Quiz Questions Flashcards

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1
Q

What is the purpose of heat fixation?

A

To adhere the specimen to the slide so it isn’t lost during the staining procedure.

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2
Q

What is the purpose of the safranin in the gram stain procedure?

A

The safranin is pink colored counter-stain that gram negatives will absorb after being destained.

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3
Q

What color will gran negative bacteria be after iodine? What about gram positive?

A

both will be blue/purple.

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4
Q

Why might a gram + look pink after the gram stain is finished, assuming that all chemicals are functional?

A

The destaining process lasted too long, causing even the gram positives to lose their crystal violet.

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5
Q

What are the smaller circular DNA molecules that are not a part of the genomic DNA of a bacterial cell called?

A

Plasmid

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6
Q

Do single celled protists have membrane-bound organelles?

A

NO

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7
Q

What is the closest multicellular relative to diatoms?

A

Brown algae

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8
Q

What is the purpose of the apical complex (apicomplexan)?

A

To help in the penetration of the host cell.

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9
Q

What is a common characteristic of alveolates?

A

They all have membrane enclosed sacs called alveoli.

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10
Q

What protist is this? How can you tell? What disease does it cause?

A

Plasmodium (apicomplexan), you can tell by the apical complex. It causes malria.

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11
Q

Are plasmodial slime molds autotrophs or heterotrophs?

A

heterotrophs

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12
Q

What protist are all of these? What are each of these organisms?

A

These are green algae

a. Chlamydomonas
b. Spirogyra
c. Ulva (sea lettuce)

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13
Q

Other than the different pigment, what makes red algea so different from other algae?

A

They lack flagella

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14
Q

What chlorophyll pigments does green algae possess?

A

Chlorophyll A and chlorophyll B

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15
Q

What are some products made from red algae?

A

Agar

Carrageenan

Nori (sushi wrapper)

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16
Q

What are some shared derived characteristics of plants?

A

Alternation of generations

Multicellular, dependent embryos

Walled spores produced in sporangia

Multicellular gametangia

17
Q

What type of cell division is performed within the sporangium?

A

Meiosis

18
Q

What single cell organism divides to form the sporophyte?

A

Zygote

19
Q

What are the difference between a moss and a fern?

A

Moss - gametophyte dominant multicellular organism, lack true roots, no xylem or phloem

Fern - Have true roots, dominant sporophytes, have xylem and phloem

20
Q

Male and femal gamete?

A

Sperm and egg

21
Q

Why is fertilization of seed plants good for life on land?

A

Doesnt rely on water

22
Q

What does an ovule develop into?

A

Seed

23
Q

Where is the male gametophyte found in pines?

A

Pollen grain

24
Q

What is the function of the endosperm?

A

Nutrition of the embryo

25
Q

What are the tiny cells found in this picture?

A

Pollen Grains