Biology Unit 3 Quiz 1
organism
A functional plant or animal
vacuole
Fluid filled sacs within the cytoplasm of a cell which are bound by a membrane
taxonomic
The _________________________________ classification of some organisms is still uncertain.
algae Caulerpa nuclei
The _________________________________________________________ is an example of Organismal Theory because it is not divided into cells but has many ___________________.
cell
The basic unit of life according to the cell theory
cell theory
The basic unit of life is the cell
ctyoplasm
The living substance of a cell, excluding the nucleus
plasma membrane
The semipermeable membrane surrounding the cell
life cycle
The stages of a plant or animal's life
resolving nosepiece
What part of a microscope rotates to change from the low power objective lens to the high power objective lens? fine adjustment knob resolving nosepiece coarse adjustment knob
ocular lens
Which lens is closest to your eye when looking through a microscope? ocular lens objective lens
cell organism
According to the Cell Theory, the ________ is the basic unit of life; according to the Organismal Theory the _____________________________ is the basic unit.
acellular organism
An organism not divided into cells
unicellular organism
An organism that only has one cell for its body
brain
Animals and man exhibit life through the physical medium of the ______________ and central nervous system.
organism
Any living thing with interrelated parts is considered to be a(n) _____________________________
magnifying glass
A "flea glass" is another name for a ________________________________________________________________________
vacuole
A cavity located within plant cells which store food is called the ___________________________
life
According to the Bible, " ________" was given by God.
cell wall
Cells of animals do not have: nuclei cell wall plasma membrane cytoplasm
False
Current scientific methods can conclusively distinguish between all microorganisms. True False
the high expense
From the following list, which is a limitation to using an electron microscope? can only view live samples short sample preparation time the high expense the limited amount of magnification
False
Hans and Zaccharias Janssen have made contributions to the development of microscopes through their work with mathematics. True False
True
Life cannot be completely defined by the physical sciences. True False
microorganisms
Living creatures which can be seen only by using a microscope are called ___________________________________________________
False
Man is more complex but otherwise belongs to the animal kingdom. True False
the fluorescence microscope the dark field microscope the polarizing light microscope the phase contrast microscope the bright field microscope
Select the five variations of the light microscope. the fluorescence microscope the dark field microscope the polarizing light microscope the electron microscope the phase contrast microscope the bright field microscope
cell wall
Serves to give strength and rigidity to the plant cell
matter
That which occupies space and has mass
organismal theory
The basic unit of life is the organism itself
cell wall
The fibrous outer covering surrounding plant cells is the: plasma membrane cytoplasm epidermis cell wall
nucleus
The internal spherical structure in a cell which serves as the central control
250,000 times
The level of magnification that produces the best images using an electron microscope is ____________________________________
epidermis
The outer layer of cells of the stems, roots, and leaves of plants
acts as a selective gatekeeper
The plasma membrane of a human cell: acts as a selective gatekeeper prevents outside substances from entering prevents materials from exiting the cell provides rigidity
nucleolus
They are thought to make r-RNA to construct the ribosomes
Cell Theory Organismal Theory
Two theories relating to the cell are ____________________________________ and _____________________________________________________________________. Cell Theory Organismal Theory Theory of Relativity Quantum theory
used mathematics to improve the focus of the lens
What is one of the contributions made to the development of the microscope by Galileo? created the first microscope discovered the electron microscope first to document careful observations of different cell types identifying the first cell used mathematics to improve the focus of the lens built microscopes capable of magnification of up to 1250 x using regular light
first to document careful observations of different cell types
What is the contribution made to the development of the microscope by Anton van Leeuwenhoek? built microscopes capable of magnification of up to 1250 x using regular light first to document careful observations of different cell types identifying the first cell created the first microscope used mathematics to improve the focus of the lens discovered the electron microscope
built microscopes capable of magnification of up to 1250 x using regular light
What is the contribution made to the development of the microscope by Charles A. Spencer? first to document careful observations of different cell types built microscopes capable of magnification of up to 1250 x using regular light used mathematics to improve the focus of the lens discovered the electron microscope identifying the first cell created the first microscope
discovered the electron microscope
What is the contribution made to the development of the microscope by Max Knott and Ernst Ruska? used mathematics to improve the focus of the lens created the first microscope built microscopes capable of magnification of up to 1250 x using regular light identifying the first cell discovered the electron microscope first to document careful observations of different cell types
identifying the first cell
What is the contribution made to the development of the microscope by Robert Hooke? first to document careful observations of different cell types created the first microscope discovered the electron microscope built microscopes capable of magnification of up to 1250 x using regular light identifying the first cell used mathematics to improve the focus of the lens
binocular
What kind of microscope allows you to look through two eyepieces? scanning electron microscope binocular monocular
the resolving power of the microscope
What limits the amount of magnification that can be produced using light? the electrons being absorbed or bounced off an object how much light the specimen being observed produces the amount of light let in the resolving power of the microscope
when using the high power objective
When are you never supposed to use the coarse adjustment knob? when using the low power objective when using the high power objective
objective lens
Which lens is closest to the object that you are viewing? ocular lens objective lens
structure and rigidity
Why do plants need cell walls? protection structure and rigidity contains cytoplasm food storage
slime mold
A type of protist which has a stage in its life cycle when it is not divided into cells