BIOLOGY UNIT 3 Study Guide
True
Current scientific methods cannot distinguish between all mircroorganisms.
reproduction, excretion, digestion, and respiration
In an amoeba, there are 4 operational organ systems. They are:
hypertonic
The relative concentration of water in a(n) ___ solution is low
True
We are still not certain of the taxonomic classification of all organisms.
nucleolus
a small structure within the nucleus
cell wall
outer covering around the plant cell made of fibrous material
epidermis
outer covering of a cell
hypertonic
In an external solution, water will flow out of the cell because it is ___.
CO2 diffuses passively out of the cell O2 diffuses passively when converted to CO2
In cellular respiration:
False
The simple cell division of a plant cell and an animal cell occur in the same way AND process.
Organismal Theory
the thought that a functioning organism represents life
Cell Theory
the thought that each cell possesses a life of its own
DNA
contains coded information
nucleus
control center of the cell
plasma membrane
controls what goes in and out of a cell
leukocyte
fighting disease by antibody production or phagocytosis is done by a(n)
cytoplasm
includes all the cellular material outside the nucleus
R-RNA
is not produced in the cytoplasm of the cell
vacuoles
large storage structures inside cells
Hypotonic
External fluid will flow through a plant cell because the external water concentration is greater and the external salt concentration is less. True
cell
In the Cell Theory, the ___ is the basic unit of life.
phagocytosis
Some leukocytes absorb entire bacteria ia the process of ___.
diffusion
The natural tendency of molecules is to love from higher concentration to lower concentration is known as ___.
plasma membrane
acts as a gatekeeper in the animal cell; allows some substances and excludes others
organism
any functional plant or animal with interrelated parts
organism
In the Organismal Theory, the ___ is the basic unit of life
mitochondria
Inside the ___ the Krebs cycle takes place.
computer
The simplest operation of a cell is still more complex and complicated than an operation of a(n) ___.
Colonial organisms
similar bacteria or protozoa that group together
organism
the functional part of a plant or organism
