Chapter 6: A Tour of the Cell Flashcards Preview

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Flashcards in Chapter 6: A Tour of the Cell Deck (21):
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Prokaryote domains

Bacteria, archaea

1

Eukaryote domains

Animals, fungi, plants, and protists

2

Chromatin

The complex of DNA and protein housed in the nucleus

3

Nucleolus

Region of the nucleus where rRNA complexes with proteins

4

Ribosomes

Protein factories

5

Golgi apparatus

Operates like a postal system -- shipping proteins

6

Lysosomes

Membrane-bound sacs of hydrolytic enzymes; digestive organelle

7

Vacuoles

Membrane-bound vesicles; hold food/water

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Central vacuoles

Concentrate and contain compounds not found in the cytosol

9

Chloroplasts

Site of photosynthesis

10

Peroxisomes

Single-membrane-bound compartments in the cell responsible for various metabolic functions that involve the transfer of hydrogen from compounds to oxygen, producing hydrogen peroxide

11

Cytoskeleton

A network of protein fibers that runs throughout the cytoplasm, responsible for support

12

Microtubules

Cytoskeleton fibers

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Microfilaments

Cytoskeleton fibers, but much smaller than microtubules

14

Intermediate filaments

In between microtubules and microfilaments

15

Centrosomes

Region located near nucleus where microtubules grow

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Centrioles

Located within the centrosomes of animal cells where they replicate before cell division

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Flagella

Long and few in number

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Cilia

Much shorter and more numerous than flagella

19

Desmosomes

Fasten adjacent animal cells together

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Plasmodesmata

Channels that perforate adjacent plant cell walls and allow the passage of some molecules from cell to cell