| A | B |
|---|
| Cell wall | A protective layer external to plasma membrane in plant cells, bacteria, fungi, and some proteins |
| Collagen | A glycoprotein in the extracellular matrix of animal cells that forms strong fibers |
| Flagella | A long cellular appendage specialized for locomotion, formed from a core of nine outer doublet microtubules and two inner single microtubules, ensheated in an extension of plasma membrane |
| Cilia | A short cellular appendage specialized for locomotion, formed from a core of nine outer doublet microtubules and two inner single microtubules unsheathed in an extension of plasma membrane |
| Plastid | One of a family of closely related plant organelles, including chloroplasts, chromoplasts, and amyloplasts |
| Amyloplast | colorless plastids that store starch particularly in roots and tubers |
| Chromoplast | enriched in pigments that give fruits and flowers their orange and yellow hues |
| Chloroplast | contain green pigment chlorophyll among will enzymes and other molecules that function in the photosynthetic production of food |
| food vacuole | formed by phagocytosis, membrane- enclosed sacs within cell |
| Contractile vacuole | pump excess water out of the cell |
| Central vacuole | part of endomembrane system |
| Tonoplast | A membrane that encloses the central vacuole in a plant cell, separating the cytosol from the cell sap |
