Page 85 - General and Inorganic Chemistry for Advanced Secondary Schools Students Book Form Five and Six
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Biology for Secondary Schools
Activity 5.2: Investigating different them are multicellular (made up of
protoctists many cells) and some are unicellular
(made up of a single cell). Example
Materials: Specimen bottles, microscope, of unicellular fungi is yeast
microscope slides and coverslips, pond (Saccharomyces sp.). Examples of
FOR ONLINE READING ONLY
water, a notebook, and a pencil multicellular fungi include bread mould
(Rhizopus sp.), pin mould (Mucor sp.),
Procedure and mushroom (Agaricus sp.).
1. Go to a pond or any other place
with stagnant water. General characteristics of Fungi
Members of the kingdom Fungi have
Caution the following general characteristics.
Care must be taken when (a) They are found in various places
collecting water samples from including air, water, soil, food,
the pond.
and in the bodies of animals and
plants.
2. Fetch water from the pond using
specimen bottles. (b) They are eukaryotic organisms with
3. In the Biology laboratory, put true nucleus which is enclosed in
a drop of the pond water on a a nuclear membrane.
microscope slide, add stain and (c) They can be either unicellular,
cover it with a coverslip. example yeast or multicellular,
4. Observe the slide under the examples mould and mushroom.
microscope. Do you identify (d) Their body is made up of a
any organisms? If Yes, name mycelium consisting of a network
them.
of fine, tube-like filaments called
Kingdom Fungi hyphae (except yeast).
(e) They feed saprophytically, for
Task 5.7 example mushroom; but some
Read from reliable internet sources, of them are parasitic for example
library and other biology books Candida albicans.
information about fungi. (f) Some fungi form symbiotic
associations with other species.
The kingdom Fungi contains a variety (g) They reproduce both sexually by
of eukaryotic organisms that consist spores and asexually by budding.
of bounded cell organelles, such as (h) They store carbohydrates in the
mitochondria and nucleus. Most of form of glycogen.
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