What is a nitrogenous base?
Fall Final Review

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•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A nitrogenous base is a molecule that contains nitrogen and has the chemical properties of a base. It is a fundamental component of nucleotides, which make up DNA and RNA.
2.
FLASHCARD QUESTION
Front
What is passive transport?
Back
Passive transport is the movement of molecules across a cell membrane without the need for energy input, typically occurring along the concentration gradient.
3.
FLASHCARD QUESTION
Front
What is diffusion?
Back
Diffusion is the process by which molecules spread from areas of high concentration to areas of low concentration until equilibrium is reached.
4.
FLASHCARD QUESTION
Front
What is active transport?
Back
Active transport is the movement of molecules against their concentration gradient (from low to high concentration) using energy, usually in the form of ATP.
5.
FLASHCARD QUESTION
Front
What is ATP?
Back
Adenosine triphosphate (ATP) is the primary energy carrier in living organisms, used to power various cellular processes.
6.
FLASHCARD QUESTION
Front
What is osmosis?
Back
Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.
7.
FLASHCARD QUESTION
Front
What is a phosphate group?
Back
A phosphate group is a functional group consisting of a phosphorus atom bonded to four oxygen atoms, important in energy transfer and storage in cells.
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