Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
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. |
