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14 Cards in this Set

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Name three types of shapes bacteria can have.
Coccus (spherical)
Spirillum (spiral)
Bacillus (rod)
Draw a simple diagram of a bacterium and label it.
Refer to notes
What is another name for bacteria? Why are they called this?
Decomposers. Because they feed on decaying matter.
Describe how enzymes feed.
Enzymes secreted through the cell membrane onto food. Enzymes break food into smaller molecules. The small molecules are absorbed through the cell membrane.
What types of conditions help bacteria to grow?
A7
Warmth and moisture.
Q8
Why does the growth curve for bacteria begin to decay after a while?
A8
Bacteria numbers decline because of lack of food and absorption of toxic waste.
Q9

Why do fungi seek out food sources?
A9

Because they contain chlorophyll, so they cannot produce their own food.
Q10

Name the three main types of fungi.
A10

Yeasts, moulds and mushrooms.
Q11

Describe the shape of the three types of fungi.
A11

Yeasts are single cells, moulds are thin threads and mushrooms are large fungi.
Q12

Draw a labelled diagram of a fungi.
A12

See notes.
Q13

Describe how fungi feed.
A13

Hyphae secrete enzymes into food, which break it down. The food is absorbed into to fungus.
Q14

What are saprophytic parasitic fungi?
A14

Saprophytes feed of dead animal and plant matter. Parasitic fungi feed of live animal or plant tissue.
Q15

Describe how fungi reproduce.
A15
The sporangium release spores into the air, that find a food source, new hypae grow into the food source.
Q16

Explain why viruses are not considered to be living orgamisms.
A16

Because they do not feed or reproduce.