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BIOLOGY LESSON NOTE FOR SECOND TERM SS1
This Lesson Note on Biology for SS1 second term covers weekly prepared lesson notes and each of them is rich in classwork, curriculum compliant, and syllabus based.
The lesson note is well-detailed with adequate evaluation to ensure that the learning objectives are achieved.
The scheme of work used in preparing the lesson note is based on the latest unified NERDC/UBE curriculum which is suitable for all schools in all the States in Nigeria.
Keep reading, you will find the Link to Download the complete lesson note in Ms-Word (Microsoft Word) Editable format below.
Biology Scheme of Work for SS1 Second Term
WEEK 1: Reproduction (Meaning, Types and Form of Asexual Reproduction)
WEEK 2: Sexual Reproduction (Conjugation, Meiosis) and Excretory Organelles in Living Cell
WEEK 3: Reproduction in Unicellular Organisms and Invertebrates
WEEK 4: Irritability and Movement
WEEK 5: Nutrition in Animals (Food Substances and Digestive Enzymes)
WEEK 6: Basic Ecological Concepts
WEEK 7: Biomes
WEEK 8: Population Studies
WEEK 9: Functioning Ecosystem
WEEK 10: Ecological Management
WEEK 11: Revision
WEEK 12: Examination
WEEK 13: Examination
REVISION:
- Modern Biology for Senior Secondary Schools by S.T. Ramlingam
- Essential Biology by M.C Michael
- New Biology by H. Stone and Cozen
- SSCE, past questions and answers
- New System Biology by Lam and Kwan
- College Biology by Idodo Umeh
- UTME, SSCE and CAMBRIDGE past questions and answers
- Biology practical text
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NOTE: We have Secondary School Lesson Notes for ALL SUBJECTS, JSS1 – SS3 (first, second and third term). To see the Available Subjects, place your order and Download any of the Lesson Notes, CLICK HERE.
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BIOLOGY LESSON NOTE FOR SECOND TERM SS1
Below are the Excerpts (Samples) of the 2023 Complete Biology Lesson Notes for SS1 Second Term
WEEK 1: REPRODUCTION
CONTENT
- Meaning and Types of Reproduction
- Forms of Asexual Reproduction
- Sexual Reproduction (Conjugation and Fusion of Gametes)
- Meiosis and Importance of Meiosis
MEANING AND TYPES OF REPRODUCTION
Reproduction is the ability of an organism to give rise to new individuals of the same species in order to ensure continuity of life.
There are two types of reproduction
- asexual reproduction
- sexual reproduction
- Asexual Reproduction: is the process whereby an organism produces an offspring by itself. I.e. only one parent is presence. No gametes involved thus there is no fusion of nuclei, but the cells that give rise to the offspring usually divide by means of mitosis. Offspring produced are identical to the parent in all respect and are called clones
- Sexual Reproduction: is a type of reproduction that involves two parents and the fusion of the male and the female gamete to form a zygote. Offspring produced show new variation. The sex cells (gametes) are produced by meiotic cell division and after fertilization the new individual continue to grow and produce new cells by mitosis.
EVALUATION
- What is reproduction?
- Why is reproduction necessary?
- Differentiate between the two types of reproduction.
FORMS OF ASEXUAL REPRODUCTION
- Binary Fission: Fission is the simplest form and involves the division of a single organism into two complete organisms, each identical to the other and to the parent. Fission is common among unicellular organisms such as bacteria, many protists and some algae.
- Budding: The parent organism develops an outgrowth which subsequently forms the new individual organism. These buds break off from the parent without causing any injury and live an independent life. Budding is common in yeast and hydra
- Spore Formation: Spores are DNA-containing capsules capable of sprouting into new organisms; unlike most seeds, spores are produced without sexual union of gametes, when dispersed, each spore is capable of developing into a new organism. Spores are common in lower organisms especially fungi such as rhizopus and penicillum.
- Fragmentation: A part of the parent organism breaks up and develops into a new independent organism. This type of reproduction is also called regeneration. Fragmentation is common in spirogyra and coelenterates.
- Vegetative Propagation: It occurs in higher plants. In this process, a new plant grows from any portion of an old one other than the seeds. There are two methods of vegetative propagation, this include natural and artificial vegetative propagations.
Natural vegetative propagation involves the use of vegetative parts such as stems, leaves, roots or buds. The part involved must have a store of food and sometimes able to act as a perennating organ i. e. enable the plant to survive from one growing season to the next. Organs of vegetative propagation include;
- Bulbil: Axillary buds growing from the veins of leaves g. Bryophyllum and Begonia.
- Runners or stolons: Stems that creep horizontally on soil surface. Buds and adventitious roots develop from the nodes of the parent plants e. g. sweet potato, grass.
- Rhizomes: Underground horizontal stem. It has scaly leaves which cover lateral buds at the nodes. Lateral buds grow into new aerial shoots e. g. ginger, canna lily.
- Corms: Underground stems which grow vertically in the soil. Buds develop from the axils of scale leaves, grow upward and form leaves and flowers e. g. cocoyam.
- Stem tubers: Underground stems which have swollen tips. Axillary buds on tubers give rise to new aerial shoots e. g. yam, sweet potato
- Suckers: Short underground horizontal branches e. g. banana, pineapple
- Bulb: Underground condensed shoots with compressed stems and scaly leaves e. g. onion, garlic.
