Giving examples give an account of the evidences of organic evolution

 Giving examples give an account of the evidences of organic evolution

chemistry-notes-questions-and-answers-for-o-and-a-level.

A LEVEL CHEMISTRY AND PHYSICS NOTES AND QUESTIONS

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A LEVEL CHEMISTRY PASTPAPERS FOR UGANDA NATIONAL EXAMINATION 

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UACE JOINT MOCK EXAMINATIONS 2010 P525/1 CHEMISTRY PAPER 1

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UACE JOINT MOCK EXAMINATIONS 2010 P525/2 CHEMISTRY PAPER 2

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UACE JOINT MOCK EXAMINATIONS 2010 P525/3 CHEMISTRY PAPER 3

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UCE JOINT MOCK EXAMINATIONS 2010

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UCE JOINT MOCK EXAMINATIONS 2010 545/2 CHEMISTRY PAPER 2

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UCE JOINT MOCK EXAMINATIONS 2010 545/3 CHEMISTRY PAPER 3

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UGANDA ADVANCED CERTIFICATE OF EDUCATION UNNASE JOINT MOCK

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EXAMINATIONS CHEMISTRY PAPER 1
UGANDA NATIONAL EXAMINATION BOARD CHEMISTRY 1992

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UGANDA NATIONAL EXAMINATION BOARD CHEMISTRY 1993

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UGANDA NATIONAL EXAMINATION BOARD CHEMISTRY 1994

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UGANDA NATIONAL EXAMINATION BOARD CHEMISTRY 1996

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UGANDA NATIONAL EXAMINATION BOARD CHEMISTRY 1997

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UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 1995 CHEMISTRY

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UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 1998 CHEMISTRY

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UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 1999 CHEMISTRY

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UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2000 CHEMISTRY

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UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2002 CHEMISTRY

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biology notes questions and answer for o level

• A LEVEL PAST PAPERS FOR UNEB
  

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• UGANDA NATIONAL EXAMINATION BOARD PAST PAPER BIOLOGY 2001
  

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• UGANDA NATIONAL EXAMINATION BOARD PAST PAPER FOR O LEVEL BIOLOGY
  

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• UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2003
  

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• UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2004
  

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• UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2005
  

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• UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2006
  

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• UGANDA NATIONAL EXAMINATION BOARD PASTPAPER 2007
  

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• UGANDA NATIONAL EXAMINATION BOARD CHEMISTRY 1992
  

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• FIND ALL PAST PAPERS FOR UNEB AND ANSWERS FOR O LEVEL
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PAST PAPER 2002
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PASTPAPER 2003
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PAST PAPER 2004
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PAST PAPER 2005
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PAST PAPER 2006
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PAST PAPERS 2008
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PASTPAPER 1999
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PASTPAPER 2003
  

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• UGANDA NATIONAL EXAMINATION BOARD BIOLOGY PASTPAPER 2007
  

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POPULAR QUESTIONS AND ANSWERS

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• (a) Describe causes and effects of water pollution. (10mks)
  

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• (b) Describe the various control measures for water borne diseases. (10mks)
  

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• (a) Explain the roles of the mammalian placenta. (7 mks)
  

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• (i) Blood has two broad functions namely protective and transport. Describe how the blood protects the body. (4 marks)
  

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• (ii) Describe the structural adaptation of the mammalian heart to its function. (16 marks)
  

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•  (i) Describe epigeal germination of a seed [ 6 marks ]
  

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• (ii) In a tabular form, state three differences between epigeal germination and hypogeal germination [ 3 marks ]
  

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• (b) (i) What is seed dormancy? [2 marks ]

TOPICAL QUESTIONS AND ANSWERS

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(ii) State three ways by which dormancy in seeds can be broken

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) Describe how hormones regulate the menstrual cycle in human females. (13 mks)

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) Name two functional parts of the mammalian circulatory system. (2 marks)

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b) Name two diseases of the mammalian circulatory system. (2 marks)

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c) Describe water movement from the soil into a plant until it is lost to atmosphere through the leaf. (16 marks)

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) State any two functions of the placenta. (2mks)

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Describe the role of hormones in the human menstrual cycle. (18mks)

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5 CHARACTERISTICS OF AN ARTHROPODA

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How are leaves adaptated to their function?

