Transcript 2.5 Organelles Cooperatex

Organelles Cooperate
3.3 Handout
• Color your handout as you study the
information in this PowerPoint.
Area A: Endocytosis, Digestion, Respiration
• Cell membrane pockets inward to form a food vacuole.
• Highlight the cell membrane with a highlighter.
• A Lysosome fuses with it to mix its digestive enzymes with the food. Color the
lysosome green.
• Glucose from the food is released into the cytoplasm and absorbed by the
mitochondria. Color the mitochondria blue.
• Mitochondria perform respiration. During respiration mitochondria use
glucose to make ATP.
• ATP is “energy cash” for the cell, the cell’s only direct energy source.
Area B. Making Ribosomes in the Nucleolus
• Color the nucleus and nucleolus.
• The nucleus houses DNA and the
nucleolus.
• The nucleolus makes ribosomes.
• Ribosomes are released into the
cytoplasm where they can
function freely or attach to the ER.
Area C. Protein Synthesis
• Highlight RNA.
• RNA is a copy of DNA that is
allowed to leave the nucleus and
lands on a ribosome. It is a copy
of your genetic code.
• A ribosome translates your RNA
into a protein. The ER receives the
completed protein from the
ribosome.
• Color the ER light purple.
• The protein is then shipped to the Golgi Apparatus.
Area D.
• An ER vesicle containing the
protein leaves the ER and goes
to the Golgi Apparatus.
• Color the Golgi Apparatus
orange.
• The Golgi Apparatus labels a protein with a
carbohydrate label that tells it where to go, like
an address label at a post office.
• The labelled protein gets sent to the cell
membrane for export.
Area E. Exocytosis
• The labelled protein in a Golgi vesicle
goes to the cell membrane.
• The Golgi vesicle and cell
membrane fuse together.
• Outline the Golgi vesicle membrane
in orange and the cell membrane with a
highlighter.
• Exocytosis occurs when the Golgi vesicle opens to the
outside to release its labeled protein. The labelled
protein is free to leave the cell perform a function
outside the cell.
• For example, the protein human growth hormone
(HGH) is formed in brain cells and travels through your
blood to land on other cells to make you grow.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Be able to use these terms on an assessment:
Endocytosis
(food) vacuole
Lysosome
Glucose
Mitochondrion (mitochondria pl)
ATP
Respiration
Nucleus
Nucleolus
RNA
Ribosome
Endoplasmic Reticulum
Golgi Apparatus (vesicle)
Exocytosis