Name: ______________________________________
SCIENCE – THE CELL
CTED-1
April 15, 2008
Section #/color: ___ / ________
SCIENCE – THE CELL
What, Why, Where, When and How of Cell Transport, Energy, and Division
An Introduction and Comparison Activity
How is The Cell Cycle connected to the life processes and our 3 focus topics?
1. In each box, fill in where each life process happens.
2. In each star, fill in where cell energy, transport and division are happening.
E, T,
D
E,T
E,T
E,T
Use the chart below to compare and organize your current knowledge about cell transport, energy, &
division.
The WHAT's, WHY's, WHERE's, WHEN's, WHO's, and HOW's of Cell Transport, Energy, and Division
?
What
Why
Where
When
Who
How
TRANSPORT
The process of how cells get
materials into and out of
themselves across the cell
membrane
In order to do the life processes,
cells have to import certain
materials and export the
materials that the make as well
as wastes
Cell Membrane
ENERGY
The process by which cells
obtain and use energy
DIVISION
The process by which a cell
divides to become to new cells
In order to do the life
processes, cells need energy to
make them happen
Cells are limited in size; when
they become too big, they
can’t do the life processes and
must divide
Mitochondria
Chloroplast
When materials are needed by
Whenever the cell needs
the cell for moving, responding to energy to move, respond to
change, growing and developing, change, grow and develop,
metabolizing, reproducing
reproduce
When important materials and/or
wastes are made by the cell when Energy is made in the life
it has been moving, responding to process of metabolism
change, growing and developing,
metabolizing, reproducing
ALL ORGANISMS!
ALL ORGANISMS!
Passive Transport:
Obtain energy via
Diffusion – movement of
photosynthesis in the
molecules down the gradient
chloroplast (water, sunlight,
from high to low concentration
chlorophyll, carbon dioxide
Osmosis – movement of WATER combine to make oxygen and
down the gradient from high to
glucose), chemosynthesis, and
low concentration
“eating” (ominvores,
herbivores, carnivores,
Active:
decomposers, scavengers, etc.)
Protein Pumps – uniport (one
molecule against the gradient),
Use the energy via
symport (two different molecules RESPIRATION! Glucose
against the gradient in the same
and oxygen combine to make
direction), antiport (two different ATP, carbon dioxide and
molecules against the gradient in water.
opposite directions)
When no oxygen is present,
Anaerobic respiration is
Vesicle/Vacuole Assisted –
performed…ATP is made but
Endocytosis (large molecule
w/o oxygen and other bibrought IN), Exocytosis (large
products are created.
molecule sent OUT)
Nucleus and cytoplasm
When the cell has become to
big for it to be able to sustain
the life processes
ALL ORGANISMS!
Six steps:
Interphase – DNA doubles
Prophase – nuclear
membrane disappears,
chromatin becomes rod-like
sister chromatids
Metaphase – chromatids
attach to spindle and line up
in the middle of the cell
Anaphase – sister chromatids
separate
Telophase – nuclei form
around sister chromatids and
chromatids become
chromatin again
Cytokinesis – cell completely
separates into two identical
cells.