Biology · K-12

Cell Biology

Cell structures, organelles, and their functions for a middle/high school life science course.

35 cards · basic cards · AI-written, checked twice. Edit anything.

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What is the cell membrane?
A phospholipid bilayer that surrounds the cell and controls what enters and exits.
What is the nucleus?
A membrane-bound organelle that contains DNA and controls cellular activities.
What do mitochondria do?
Break down glucose to produce ATP, the energy currency of the cell.
What is the function of a ribosome?
Synthesizes proteins by reading messenger RNA (mRNA) instructions.
What is the endoplasmic reticulum?
A network of membranes in the cytoplasm that synthesizes proteins (rough ER) or lipids (smooth ER).
What is the Golgi apparatus?
An organelle that packages and ships proteins and lipids to their destinations.
What are lysosomes?
Membrane-bound organelles filled with enzymes that break down waste and cellular debris.
What is the function of a vacuole?
Stores water, nutrients, and waste products.
What are chloroplasts?
Organelles in plant cells where photosynthesis occurs, producing glucose from sunlight.
What is the main difference between prokaryotic and eukaryotic cells?
Eukaryotic cells have a membrane-bound nucleus and organelles; prokaryotic cells do not.
What is cytoplasm?
A gel-like substance inside the cell that contains organelles and fills the space between them.
What is the nucleolus?
A region inside the nucleus where ribosomal RNA (rRNA) is made.
What are chromosomes?
Structures made of DNA and protein that carry genetic information.
What is the function of centrioles?
Organize the spindle fibers that separate chromosomes during cell division.
What is the cell wall?
A rigid outer layer in plant cells made of cellulose that provides structure and protection.

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