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2.2: The Cell Is The Basic Unit of Life
CELLS to TISSUES to ORGANS to SYSTEMS
Page 103-109
Learning Outcome #2: Investigate and describe the role of cells within living things
2a) describe the role of cells as a basic unit of life
2b) analyze similarities and differences between single-celled and multicelled organisms
2c) distinguish between plant and animal cells
THE CELL Use your textbook to answer the following questions.
1) The smallest unit of life is known as the __________________. An individual unit of
life.
2) Cells with similar structures and functions form ____________________ and these
groups work together for a common purpose form _______________
3) Cells are the basic unit of life as they can ________________________ all the
_____________________ (obtain nutrients, remove waste, and reproduce) that life
depends on. (page 86)
4) Look at the size difference of the following single celled organisms and the
individual plant and animal cells.
5) Each type of cell has ORGANELLES that have a job or role to do within the cell.
Most cells have the same organelles. Complete the chart below based on the
organelles, their functions and features to identify them. (pg. 103 & 108)
LETTER
FROM
BELOW
CELL
STRUCTURE
Vacuoles
Mitochondria
(Singular is
Mitochondrion)
FEATURES TO
IDENTIFY IT
Looks like a thin line
that surrounds the
whole cell
A liquid inside the cell,
which has grainy-like
bits in it
A fairly dark, spherical
structure that’s
usually near the center
of the cell.
Clear liquid filled
spaces in various
places within the
cytoplasm
FUNCTION
A “controllable gateway”
that lets needed materials
in and waste material out
The powerhouses of the cell
where chemical reactions
convert
_____________________ to
______________________
6) The following cell is an example of a ______________________ cell. Label the cells
organelles on the cell below. (pg 109)
A
C
D
E
B
7) The following diagram is of a _________________________ cell. A plant cell has two
different organelles that an animal cell does not have. Label the following
diagram.
A
F
G
B
C
D
E
8) Complete the chart below about the organelles in a plant
LETTER
CELL STRUCTURE FEATURES TO IDENTIFY
Looks like a thin line that
surrounds the whole cell
A rigid, frame-like
covering that surrounds
the cell membrane
A liquid inside the cell,
which has grainy-like bits
in it
A fairly dark, spherical
structure that’s usually
near the center of the cell.
Vacuoles
Mitochondria
(Singular is
Mitochondrion)
Clear liquid filled spaces
in various places within
the cytoplasm
Found in the cells of the
green parts of
_________________
cell.
FUNCTION
A “controllable gateway”
that lets needed
materials in and waste
material out
“kitchen”-contains the
nutrients required to
maintain its life
processes.
“command centre”directs all cellular
activities (movement,
growth, replacement)
“storage rooms”nutrients, water, waste,
etc.
The powerhouses of the
cell where chemical
reactions convert energy
to useable form the cell
can use.
9)
List two organelles found in a plant and not animal cell.
10) Explain why these two organelles are found in a plant cell and not animal cells?
11) Take a close look at the vacuoles in a plant and animal cell. Describe the
difference you see. Explain why this would be a third difference between plant
and animal cells.
2.3 ORGANISMS CAN BE SINGLE-CELLED OR MULTICELLED:
Page 110-114
1. Unicellular means the organism is made up of ______ cell. Two examples would be
_______________ and ________________.
Why are unicellular organisms not
classified as simple?
2. Multicellular means the organism is made up of __________ cells. Two examples
are ______________________ and _________________________. How do multicellular
organisms perform functions such as feeding, moving, etc.?
3. Amoebas and paramecium are examples of common __________________ organisms
that live in water. They are made up of a ___________ ___________. They are able
to perform all the characteristics of living things. Amoeba move using a
__________________ (foot like projection) and paramecium use _________________ for
locomotion.