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Idk (2024-2025) > Micro Lecture 9 - Algae > Flashcards

Micro Lecture 9 - Algae Flashcards

1
Q

The members of the algae are classified under 3 kingdoms. Enumerate the 3 kingdoms.

A
  • Monera
  • Protista
  • Plantae
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2
Q

Can algae produce their own food? Why?

A

Yes, because they are autotrophic.

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3
Q

Algae has true roots and a vascular system to circulate water and nutrients throughout their body.

True or False?

A

False

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4
Q

Algae are microscopic organisms only.

True or False

A

False

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5
Q

Example of a macroscopic multicellular algae.

A

Giant Kelp - Sargassum

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6
Q

Examples of unicellular microscopic algae (4)

A
  • Diatoms
  • Spirogyra
  • Euglenoids
  • Dinoflagellates
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7
Q

Prokaryotic algae

A

Cyanobacteria (blue-green algae)

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8
Q

Microscopic algae reproduce generally through _______, ________, and ________.

A
  • Fragmentation
  • Binary Fission
  • Mitosis
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9
Q

Microscopic algae produce _______ spores.

A

Motile spores

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10
Q

Example of aggregate algae

A

Volvox

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11
Q

Example of filamentous algae

A

Spirogyra

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12
Q

Example of unicellular algae

A

Diatoms

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13
Q

The 5 algal groups

A
  1. Cyanophyta / Cyanobacteria
  2. Euglenophyta
  3. Pyrrophyta
  4. Chrysophyta
  5. Chlorophyta
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14
Q

In many Asian countries, __________ is valued for human consumption.

A

Spirogyra spp.

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15
Q

Volvox serve as good for aquatic organisms, especially the microscopic invertebrates called _______.

A

Rotifers

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16
Q

Believed to be the precursor of higher plants

A

Chlorophyta

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16
Q

The chlorophyll of the chlorophyta.

A

Chlorophyll a, b

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17
Q

Examples of chlorophyta

A

Volvox and Spirogyra

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18
Q

The reserve materials of the chlorophyta

A

Starch

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19
Q

The cell wall of the Chlorophyta is made with _________.

A

Cellulose

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20
Q

known as an important source of natural bioactive compounds for antibiotic,
antiviral, antioxidant, anti-inflammatory, and cytotoxic purposes.

A

Spirogyra

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21
Q

A species under Chrysophyta that causes fish kills.

A

Prymnesium parvum

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22
Q

The common name of Synura

A

Golden-brown algae

23
Q

The common name of Prymnesium parvum

A

Golden algae

24
Q

Golden algae that is a primary source of food for zooplanktons

A

Synura sp.

25
Q

Algae under Chrysophyta

A
  • Diatoms
  • Golden-brown algae
  • Yellow-green algae
26
Q

Algae that is responsible for 20% of global carbon fixation and marine primary productivity.

A

Diatoms

27
Q

Diatoms are used for filtration.

True or False

A

True. The fine structures of diatom shells trap foreign particles in fluids such as dirt, lint, hair, and some other microscopic organisms.

28
Q

________ are often used to filter water, particularly water in hot tubs and swimming pools.

A

Diatoms

29
Q

Chrysophyta is under what kingdom?

A

Kingdom Protista

30
Q

What algal group does the fire algae belong to?

A

Pyrrophyta

31
Q

Pyrrophyta is also called as _________________.

A

Dinoflagellates

32
Q

Dinoflagellates are eukaryotic.

True or False

A

True

33
Q

Despite being red in color, dinoflagellates are photosynthetic.

True or False

A

True

34
Q

The cell wall of dinoflagellates are made with ____________.

A

Cellulose

35
Q

The reserve material of dinoflagellates.

A

Starch

36
Q

Pigments that the dinoflagellates have (5)

A
  • chlorophyll A
  • C1
  • C2
  • pyridinine
  • fucoxantin
37
Q

Species under Pyrrophyta

A

Gonyaulax and Gymnodium

38
Q

____________ are responsible for red tides.

A

Dinoflagellates

39
Q

Dinoflagellates secrete neurotoxins and cause __________ in humans.

A

Paralytic shellfish poison (PSP)

40
Q

_________ affects the nervous system and paralyzes muscles

A

Biotoxin

41
Q

Some taxonomists classify this algae under bacteria

A

Cyanobacteria

42
Q

Cyanobacteria can produce their own food and oxygen.

True or False

A

True

43
Q

Cyanobacteria that can be used as fertilizer in rice paddies. (4)

A
  • Nostoc
  • Anabaena
  • Oscillatoria
  • Spirulina
44
Q

Why are some cyanobacteria used as fertilizers in ride paddies?

A

They fix nitrogen from the atmosphere.

45
Q

Most species of algae are not harmful, but sometimes certain types blood and produce toxins in excessive amounts.

True or False

A

True

46
Q

Excessive amounts of toxins produced by algal bloom can cause harm to human and pet health, aquatic ecosystems, and local economies.

True or False

A

True

47
Q

Examples of blue-green algae that produce toxins capable of causing illness in humans and animals.

A
  • Microcystis
  • Aphanizomenon
48
Q

Illnesses caused by blue-algae toxins.

A
  • Gastroenteritis
  • Neurological disorders
  • Cancer (possibly)
49
Q

Examples of blue-green algae (8)

A
  • Oscillatoria
  • Anabaena sp.
  • Pseudoanabaena sp.
  • Calothrix sp.
  • Synechocystis sp.
  • Limnothrix sp.
  • Nostoc
50
Q

Some cyanobacteria are beneficial, and serve as sources of food in some countries.

True or False

A

True

51
Q

Species of blue-green algae that are cultivated and consumed as foodstuff in some countries like China and Brazil

A

Nostoc

52
Q

Cyanobacteria is the eukaryotic.

True or False

A

False

53
Q

Cyanobacteria is the only algal group that is prokaryotic.

True or False

A

True

54
Q

Protists that are widespread inhabitants of fresh and marine waters, surface of soil, rocks, and plants, hot springs, and snow banks.

A

Algae

Idk (2024-2025) (40 decks)

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