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Bio 111 > Unit 4 Plant Form And Function > Flashcards

Unit 4 Plant Form And Function Flashcards

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Biology 101 flashcards
1
Q

The oldest, structurally simplest and most abundant life forms on earth are

A

Bacteria

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2
Q

Non-photosynthetic bacteria are

A

Unicellular and spheres, straight or curved rods,long chains or filaments

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3
Q

Bacilli are

A

Straight or rod shaped bacteria of approximately 1-5um x 0.5-10um in size

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4
Q

Spherical/round bacteria are called

A

Cocci and are about 0.5-1.0um in diameter

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5
Q

Spirilla are

A

Long and helical shaped also called spirochetes

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6
Q

Short curved rods are called

A

Vibrios

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7
Q

Cyanobacteria are _______

A

Photosynthetic
Could be single celled, filamentous or simple colonies

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8
Q

Only which organelle is present in prokaryotes

A

Ribosomes

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9
Q

Eukaryotic cells are _____ times larger than prokaryotic cells

A

Ten times

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10
Q

A structure that helps cells maintain their shape and internal organisation is

A

Cytoskeleton

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11
Q

Prokaryotic Flagella ___________ while eukaryotic Flagella have _________

A

Spin like propellers and whip like motion respectively

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12
Q

Non photosynthetic eukaryotes include

A

Slime molds and fungi

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13
Q

Slime molds reproduce by

A

Spores

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14
Q

Slime molds wall less assimilative body may be

A

Uninucleate or multinucleat

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14
Q

Slime molds wall less assimilative body may be

A

Uninucleate or multinucleat

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15
Q

Mass of fine tubular branching threads in fungi are called

A

Hyphae

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16
Q

The whole mass of thread in fungi is called

A

Mycelium

17
Q

Protoplasm of fungi is either continuous of interrupted at intervals by _____

A

Crosswalls called septa or septum

18
Q

Fungi with crosswalls are called___1__ while those without are called _____2____

A

1 septate eg penicillium sp
2 non-septate, aseptate of coenocytic eg mucor sp

19
Q

Penicillin acts by

A

Killing bacteria directly of inhibiting their growth

20
Q

Saccharomyces cerevisiae causes bread to rise by

A

Releasing CO2 which gets trapped in the dough

21
Q

Plant body of filamentous fungi is

A

Haploid and differentiated into vertical and horizontal axes

22
Q

Horizontal hypae lie on

A

Substrate and produce sporangiophore at intervals

23
Q

Rhizoids penetrate the _____

A

Substratum and aid anchorage and nutrient absorption

24
Q

Examples of complex fungi are

A

Mushrooms, toadstool and puff balss

25
Q

When hyphal cells become greatly expanded a tissue resembling ______ of higher plants results

A

Parenchyma

26
Q

Nutrients are stored in hyphal walls as

A

Glycogen

27
Q

Non vascular photosynthetic eukaryotes are called

A

Eukaryotic algae and bryophytes

28
Q

Pigmentation in chrysophyta is brought about by

A

Predominance of carotenoids

29
Q

Chloroplast of _____ have 3 membranes instead of 2

A

Chrysophyta

30
Q

Among members of chrysophyta, there is a morphological seperation into

A

Centric and pinnate forms

31
Q

Motile and non motile unicellular forms of chlorophyta are _________&________

A

Chlamydomonas and chlorella respectively

32
Q

Colonial forms of chlorophyta are held together by

A

Mucilaginous matrix
Motile (volvox)
Non motile (scenedesmus sp)

33
Q

Filamentous forms of green algae include

A

Oedogonium sp and spirogyra

34
Q

Algae that have structures resembling leaves stem and roots are

A

Phaeophyta(brown algae)
Lamina blade (leaf like)
Stipe (stem like)
Attachment part (holdfast)
Haptera (root like)

35
Q

Examples of brown algae are

A

Fucus sp
Laminaria sp

36
Q

Phaeophyta range from

A

Microscopic filamentous forms to massive plants that are 50m or more in length

37
Q

The largest sea plant is

A

Macrocystis ie kelps

38
Q

Red algae are divided into

A

Bangiophyceae
Florideophyceae

39
Q

Xtics of bangiophyceae

A

Simplest is unicellular thallus (cyanidium sp)
Filamentous (bangia sp)
Erect or prostrate
Uniseriate or multiseriate
Branched or unbranched
Ma

40
Q

Xtics of florideophyceae

A

Simple Uniseriate branched forms (polysiphonia sp)
Comples pseudoparenchymatousthallus (nemalion sp)

41
Q

What is pseudoparenchymatousthallus

A

A tissue that superficially resembles plant parenchyma but is an interwoven mass of hyphae in fungi or filaments in algae

Bio 111 (8 decks)

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