Cell Organelle Flashcards: 24 Structures & Functions in Both Directions
Learn 24 common plant and animal cell structures with 48 two-way flashcards linking each name to its primary function.
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These cell organelle flashcards cover 24 common structures encountered when studying plant and animal cells. The 48 text-only cards practice two mappings for every structure: the structure name to its primary function, and an unambiguous primary-function cue back to the name.
The deck distinguishes shared eukaryotic structures from structures that are characteristic of plant cells or common in animal cells. It also separates jobs that are easy to confuse: ribosomes build proteins, rough ER folds and begins processing selected proteins, the Golgi apparatus modifies and sorts cargo, and transport vesicles carry cargo between compartments. Motile cilia are cued by moving fluid across many animal tissue surfaces, while a eukaryotic flagellum is cued by propelling a whole cell.
The sequence starts with whole-cell boundaries and contents, then moves through genetic information and protein handling, energy and recycling, support and movement, and plant-specific structures. Name-to-function and function-to-name cards are interleaved. Paired variants have at least three unrelated cards between them.
This is a focused cell organelle quiz for secondary and introductory biology, not a full biology course. It excludes diagrams and image identification, prokaryotic structures, detailed ultrastructure, pathways, disease and clinical facts, microscopy, and pronunciation. There are no card images.
Facts were checked against the NHGRI Talking Glossary, the NIGMS organelle tour, U.S. government-hosted cell biology references in NCBI Bookshelf, and plant-cell material from the USDA Agricultural Research Service. Every prompt, answer, selection, sequence, and metadata field was independently authored. No source prose, layout, or media was copied. Facts and source materials aren't claimed as ours.
The original deck wording, organization, metadata, and generated cover are dedicated under CC0 1.0 to the extent applicable rights exist. CC0 doesn't apply to source material or source ownership. Independent study deck. Not affiliated with or endorsed by NIH, NHGRI, NIGMS, NCBI, or USDA.
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Kortti 1
Kysymys
Cell structure: plasma membrane → primary function
Vastaus
Selectively controls which materials enter and leave the cell.
Kortti 2
Kysymys
Cell structure: cytoplasm → primary function
Vastaus
Provides the fluid-filled region where organelles are suspended and many cellular reactions occur.
Kortti 3
Kysymys
Cell structure: nucleus → primary function
Vastaus
Stores most of a eukaryotic cell's DNA in chromosomes.
Kortti 4
Kysymys
Cell structure: nucleolus → primary function
Vastaus
Produces ribosomal RNA and assembles ribosomal subunits inside the nucleus.
Kortti 5
Kysymys
Which cell boundary selectively controls materials entering and leaving a plant or animal cell?
Vastaus
Plasma membrane (cell membrane).
Kortti 6
Kysymys
Cell structure: ribosome → primary function
Vastaus
Builds proteins by translating messenger RNA into amino acid chains.
Kortti 7
Kysymys
Which region inside a eukaryotic cell, but outside its nucleus, suspends organelles and hosts many cellular reactions?
Vastaus
Cytoplasm.
Kortti 8
Kysymys
Cell structure: rough endoplasmic reticulum → primary function
Vastaus
Folds and begins processing proteins made for secretion, membranes, or certain organelles.
Kortti 9
Kysymys
Which membrane-enclosed organelle stores most of a plant or animal cell's DNA in chromosomes?
Vastaus
Nucleus.
Kortti 10
Kysymys
Cell structure: smooth endoplasmic reticulum → primary function
Vastaus
Synthesizes lipids for membranes and other cell needs.
Kortti 11
Kysymys
Which structure inside the nucleus produces ribosomal RNA and assembles ribosomal subunits?
Vastaus
Nucleolus.
Kortti 12
Kysymys
Cell structure: Golgi apparatus → primary function
Vastaus
Modifies, sorts, and packages proteins and lipids for delivery to their destinations.
Kortti 13
Kysymys
Which cellular structure translates messenger RNA into an amino acid chain?
Vastaus
Ribosome.
Kortti 14
Kysymys
Cell structure: transport vesicle → primary function
Vastaus
Carries proteins and lipids between membrane-bound compartments or to the plasma membrane.
Kortti 15
Kysymys
Which ribosome-studded membrane network folds and begins processing proteins for secretion or membranes?
Vastaus
Rough endoplasmic reticulum (rough ER).
Kortti 16
Kysymys
Cell structure: mitochondrion → primary function
Vastaus
Generates ATP by converting energy from food molecules in many eukaryotic cells.
Kortti 17
Kysymys
Which ribosome-free endoplasmic reticulum network synthesizes lipids for membranes and other cell needs?
Vastaus
Smooth endoplasmic reticulum (smooth ER).
Kortti 18
Kysymys
Cell structure: lysosome → primary function
Vastaus
Breaks down and recycles macromolecules and worn cell parts with acidic enzymes, especially in animal cells.
