BIOLOGY
Scheme of Work
Term 11 (Jan. – April, 2011)
Week / Topic / OBJECTIVES(Students must be able to :-) / Labs/Aids
1 / Revision / -Correction of Dec. exam paper
2 / Transport in Mammals
And Plants / - Explain the need for transport systems in
multicellular organisms
- Identify the materials that are transported in animals and plants / Have students calculate the SA/VOL ratio for small and large objects
3 / Transport in Mammals / - Describe the structure and function of
the circulatory system in humans. This
includes- blood vessels, heart and blood.
- Blood vessels –arteries, veins and
capillary.
- Explain the differences between the blood vessels
- Blood – components of the blood and
function of each component.
- Heart – structure of the heart and how
the heart functions / Use model of the heart to show the structure.
Relate exercise to the pulse rate.
4 / Transport in plants / - Describe the structure of sieve tubes with companion cells and xylem vessels.
- Discuss how the structures of these cells relate to the function.
- Describe the process of transpiration.
- State the function of phloem in the transport system of plants. / Observe herbaceous plants in coloured water
5 / Storage in plants and animals and translocation / - Discuss the importance of food storage in living organisms (means of overcoming scarcity, special functions e.g. production of sexual or reproductive structures and development of embryos)
- Identify sites of storage and products stored (roots, stems, leaves, fruits, seed in plants and liver, fat deposits in animals). / Draw storage organs
Test storage organs for nutrients e.g. starch, sugars and oil
In course assessment
6 / Sensitivity and Coordination / - Define stimulus and response
- Explain why the response to stimuli is important for the survival of organisms.
- Describe the response of green plants to unilateral stimulus of light and gravity.
- Describe the response of invertebrates (millipedes, earthworms or woodlice) to variations in light intensities, temperature and moisture
- Define receptors and effectors
- Explain the relationship between the receptor, the central nervous system and the effector.
- State the components of the coordinating system. / Relate to plants in natural world
7 / - Structure and function of the sensory and motor neurone
- Emphasise the coordinating role of the brain and spinal cord and the sensory and motor neurones.
- Define a reflex action and distinguish between a cranial and spinal reflex (e.g. pupil reflex and a knee jerk reflex).
- Use simple flow diagrams to show the
pathway along which an impulse travels
in a reflex.
8 / - Describe the functions of the main
regions of the brain – cerebrum,
cerebellum and medulla.
- The use of the medulla and the automatic
nervous system in controlling the heart
and breathing rate.
- Identify the main sense organs and the stimuli to which they respond.
- Relate the structure if the human eye to its function as a sense organ
- Explain sight defects and their
corrections (long and neat sightedness,
use of corrective lenses and glaucoma) / Look at longitudinal or cross section of the eye.
Examine dissected eyes of a mammal
9 / - Describe the function of the human skin in temperature regulation as an example of homeostasis.
- Show the location of endocrine glands in
humans (thyroid, pancreas, adrenals,
gonads and pituitary).
- describe the role of hormones of the pancreas and adrenals / Use charts to show positions of the various glands
In course exam
10 / Homeostasis and Excretion / - Define excretion and homeostasis
- Discuss the importance of excretion in
living organisms (plants and animals)
- Give examples of substances excreted by animals and plants (carbon dioxide, urea, oxygen, calcium oxalate)
- State how plants excrete waste products (leaf fall, loss of bark and storage)
- State how animals excrete waste products (lungs, urinary system, skin)
11 / - Define osmoregulation
- Identify and label the parts of the urinary system.
- Describe the function of each part of the urinary system
- Relate the structure of the kidney to its osmoregulatory and excretory function
12 / - Explain the role of the hormone ADH in osmoregulation.
- Discuss adaptation in plants to conserve water. (root length, cuticle thickness and water storage)