Lecture 4 Flashcards

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1
Q

Which statement describes the characteristics of the protists which are considered amoebas?

A

amoeba and slime mold

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2
Q

Which statement describes the characteristics of the protists which are considered plasmodial slime molds?

A

a huge single-celled multinucleate, oozing masses

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3
Q

Which statement describes the characteristics of the protists which are considered cellular slime molds?

A

single cells combine and each nucleus differentiate.

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4
Q

Which statement describes the characteristics of the protists found within Phylum Choanoflagellida?

A

Most likely common ancestor of sponge
Single emergent flagellum stitching out of them, surrounded by a funnel shaped contractile collar, composed of filaments that’s similar to how sponge have theirs. Feed on bacteria

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5
Q

Why are choanoflagellates important evolutionarily speaking?

A

Ancestor of anything kingdom animalia and fungi. They are responsible for all the multicellularity of all organisms

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6
Q

Which of these statements do not explain a defining characteristic of organism found within Kingdom Fungi?

A

unicellular and have their own phylum, long slender filaments

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7
Q

Multicellular fungi are primarily filamentous in their growth form and have a body which is composed of long, slender filaments called _____________. Fill in the blank.

A

septa

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8
Q

What does it mean if a fungi undergoes plasmogamy?

A

n+n stage because they not fusing yet they just in the same cell

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9
Q

What does it mean if a fungi undergoes karyogamy?

A

you fuse the two nucleoli you make them into one

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10
Q

During sexual reproduction, some fungi undergo a stage in which two haploid cells coexist in a single cell called a _____________ for some period of time before fusing to make a diploid nucleus. Fill in the blank.

A

dikaryon

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11
Q

All fungi have cell walls made of ____________. Fill in the blank.

A

chitin

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12
Q

Fungi undergo nuclear mitosis (closed mitosis) to complete cellular division. Which statement describes nuclear mitosis?

A

Fungi never opens their nuclear envelope ever. Instead it takes place in the cell.

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13
Q

Regarding the body of a fungus, which statement describes one of the type of hyphae a fungus can possess? (there are technically two)

A

Continuous or branching tubes filled with cytoplasm and multiple nuclei
Made of long chains of cells joined end to end and divided by cross walls called septa

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14
Q

Regarding the body of a fungus, what is a mycelium?

A

can attach to a tree to get all its carbohydrates and sugars, trees can only grow big by

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15
Q

Regarding how fungi reproduce, what is the difference between a monokaryotic and dikaryotic cell?

A

Dikaryon- two nuclei in one cell
Monokaryon - one nuclei, one cell

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16
Q

Regarding how fungi reproduce, what is the difference between a heterokaryotic and homokaryotic hyphae?

A

Heterokaryotic- if the two are going to be genetically different
Homokaryotic- if the two are genetic the same

17
Q

Fungi are capable of producing both sexual and asexual spores. How are they (a) spread in the environment or (b) grow once they reach the ground?

A

The wind they rely on the wind