Exercise 2: The Cell
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It refers to the basic unit of structure in organisms.
cell
Which organelles are exclusive to plant cells?
cell wall, plastids, and central vacuole
Which organelle is found external to the plasma membrane?
cell wall
It refers to the chief component of the primary cell wall.
cellulose
It refers to the extracellular substance that cements the primary cell walls of adjacent cells together.
middle lamella
Which cell wall is the key for the structural integrity of the cell?
secondary cell wall
Which organelle connects the cytoplasm of adjacent cells?
plasmodesmata
Give the staining substance used for the coconut shell on the experiment.
18% alcoholic phloroglucinol-sulfuric acid solution
It refers to the chief component of the secondary cell wall.
lignin
It refers to the space found inner to the secondary cell wall.
lacuna
It refers to the contents of the living cells bounded by the plasma membrane.
protoplast
It refers to the region between the nucleus and the plasma membrane.
cytoplasm
Which organelle refers to the semi-fluid substance where the organelles are suspended?
cytosol
Which organelles refer to cellular extensions that allow for locomotion?
locomotory organelles
Which group of organelles are exclusively found in photosynthetic eukaryotes.
plastids
Give the primary types of plastids.
chloroplasts, chromoplasts, and leucoplasts
Give the two possible compositions of plant crystals.
calcium oxalate and calcium carbonate
Give the 4 types of calcium oxalate crystals.
• raphides (short needles occurring in large numbers) • styloid (large solitary needles) • druse (spherical) • prismatic (prism)
Give the 2 types of calcium carbonate crystals.
• club-like cystolith • worm-like cystolith