Biology Section 4 Cells of the Animal Kingdom
Biology 4.7: Cellular Structure – Lysosomes
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Lysosomes hold enzymes with the purpose
of digesting things. The organelle used to digest food or
break down the cell when it dies is the l______.
The organelle that goes to work when the cell absorbs or
eats some food is the l_______.
The enzymes in the l_______ break down complex
molecules that can include complex sugars and proteins.
Enzyme proteins are first created in the rough
endoplasmic reticulum, sent to the Gogli apparatus to be
made into digestive enzymes, and then are pinched off
the Gogli apparatus as l______.
Enzyme proteins are first created in the r_____
endoplasmic reticulum.
1
Lysosomes hold enzymes that were created by the rough
endoplasmic r_______.
Enzymes move from the rough ER to the G_____
apparatus, where they become digestive e_______.
Digestive enzymes are pinched off the Gogli apparatus as
l______.
The organelle used to digest food or break down the cell
when it dies is the l______.
L______ float in the cytoplasm in a very specialized
vesicle until they are needed to digest food, remove a
dead organelle, or attack and absorb viruses or bacteria.
Lysosomes digest excess or worn-out o______.
2
Lysosomes digest f____ particles.
Lysosomes digest and engulf v_____ or b_______.
Lysosomes have a single lipid m______ cell wall.
The organelle used to digest food or break down the cell
when it dies is the l______.
Lysosomes float in the cytoplasm in a very specialized
vesicle until they are needed to digest f_____, remove a
dead o_______, or attack and absorb a v_____ or
b______.
Once the material is inside the cell, the lysosomes attach
and release their e______ to digest the particle in a
process called phagocytosis.
3
The lysosome attaches and absorbs a food particle or
bacteria in a process called p_______.
When the lysosome surrounds and absorbs the particle it
becomes a phagolysosome. A lysosome absorbs the
particle by p______ and then becomes a p______.
After phagocytosis, the lysosome is known as a
p_______.
A particle is absorbed into a lysosome by p______ and
becomes a p_______.
When the phagolysosome has digested the particle it will
release the broken down results out of the cell in a
process called exocytosis. Excretion of digested particles
is called e________.
Dumping the garbage out of the cell is called e_______.
4
The organelle used to digest food or break down the cell
when it dies is the l______.
Lysosomes float in the cytoplasm in a very specialized
vesicle until they are needed to digest f_____, remove a
dead o_______, or attack and absorb a v_____ or
b______.
The lysosome attaches and absorbs a food particle or
bacteria in a process called p_______.
After phagocytosis, the lysosome is known as a
p_______.
Excretion of digested particles is called e________.
Lysosomes recycle the cell's organic material in a
process known as autophagy. The process of digestion
by a cell through the action of enzymes within the cell is
called a________.
5
An essential, homeostatic process by which cells break
down their own components is known as a_______.
The enzymes in the lysosomes break down complex
molecules, a process called a______.
Review
The organelle used to digest food or break down the cell
when it dies is the l______.
The enzymes in the l_______ break down complex
molecules that can include complex sugars and proteins.
Lysosomes float in the cytoplasm in a very specialized
vesicle until they are needed to digest f_____, remove a
dead o_______, or attack and absorb a v_____ or
b______.
Enzyme proteins are first created in the r_____
endoplasmic reticulum.
Enzymes move from the rough ER to the G_____
apparatus, where they become digestive e_______.
The lysosome attaches and absorbs a food particle or
bacteria in a process called p_______.
6
After phagocytosis, the lysosome is known as a
p_______.
Excretion of digested particles is called e________.
The enzymes in the lysosomes break down complex
molecules, a process called a______.
7