biology exam 2 ch 31

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6 terms

Hyphae are _____.

1. reproductive cells

2. food storage cells

3. cross-walls

4. thin filaments

4. thin filaments

The Mycelia _____.

1. have small surface areas to prevent water loss

2. are found almost exclusively in dry areas

3. are found almost exclusively in aquatic environments

4. have a large surface area composed of branching hyphae

4. have a large surface area composed of branching hyphae

Fungi digestion _____.

1. takes place inside a food vacuole

2. does not occur; fungi do not digest nutrients

3. is extracellular, meaning it takes place outside the organism

4. takes place inside a stomach-like structure

3. is extracellular, meaning it takes place outside the organism

Glomeromycota consists of arbuscular mycorrhizal fungi (AMF), a major monophyletic group characterized by what relationship with other organisms?

1. They cause athlete's foot, yeast, and worse infections in their human hosts.

2. They provide key nutrients to tree, grass, and shrub roots in exchange for sugar.

3. They can cause blight in crops and trees.

4. They are predatory on amoeba and other unicellular protists.

2. They provide key nutrients to tree, grass, and shrub roots in exchange for sugar.

How do fungi acquire their nutrition?

1. They utilize photosynthesis, but only under certain conditions.

2. They are able to use photosynthesis in the same way as plants.

3. They absorb their nutrition from other organisms, living or dead.

4. They don't need a food supply; they live only a short while.

3. They absorb their nutrition from other organisms, living or dead.

Why are fungi so important to the carbon cycle?

1. They produce O2, making it available to nearby plants for use in the carbon cycle.

2. They release water from the soil, freeing up hydrogen atoms for the carbon cycle.

3. They make it turn more rapidly by breaking down wood, freeing up carbon atoms.

4. They fix carbon and produce O2 just like plants do during photosynthesis.

3. They make it turn more rapidly by breaking down wood, freeing up carbon atoms.

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