BIOLOGY UNIT 3 Study Guide

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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


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