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Biology NEET - XI: Chapter 8- Cell the unit of life Part 4

Biology25 CardsCreated about 2 months ago

This deck covers key concepts related to cell organelles, their functions, and related diseases, focusing on lysosomes, microbodies, and mitochondria.

How are secondary lysosomes formed?

Primary lysosomes + food vacuole
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Key Terms

Term
Definition
How are secondary lysosomes formed?
Primary lysosomes + food vacuole
What do secondary lysosomes contain?
Active enzymes
What are tertiary lysosomes?
Contain undigested waste
What is the function of an autophagosome?
Recycling of old worn out cell organelles
How are lysosomes related to Tay-Sachs and Gaucher's disease?
These diseases occur because of the accumulation of tertiary lysosomes
What make lysosomes rupture?
Membrane labilizers

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TermDefinition
How are secondary lysosomes formed?
Primary lysosomes + food vacuole
What do secondary lysosomes contain?
Active enzymes
What are tertiary lysosomes?
Contain undigested waste
What is the function of an autophagosome?
Recycling of old worn out cell organelles
How are lysosomes related to Tay-Sachs and Gaucher's disease?
These diseases occur because of the accumulation of tertiary lysosomes
What make lysosomes rupture?
Membrane labilizers
Give examples of membrane labilizers.
Vit A, vit B, sex hormones, bile salts etc
Give examples of membrane stabilizers.
Cortisol, cholesterol, heparin
Can a lysosome rupture on its own?
No
What kind of membrane surrounds the microbodies in a cell?
Single membrane
Which microbody is found in plant cells only?
Sphaerosome
What is the function of sphaerosome?
Lipid storage
Which microbody is known as plant lysosome?
Sphaerosome
Where are glyoxisomes found?
Seeds of plants and fungi
What is the function of glyoxisome?
Conversion of oil/fat to sugar/carbohydrate
Which is the main class of enzymes found in peroxisomes of plants?
Glycolate oxidase
Which is the main class of enzymes found in peroxisomes of animals?
Purine/urate oxidase
Can double membrane bound organelles stay alive outside a cell?
Yes
Which organelles are known as cell within a cell?
Double membrane bound organelles
Which is the largest organelle of an animal cell?
Mitochondria
Aquaporins are present on which membrane of mitochondria?
Outer membrane
Where is succinic dehydrogenase enzyme located in a mitochondria?
Inner membrane
Where are the enzymes of Kreb's cycle present in a mitochondria?
In the matrix
Where does the β oxidation of fatty acids occur in a cell?
Mitochondria
Which is the largest organelle of a plant cell?
Plastids