What is the smallest unit of life?
Cells and Cell Transport

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Science
•
9th - 10th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Cells are the smallest unit of life, capable of performing all life processes.
2.
FLASHCARD QUESTION
Front
What structure is responsible for transporting substances across the cell membrane?
Back
Transport or channel proteins facilitate the movement of substances across the cell membrane.
3.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the passive movement of molecules from an area of higher concentration to an area of lower concentration, requiring no energy.
4.
FLASHCARD QUESTION
Front
What is the main difference between prokaryotic and eukaryotic cells?
Back
Prokaryotic cells do not have a nucleus, while eukaryotic cells do.
5.
FLASHCARD QUESTION
Front
What is a cell wall?
Back
A cell wall is a rigid outer layer found in plant cells that provides structure and protection.
6.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.
7.
FLASHCARD QUESTION
Front
What are mitochondria?
Back
Mitochondria are organelles in eukaryotic cells that produce energy through cellular respiration.
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