis Crick 
D)  Charles Darwin 
E)  Gregor Mendel

Question 14

The _______________________ initiates the formation of the new cell wall separating two daughter cells.

Accepted Answer

A)  cell plate 
B)  centriole 
C)  phragmoplast 
D)  dictyosome 
E)  endoplasmic reticulum 
A)  cell plate 
B)  centriole 
C)  phragmoplast 
D)  dictyosome 
E)  endoplasmic reticulum

Question 15

Cyclosis is another name for the cell cycle.

Accepted Answer

A) True 
 B)False

Question 16

The structure known as the ______________ is formed of RNA and associated proteins inside the nucleus.

Accepted Answer

A)  ribosome 
B)  nucleolus 
C)  mitochondrion 
D)  dictyosome (Golgi) 
E)  nucleus 
A)  ribosome 
B)  nucleolus 
C)  mitochondrion 
D)  dictyosome (Golgi) 
E)  nucleus

Question 17

The secondary cell wall forms ______________________________.

Accepted Answer

A)  after the cell reaches mature size and shape 
B)  in some, but not all plant cells 
C)  forms between the cell membrane and the primary cell wall 
D)  from cellulose and lignin 
E)  all of these 
A)  after the cell reaches mature size and shape 
B)  in some, but not all plant cells 
C)  forms between the cell membrane and the primary cell wall 
D)  from cellulose and lignin 
E)  all of these

Question 18

The outer boundary of living protoplasm in a plant cell is a

Accepted Answer

A)  vacuolar membrane. 
B)  primary cell wall. 
C)  secondary cell wall. 
D)  middle lamella. 
E)  plasma membrane. 
A)  vacuolar membrane. 
B)  primary cell wall. 
C)  secondary cell wall. 
D)  middle lamella. 
E)  plasma membrane.

Question 19

Which of the following may be found in plant cell vacuoles?

Accepted Answer

A)  water-soluble pigments 
B)  crystals 
C)  salts 
D)  sugars 
E)  all of these answers are correct 
A)  water-soluble pigments 
B)  crystals 
C)  salts 
D)  sugars 
E)  all of these answers are correct

Question 20

Which of the following are common to nearly all plant and animal cells?

Accepted Answer

A)  plasmodesmata 
B)  cell wall 
C)  centrioles 
D)  plastids 
E)  cell membrane 
A)  plasmodesmata 
B)  cell wall 
C)  centrioles 
D)  plastids 
E)  cell membrane

Exam 3: Cells

The nuclear envelope is porous to allow certain molecules to move between the nucleus and cytoplasm.

Chromosomes shorten and thicken during this stage of the cell cycle.

The fluid within cells in which the nucleus and other organelles are suspended is

According to the endosymbiotic theory

In mitosis the two chromatids of each chromosome separate and move to opposite poles during

__________________ microscopes allow scientists to see atomic structure of molecules.

The preprophase band, the spindle fibers, and the phragmoplast are involved in cell division and are part of the cytoskeleton.

Leeuwenhoek is credited with applying the term cell to the boxlike compartments he saw in cork tissue.

The middle lamella

The cell wall functions _______________________.

The watery fluid found in vacuoles is called

In plants such as ferns, conifers, and flowering plants, mitosis takes place mostly in

Who first saw boxlike compartments with a simple microscope and named them "cells"?

The _______________________ initiates the formation of the new cell wall separating two daughter cells.

Cyclosis is another name for the cell cycle.

The structure known as the ______________ is formed of RNA and associated proteins inside the nucleus.

The secondary cell wall forms ______________________________.

The outer boundary of living protoplasm in a plant cell is a

Which of the following may be found in plant cell vacuoles?

Which of the following are common to nearly all plant and animal cells?

What Is Plant Biology

The Nature of Life

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants: Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

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