Learning Outcomes: the World of Plants

Learning Outcomes: The World of Plants

Sub-Topic: Introducing Plants

EOTT / Prelim / Exam
Give examples of advantages of there being a wide variety of
plants.
Explain possible consequences to man and other animals of
a reduction in the variety of species.
Describe 3 specialised uses of plants
Describe a production or refining process, eg malting barley,
rape seed, raspberries, timber.
Describe 2 potential uses of plants or plant products eg new
medicines, new food sources.

Sub-Topic: Growing Plants

EOTT / Prelim / Exam
Describe the functions of the three main parts of a seed of a
dicotyledon, ie seed coat, embryo, food store.
Describe the effect of temperature and the availability of
water and oxygen on germination.
Describe the changes in % germination that occur over a
range of temperatures.
Describe the functions of the parts of a flower, i.e. sepal,
petal, stamen, anther, stigma, ovary and nectary.
Explain the structure of wind and insect pollinated flowers in
relation to sexual reproduction.
Describe methods of pollination.
Describe the growth of the pollen tube and fusion of the
gametes.
Describe fertilisation and fruit formation.
Describe one example of each of the following dispersal
mechanisms: wind, animal internal, animal external.
Describe ways of propagating flowering plants artificially by
cuttings and grafting.
Explain the advantages to man of artificial propagation in
flowering plants.
Describe what is meant by the term ‘clone’.
Describe asexual reproduction by runners and tubers.
Describe the advantages of both sexual and asexual
reproduction to plants.

Sub-Topic: Making Food

EOTT / Prelim / Exam
Explain the need for transport systems in a plant.
Describe the structure of phloem and xylem and identify
other functions of the transport system.
Describe the pathways of movement of water and food in
xylem and phloem.
State that plants take in CO2 from the air through the stomata
which can open and close.
Describe the external features and internal structures
(epidermis, mesophylls, veins) of a leaf in relation to its
function in gas exchange.
State that water vapour is lost through stomata.
State that green plants make their own food which may be
stored as starch.
Describe the fate of CO2 as structural and storage
carbohydrates in plants and as an energy sources.
State that green plants convert light energy to chemical
energy using chlorophyll.
Describe the process of photosynthesis in terms of raw
materials and products.
Explain what is meant by a limiting factor and describe the
main limiting factors in the process of photosynthesis