PHOTOSYNTHESIS DIAGRAM

KINGDOMS QUIZ

http://m.quiz.biz/quizz-606543.html

 This is a link for a quiz to help you classify living things. There is a mistake, can you find it?

EXAM REVISION (possible questions)

Next Friday (February 13th), you'll have an exam to check what you have learnt in Unit 9, here you are some examples of possible questions:


Who was Linnaeus and what did he invent?

Why is it important to classify living things?

What is a virus?What kingdom is it included in? 

Make a drawing of the different types of bacteria according to their shapes and name them. Why can bacteria be "good or bad"?

Make a mind map of the different types of protists.

Make a drawing of the different types of protozoa and explain them giving examples.

Amazing mushrooms

Have a look at the amazing shapes of some mushrooms

Parts of a mushroom and reproductive cycle

This is a classic mushroom with its typical parts. Mushrooms need moisture to appear, they are the fruiting body of the fungus which is usually under the stem, in the substratum. The spores are formed in the gills, fungi don't always have gills, they can have a different structure to produce spores like the pores you can see in fungi like Boletus sp. They can have all the parts above or just some of them: scales, ring and volva aren't always present, it depends on the species.

 

In the second picture you can see how mushrooms reproduce. They don't have real tissue and form long structures called hyphae. A large number of hyphae is called mycelium. When conditions are favorable the mycelium forms the fruiting bodies, that's what we can see and they're called mushrooms. They produce spores and the cycle starts again.

FUNGI

CHARACTERISTICS OF FUNGI:

-EUKARYOTIC
-SINGLE-CELLED OR MULTICELLULAR
-HETEROTROPHS (they can't make their own food because they don't have chlorophyll for photosynthesis)
-THEY HAVE A CELL WALL MADE OF CHITIN
-THEY GROW IN WET PLACES (they need humidity to grow)

TYPES OF FUNGI:

SINGLE-CELLED: YEASTS

Yeast are important because they cause fermentation  and are used to make various products such as bread, beer or wine

MULTICELLULAR: MOULDS AND MUSHROOMS

Their cells are grouped into filaments called hyphae. Moulds are very important in ecosistems because they are decomposers.
Mushrooms can be toxic or edible, some of them are a great source of nutrients and have excellent flavours like Boletus edulis or Amanita caesarea. Others are very poisonous and they can kill people like Amanita phalloides.

TYPES OF ALGAE

GREEN ALGAE

BROWN ALGAE

RED ALGAE

MICROORGANISMS AND DISEASE

Some microorganisms cause diseases, have a look a the chart about microbes and the diseases they can cause:

WATCH AN AMOEBA EATING TWO PARAMECIA

VIDEO ABOUT PROTOZOA

DIFFERENT TYPES OF BACTERIA

These are Cocci, they are spherical in shape. Cocci cause many bacterial infections in humans, such as strep throat, pneumonia, food poisoning, otitis media, various skin diseases, meningitis and severe types of septic shock.




These are bacillus, they are cylindrical in shape. Some are pathogens and cause diseases such as but others are beneficial and used to make yoghourt and other products.

Numerous enzymes, antibiotics and other metabolites have medical, agricultural, pharmaceutical and other industrial applications. Examples of antibiotics formed by Bacillus spp include bacitracin.

They form spores which are a method of surviving unfavourable conditions.



Spirilla are spiral shaped as you can see, they cause diseases like siphilis .




Finally vibrios are comma shaped bacteria, some of them, for example Vibrio vulnificus can cause serious illness when you eat seafood.

VIDEO ABOUT BACTERIA