Kortti 19
Kysymys
Which eukaryotic organelle modifies, sorts, and packages proteins and lipids for delivery?
Vastaus
Golgi apparatus.
Kortti 20
Kysymys
Cell structure: peroxisome → primary function
Vastaus
Breaks down fatty acids through oxidation and uses catalase to remove the resulting hydrogen peroxide.
Kortti 21
Kysymys
Which small membrane-bound carrier moves protein or lipid cargo between cell compartments?
Vastaus
Transport vesicle.
Kortti 22
Kysymys
Cell structure: cytoskeleton → primary function
Vastaus
Supports cell shape and organizes movement of the cell and its internal components.
Kortti 23
Kysymys
Which organelle generates ATP by converting energy from food molecules in many plant and animal cells?
Vastaus
Mitochondrion.
Kortti 24
Kysymys
Cell structure: microtubule → primary function
Vastaus
Forms rigid cytoskeletal tracks for organelle transport and helps build the mitotic spindle.
Kortti 25
Kysymys
Which acidic, enzyme-filled organelle breaks down and recycles macromolecules and worn parts in many animal cells?
Vastaus
Lysosome.
Kortti 26
Kysymys
Cell structure: microfilament (actin filament) → primary function
Vastaus
Drives cell-surface shape changes and contraction through thin actin-based fibers.
Kortti 27
Kysymys
Which eukaryotic organelle oxidizes fatty acids and uses catalase to break down hydrogen peroxide?
Vastaus
Peroxisome.
Kortti 28
Kysymys
Cell structure: intermediate filament → primary function
Vastaus
Provides tensile strength that helps many animal cells withstand mechanical stress.
Kortti 29
Kysymys
Which network of protein filaments supports cell shape and organizes cell and organelle movement?
Vastaus
Cytoskeleton.
Kortti 30
Kysymys
Cell structure: centrosome → primary function
Vastaus
Organizes microtubules in most animal cells, including those used to form the mitotic spindle.
Kortti 31
Kysymys
Which rigid, hollow cytoskeletal filament serves as a track for organelle transport and helps form the mitotic spindle?
Vastaus
Microtubule.
Kortti 32
Kysymys
Cell structure: centriole → primary function
Vastaus
Can become a basal body that anchors and organizes a cilium or flagellum in many animal cells.
Kortti 33
Kysymys
Which thin actin-based cytoskeletal filament drives cell-surface shape changes and contraction?
Vastaus
Microfilament (actin filament).
Kortti 34
Kysymys
Cell structure: cilium → primary function
Vastaus
Moves fluid or mucus across the surfaces of many animal tissues when motile.
Kortti 35
Kysymys
Which rope-like cytoskeletal filament gives many animal cells tensile strength against mechanical stress?
Vastaus
Intermediate filament.
Kortti 36
Kysymys
Cell structure: flagellum → primary function
Vastaus
Propels a eukaryotic cell through fluid, as in a sperm cell.
Kortti 37
Kysymys
Which microtubule-organizing center in most animal cells helps arrange the mitotic spindle?
Vastaus
Centrosome.
Kortti 38
Kysymys
Cell structure: cell wall → primary function
Vastaus
Provides rigid external support and resists internal turgor pressure in plant cells.
Kortti 39
Kysymys
Which cylindrical microtubule structure can become the basal body that anchors a cilium or flagellum?
Vastaus
Centriole.
Kortti 40
Kysymys
Cell structure: chloroplast → primary function
Vastaus
Carries out photosynthesis in photosynthetic plant cells, converting light energy into chemical energy stored in sugars.
Kortti 41
Kysymys
Which short, often numerous eukaryotic surface projection beats to move fluid or mucus across many animal tissues?
Vastaus
Cilium.
Kortti 42
Kysymys
Cell structure: central vacuole → primary function
Vastaus
Stores water and dissolved substances and helps maintain turgor pressure in many mature plant cells.
Kortti 43
Kysymys
Which long eukaryotic surface projection usually occurs one or a few per cell and propels the whole cell through fluid?
Vastaus
Flagellum.
Kortti 44
Kysymys
Cell structure: plasmodesma → primary function
Vastaus
Forms a channel through plant cell walls for direct transport and signaling between adjacent cells.
Kortti 45
Kysymys
Which rigid layer outside a plant cell's plasma membrane supports the cell and resists turgor pressure?
Vastaus
Cell wall.
Kortti 46
Kysymys
Which organelle converts light energy into chemical energy during photosynthesis in photosynthetic plant cells?
Vastaus
Chloroplast.
Kortti 47
Kysymys
Which large organelle in many mature plant cells stores water and dissolved substances while supporting turgor pressure?
Vastaus
Central vacuole.
Kortti 48
Kysymys
Which channel through a plant cell wall allows materials and signals to pass directly between adjacent cells?
Vastaus
Plasmodesma.
48 korttia
Cell Organelle Flashcards: 24 Structures & Functions in Both Directions
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