More than Just Lines on a Map: Best Practices for U.S Bike Routes
Cell processes ch 2 ppt
1. Table of Contents
Endo and Exo -cytosis
Active and Passive Transport
Cell Division
Cell Processes and Energy – Day 2
Notes
2. Endo and Exo -cytosis
Simulation #1
Simulation #2
Endo – inside, within
Exo – outside, outer
3. Endo and Exo -cytosis
Endocytosis is a process in which cell takes in materials
from the outside by engulfing and fusing them with its
plasma membrane.
Exocytosis: when materials leave the cell by the membrane
"spitting it out" . It is the opposite of endocytosis.
4. The Cell in Its Environment
Crossing the
Cell Membrane
Molecules move into
and out of
a cell by means of
passive or active
transport. Complete
the boxes, and
describe where the
concentration of each
substance is high or
low.
6. To release energy from food
molecules and make ATP!
Why do we need ATP?
To run chemical reactions that keep
us alive and functioning.
Purpose of cellular respiration?
8. Not enough oxygen for aerobic respiration
Fermentation-releases energy from food molecules by producing
ATP in the absence of oxygen. (Anaerobic = no oxygen)
Two types: alcoholic fermentation, lactic acid fermentation
Fermentation: Anerobic respiration
The process by which cells
release energy by breaking
down food molecules without
using oxygen.
9. Cell Division
When one cell splits in half during cell division, the result is two new
cells. Each of those two cells can divide into two more, and so on.
11. Binary Fission: Prokaryotic Cells
Video
Prokaryotes, such
as Bacteria, use
Binary Fission for
cell
division/replication.
12. The diffusion of water through a cells
membrane is called __________ ?osmosis
When a cell needs to remove a large particle,
the process it uses is called
__________________?exocytosis
The process of __________________ occurs
when a cell needs to bring a large particle into
the cell.
endocytosis
13. Movement of particles against the normal flow
of diffusion is called ______________ .active transport
The movement of dissolved materials across a
cell membrane without using cellular energy is
called __________________?passive transport
During cellular respiration _______, a high
energy molecule, supplies energy to the cells.
ATP
14. When your muscles are sore after hard
exercise, it is because the cells don’t have
enough oxygen. This process is called
__________ .fermentation
Chromosomes with matching information are
called __________________.homologous chromosomes
The two copes of chromosomes tht form an X
shape are called _____________.chromatids
15. Mitosis is a form of cell division that
_______________ don’t use since they don’t
have a nucleus, instead they use
_______________ fission .
prokaryotic cells
__________ ensures that each new cell
receives a copy of each chromosome in normal
eukaryotic cells..
Mitosis
When you are hungry your body is telling you
that you need ________ and you are growing
and making new _______.
energy
binary
cells