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