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Cell Packet Answers

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Cell Packet Answers What is a cell? The smallest unit that can perform all life processes. A cell is a membrane covered structure that contains all of the materials ... – PowerPoint PPT presentation

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Title: Cell Packet Answers


1
Cell Packet Answers
2
What is a cell?
  • The smallest unit that can perform all life
    processes.
  • A cell is a membrane covered structure that
    contains all of the materials necessary for life.
  • Most cells are too small to be seen with the
    naked eye.

3
Why are cells important to life on Earth?
All living things are made of cells, so if there
were no cells, there would be no living things.
4
What does it mean for an organism to be
single-celled?
  • In an organism made up of only one cell,
    different parts of the cell perform different
    functions.

5
What does it mean for an organism to be
multicellular?
  • Some organisms are made up of trillions of cells.
    In an organism with many cells, different kinds
    of cells perform specialized functions.

6
What are three examples of single-celled
organisms?
Paramecium, Amoeba, Rotifer, Euglena, Bacteria
7
What are three examples of multicellular
organisms?
Human,Oak Tree, Tulip, Fish, Dog, Bear
8
How are bacteria cells different from plant or
animal cells?
  • These cells are simple in structure. Bacteria
    lack a nucleus and other membrane-bound
    organelles. They exist as single-celled
    organisms.
  • Unlike animal and plant cells, bacteria have
    pili, flagella, and most have a cell capsule.
  • Bacteria can be both helpful and harmful to us
    and the environment.

9
(No Transcript)
10
Animal Cell Plant Cell
11
Explain the major differences between plant and
animal cells
A plant cell has a cell wall, animal cells do
not. A plant cell has chloroplasts, animal cells
do not. A plant cell has a large vacuole, an
animal cell has smaller vacuoles.
12
Cell Membrane
A protective barrier that encloses a cell. It
separates the cells contents from the
environment. The outermost structure in cells
that lack a cell wall. In cells that have a cell
wall, the cell membrane lies just inside the cell
wall.
13
Cell Wall
A rigid structure that gives support to a
cell. The cell wall is the outermost structure
of a cell. Plants and algae have cells walls.
14
Cytoplasm
The fluid inside a cell, where organelles are
found.
15
Nucleus
A large organelle that contains the cells DNA,
or genetic material. Sometimes called the
control center of a cell.
16
Chloroplast
Organelles in plant and algae cells in which
photosynthesis takes place. Chloroplasts are
green because they contain chlorophyll. Photosynt
hesis is the process by which plant cells make
food.
17
Mitochondria
Mitochondria is the organelle in which sugar
(food) is broken down to produce
energy. Mitochondria are sometimes called the
power house of the cell.
18
Vacuole
A vacuole is a large vesicle that stores water
and other liquids. A plant cell has a large
vacuole, animal cells have smaller vacuoles.
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