Biology - HOT Science Lab

Teacher
6. Which organelle is like a road system endoplasmic reticulum
After
activity:
What the teacher will do:
a. Have the student groups present their cell models and explain how they
created their model. Randomly ask individual students to identify 5 parts
and explain their function.
b. Answer Key for Results/Conclusion:
1. Complete the following chart:
ORGANELLE LOCATION DESCRIPTION FUNCTION
cell wall plant, not animal *outer layer
*rigid, strong, stiff
*made of cellulose
*support (grow tall)
*protection
*allows H2O, O2, CO2 to
pass into and out of cell
cell membrane both plant/animal *plant - inside cell wall *support
*animal - outer layer; *protection
cholesterol
*controls movement of
*selectively permeable materials in/out of cell
*barrier between cell and its
environment
*maintains homeostasis
nucleus both plant/animal *large, oval *controls cell activities
nuclear both plant/animal *surrounds nucleus *Controls movement of
membrane
*selectively permeable materials in/out of nucleus
cytoplasm both plant/animal *clear, thick, jellylike *supports /protects cell
material and organelles organelles
found inside cell
membrane
endoplasmic both plant/animal *network of tubes or *carries materials through
reticulum (E.R.)
membranes
cell
ribosome both plant/animal *small bodies free or *produces proteins
attached to E.R.
mitochondrion both plant/animal *bean-shaped with inner *breaks down sugar
membranes
molecules into energy
vacuole plant - few/large *fluid-filled sacs *store food, water, waste
animal - small
(plants need to store large
amounts of food)
lysosome plant – uncommon *small, round, with a *breaks down larger food
animal - common membrane
molecules into smaller
molecules
*digests old cell parts
chloroplast plant, not animal *green, oval usually *uses energy from sun to
containing chlorophyll make food for the plant
(green pigment)
(photosynthesis)
2. Complete a Venn Diagram to compare plant and animal cells. Use table
above to check student‘s diagram.
3. Identify two similarities and two differences between plant and animal
cells. Similar: nucleus, plasma membrane, mitochondria Different: plant
cells have cell walls and chloroplasts; animal cells have neither
Biology HSL Page 152
Curriculum and Instruction