Artificial propagation is the use of parts of the parent plant to multiply the plants. Budding, grafting, layering, cutting and marcotting are types of artificial propagation.
EVALUATION
- List four types of asexual reproduction with examples.
- Discuss spore formation in a named fungus.
GENERAL EVALUATION/REVISIONAL QUESTIONS
- List four forms of asexual reproduction giving one example of organism that exhibit each.
- List four common natural vegetative parts in plant giving one example of plant in each case.
- Describe five types of artificial vegetative propagation.
- Briefly describe fragmentation in spirogyra.
- Describe sporulation in amoeba.
READING ASSIGNMENT
College Biology, chapter 16, page 292 – 301
WEEKEND ASSIGNMENT
- Bacteria multiply rapidly by fragmentation B. binary fission C. spore formation D. budding
- The type of reproduction that is common to both Hydra and Yeast is conjugation
- binary fission C. grafting D. budding
- During asexual reproduction in paramecium, how many times does the zygote divide to produce eight nuclei 1 B. 2 C. 3 D. 4
- Vegetative propagation is described asexual reproduction because reproductive organs are not involved B. many new plants are produced C. there is no exchange of genetic materials D. new individuals are not formed
- Which of these organs of vegetative propagation is not a perennating organ? Rhizome B. Sucker C. Bulbil D. Bulb
THEORY
- Describe two types of artificial propagation.
- State three advantages and two disadvantages of asexual reproduction.
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WEEK 2: SEXUAL REPRODUCTION
Overview:
CONTENT
- Sexual Reproduction
- Conjugation
- Fusion of Gametes
- Meiosis
- Excretion
SEXUAL REPRODUCTION
There are two types of sexual reproduction, this include conjugation and fusion of gametes.
Conjugation: the simplest form of sexual reproduction, as contrasted with asexual reproduction. This is observed in… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 3: REPRODUCTION IN UNICELLULAR ORGANISMS AND INVERTEBRATES
Overview:
CONTENT
- Reproduction in Amoeba(Binary and Multiple Fission)
- Reproduction in Paramecium(Sexual and Asexual)
- Reproduction in Spirogyra
- Reproduction in Earthworm
- Reproduction in Cockroach
- Reproduction in Housefly
- Reproduction in Snail
REPRODUCTION IN AMOEBA
Amoeba reproduces asexually by binary fission and multiple fission (sporulation) during adverse condition.
In binary fission when an amoeba reaches full size, it stops moving and divides into… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 4: IRRITABILITY / CELL REACTIONS TO ITS ENVIRONMENT
Overview:
CONTENT
- Irritability and Type of Responses
- Movement
- Organelles for Movement
IRRITABILITY AND TYPES OF RESPONSES
Irritability is the ability of organisms to respond to stimuli. A stimulus is any change in external or internal environmental condition which can bring about a change in… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
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Biology Lesson Note for SS1 (Second Term)
WEEK 5: NUTRITION IN ANIMALS
Overview:
CONTENT
- Animal Nutrition
- Classes of Food
- Balance Diet and its Importance
- Digestive Enzymes
ANIMAL NUTRITION
Animals generally cannot manufacture their food. Rather, they depend directly or indirectly on plants for their food. Hence they are… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 6: BASIC ECOLOGICAL CONCEPTS
Overview:
CONTENT
- Definition and Branches of Ecology
- Ecological Terms ( Environment, Biosphere, Habitat, Ecological Niche, Population, Community, Ecological System, Biome)
- Components of an Ecosystem
BASIC ECOLOGICAL CONCEPTS
DEFINITION OF ECOLOGY
Ecology is the study of plant and animals (as well as microorganism) in relation to their environment. As a practical science, ecological studies involve… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 7: BIOMES
Overview:
CONTENT
- Biomes
- Local Biomes
- World Biomes
BIOMES
Biomes are large natural terrestrial ecosystem, identified by their dominant vegetation. They are terrestrial because… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 8: POPULATION
Overview:
CONTENT
- Population Characteristics
- Population Studies
- Factors that Affect Population
- Simple Measurement of Ecological Factors.
POPULATION CHARACTERISTICS
These include population size, density, frequency, percentage cover and distribution.
- Population size: – this is the number of organisms of the same species living together in a given area at a particular time.
- Population density: – this is the… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
Biology Lesson Note for SS1 (Second Term)
WEEK 9: FUNCTIONING ECOSYSTEM
Overview:
CONTENT
- Feeding Relationship
- Trophic Levels
- Food Chain and Food Web
- Energy Flow and Ecological Pyramids
- Energy Transformation in Nature
- Laws of Thermodynamics
FEEDING RELATIONSHIPS
Since all living organisms must obtain energy and nutrients from the environment in order to remain alive, they are into feeding relationships. This makes… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 10: ECOLOGICAL MANAGEMENT
Overview:
CONTENT
- Types of Association
- Features by organism of an association
TYPES OF ASSOCIATIONS AND THEIR FEATURES
SYMBIOSIS OR MUTUALISM (+ +)
Definition: When both population benefit and at least one of them is so dependent upon the other for some critical resource or function that it cannot survive in the given environment without the other species is referred to as mutualism or symbiosis. Symbiosis is a beneficial association and each member is called a… To Download the Full Lesson Note Online, CLICK HERE. You can also reach us on WhatsApp, Click Here to Chat with us.
WEEK 11: Revision
WEEK 12: Examination
WEEK 13: Examination
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