Fungi Questions

1.  Draw a diagram of bread mould showing:
1. rhizoid
2. stolon
3. sporangium
4. sporangiophore
5. spores
2. List 6 uses of fungi.
3. Briefly describe the discovery of penicillin and indicate why it was so important.
4. Why must we complete all courses of antibiotic tablets?
5. How can you protect yourself from athlete’s foot?
6. Now design and create an A4 poster that can make others here at Crawford aware of how fungi help them, or warn them of  a danger that fungi presents to us here at Crawford.
7. Define the following terms:
1. hypha
2. mycelium
3. spore
4. sporangium
5. substrate
8.  Are fungi part of the plant, animal or some other kingdom? Explain your point of view.

 

Question for Thursday

The table below shows the pH and reaction to litmus of four body fluids.

 

Body Fluid	pH	Red litmus	Blue litmus
Blood	7,4	Turns blue	Turns red
Bile	8,2	Turns blue	Turns red
Gastric Juice	1,7	No change	Turns red

 

 

These data indicate that gastric juice is

A            very acidic.

B            very basic.

C            positively charged.

D            negatively charged.

Algae Questions

1. Define the term algae.
2. Give THREE reasons why algae can be seen as harmful to humans. Use examples.
3. Give FOUR reasons why algae can be seen as helpful to humans. Use examples.
4. Draw a correctly labeled and headed diagram of algae.

Taking Notes during Class

Organising information significantly improves memory, so it is very important to gather and organise information during (and after) class.

There are various ways information can be recorded in class. Some introductory thoughts are:

• writing sentences is impossible, people speak too quickly!
• we must listen and record (which means we must be in a place in the class where we can concentrate and NOT be distracted).

We can practice by taking notes of radio news broadcasts or something similar.

Try different methods to get the information. Some tips are:

• use symbols instead of words (keep these symbols the same for all notes)
• only write key words (learn to listen for them)
• after the lesson expand your key notes into sentences  and reorganise them so they make sense.

I trust these ideas assist you. Coming up next are some ideas you can use to take notes quickly.

Question for Wednesday

The diagram below shows an example of interdependence among aquatic organisms. During the day the organisms either use up or give off (a) or (b) as shown by the arrows.

 

 

Choose the right answer for (a) and (b) from the alternatives given.

 A)(a) is oxygen and (b) is carbon dioxide.
 B) (a) is oxygen and (b) is carbohydrate.
 C) (a) nitrogen and (b) is carbon dioxide.
 D)(a) is carbon dioxide and (b) is oxygen.
 E)(a) is carbon dioxide and (b) is carbohydrate.

Question for Tuesday

1.What is the correct order for steps in the scientific method?

a. have a question, formulate hypothesis, develop method, gather data, draw conclusion

b. formulate hypothesis, have a question, develop method, gather data, draw conclusion

c. formulate hypothesis, have a question, gather data,develop method, draw conclusion

d. have a question, formulate hypothesis, draw conclusion, develop method, gather data

Question for Monday

A rainbow is produced when sunlight falls on a drop of rain. Which of the physical phenomenon are responsible for this?

1. diffusion

2. refraction

3. internal reflection

(A) 1 and 2

(B) 2 and 3

(C) 1, 2 and 3

(D) 1 and 3

Science Expo Project Layout

Angiosperms (Flowering Plants)

The Structure and Functions of Flowers

The female parts of a flower consist of an ovary, which contains one or more ovules, a style and the stigma. The ovary is at the base of the flower.

From the ovary, extends a tubular structure called the style and on the top of the style is a surface which captures pollen called the stigma.

The stigma can take many different forms, most of them designed to help trap pollen. There are many variations on this basic structural theme.

After fertilization the ovule becomes the seed and the ovary becomes the fruit.

The male parts of a flower consist of one or more stamens. Each stamen is made up of paired anthers (sacs containing pollen) on a filament (a thin stalk).

Pollen from the anthers of one flower is transferred to the stigma of another usually either by wind, or by animals, especially insects.

PETALS, COROLLA, SEPALS, CALYX

Flowers can have more than one petal, and the flower petals are collectively called the corolla. A flower bud is protected by green leafy structures called sepals. Collectively, all of the sepals form the calyx.

The corolla or petals are often brightly coloured with markings attractive to insects. The flowers may also be scented, especially if they flower at night.

The receptacle is the place on the stem where floral organs originate and attach.

For diagrams:

http://toolboxes.flexiblelearning.net.au/demosites/series4/422/tools/bookcase/botany/flower_structure.html

Fungus Homework Task

Grow a fungus on a piece of bread, or plant matter.
Place into a transparent container that you can seal airtight. Moisten with a splash of water.
Place into a warm but not hot place, avoid direct sunlight.
Observe each day.
Create a table for your answer with one column for date entries and another column for changes you observed.

View each day until the 7th September 2011.

Handing in Date: Thursday 8 September 2011.