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Botany Quiz 2 > Botany Quiz 2 > Flashcards

Botany Quiz 2 Flashcards

1
Q

Heterocysts—what do they do?

A

Fix nitrogen

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2
Q

Bacterial cells lack

A

Nuclear envelope, plastids, mitochondria, membrane bound organelles

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3
Q

Binary fission

A

Asexual reproduction used by prokaryotic organisms

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4
Q

gelatinous sheath

A

A transparent mucous-like envelope around the cells

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5
Q

Oscillatoria

A

Long filament of cells; photoautotrophs; Cyanobacteria

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6
Q

Gloeocapsa

A

Cyanobacteria; unicellular with gelatinous sheath surrounding cell; looks like cluster of colonies

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7
Q

Chlorophyll A and phycobilins

A

The blue-green color in Cyanobacteria

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8
Q

Plant cells have

A

Cellulose cell wall, protoplast

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9
Q

True branching

A

Branches arising by lateral cell divisions of the main filament

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10
Q

False branching

A

Outgrowth of filaments adjacent to dead or specialized cells; filament curves

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11
Q

3 forms of bacterial cells

A

Cocci, bacilli, spirilli

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12
Q

2 bacteria in yogurt

A

Lactobacillus bulgaricus (bacilli), Streptococcus thermophilus (cocci)

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13
Q

Akinetes

A

Large, oval, dense, spore-like cells that allow blue-green bacteria to survive harsh conditions

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14
Q

Protoplasts contain

A

Cytoplasm and nucleus

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15
Q

Nucleus

A

Command center of the cell that contains the chromosomes or genetic material

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16
Q

Nucleoli

A

Centers of ribosomal RNA production

17
Q

What organelles are found in the cytoplasm?

A

Plastids, mitochondria, endoplasmic reticula, vacuoles

18
Q

Plasmodesmata

A

Channels through cell walls that connect the cytoplasms of adjacent cells

19
Q

Eukaryotic cells reproduce asexually through

A

Mitosis

20
Q

Interphase

A

Cell duplicates it’s DNA in preparation for cell division

21
Q

2 stages of cell division

A

Mitosis and cytokinesis

22
Q

Mitosis

A

Division of the nucleus

23
Q

Cytokinesis

A

Division of the cytoplasm

24
Q

4 stages of mitosis

A

Prophase, metaphase, anaphase, telophase (PMAT)

25
Q

Prophase

A

Chromosomes become visible, nuclear envelope dissolves, spindle forms

26
Q

Metaphase

A

Second phase of mitosis, during which the chromosomes line up across the center of the cell

27
Q

Anaphase

A

Phase of mitosis in which the chromosomes separate and move to the opposite ends of the cell

28
Q

Telophase

A

Phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin

29
Q

Cytoplasmic streaming

A

Circular flow of cytoplasm within cells

30
Q

Peptidoglycan cell wall

A

Bacterial cells are enclosed in it

31
Q

Equatorial plane in metaphase

A

The plane in the middle where the chromosomes become arranged

Botany Quiz 2 (1 decks)

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