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HOW ARE LEAVES OF MESOPHYTES SUITED TO THEIR FUNCTION? (20MKS)

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GENETICS

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Germination

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GIVING EXAMPLES GIVE AN ACCOUNT OF THE EVIDENCES OF ORGANIC EVOLUTION. (20MKS

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 BLOOD HAS TWO BROAD FUNCTIONS NAMELY PROTECTIVE AND TRANSPORT. DESCRIBE HOW THE BLOOD PROTECTS THE BODY. (4 MKS)

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(II) DESCRIBE THE STRUCTURAL ADAPTATION OF THE MAMMALIAN HEART TO ITS FUNCTION. (16MKS)

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KINGDOM MONERA

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KINGDOM PLANTAE

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Locomotion

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Locomotion

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MITOSIS

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Gaseous exchange in amphibians

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GASEOUS EXCHANGE IN ANIMALS AND PLANTS

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Gaseous exchange in insects

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How are different leaf modifications of importance to given plants

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NAME THE PARTS OF THE LIGHT MICROSCOPE AND STATE THEIR FUNCTIONS

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NUCLEIC ACIDS AND THE GENETIC CODE.

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OUTLINE THE CHARACTERISTICS OF THE MERISTEMATIC TISSUES .[4MKS]

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b. STATE AND DESCRIBE THE TYPES OF MERISTEMS. [16MKS]

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Plant Structure and Function

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Sexual Reproduction in Flowering Plants
TRANSPORT OF ORGANIC SOLUTES IN THE PHLOEM

•  DESCRIBE CAUSES AND EFFECTS OF WATER POLLUTION. (10MKS)
  

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• (B) DESCRIBE THE VARIOUS CONTROL MEASURES FOR WATER BORNE DISEASES (10MKS)
  

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• A) DESCRIBE THE PROCESS OF FERTILIZATION IN FLOWERING PLANT. (15 MKS)
  

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• B) STATE THE CHANGES THAT TAKE PLACE IN A FLOWER AFTER FERTILIZATION. (5 MKS)
  

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• A) EXPLAIN THE FACTORS THAT AFFECT THE RATE OF TRANSPIRATION IN PLANTS. (12 mks)
  

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• B) DESCRIBE DIFFERENT WAYS IN WHICH PLANTS RESPOND TO DIFFERENT STIMULI. (8 mks)
  

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• A) GIVE THE FUNCTIONS OF THE SKIN IN ORGANISMS. (6 MKS)
  

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• B) HOW IS THE MAMMALIAN SKIN MODIFIED TO ENABLE IT PERFORM ITS FUNCTIONS? (14MKS)
  

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• a) i) Define the term organic evolution. (2mks)
  

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• ii) Distinguish between homologous and analogous structures. (2mks)
  

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• iii) Discuss the various evidences of organic evolution. (16mks)
  

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• a) Name three supportive tissues in woody plants. (3 marks)
  

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• b) State three functions of the endoskeleton. (3 marks)
  

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• c) Explain how the girdles are adapted to their functions. (14 marks)
  

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• a) What is natural selection? ( (2 mks)
• b) Discuss three examples of natural selection in action
  

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• a)Describe mitosis and its importance.
• About
  

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• ADAPTATIONS OF THE RESPIRATORY SYSTEM TO GASEOUS EXCHANGE (20 mks)
  

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• DESCRIBE THE ROLE OF HORMONES IN THE FEMALE MENSTRUAL CYCLE (20MKS)

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• Describe the role of hormones in the mammalian female reproductive cycle. (20 marks)
  

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• ECOLOGY
  

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• Discuss the various evidence of organic evolution
  

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• Enzymes
  

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• Evolution
  

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• :
• EXCRETION
  

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• EXCRETION.

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WHAT IS THE ROLE OF THE LIVER IN THE MAINTENANCE OF A CONSTANT LEVEL OF MATERIALS IN THE BODY. (20mks))

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With the aid a labelled diagram describe a human sperm

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MAMMALIAN TEETH

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MEIOSIS

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Growth and differentiation in plants

• BIOLOGY
  

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• BIOLOGY PAPER 1 THEORY TIME: 2½ HOURS
  

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• UNNASE MOCK 2010 553/1 BIOLOGY
• BIOLOGY QUESTIONS AND ANSWERS
• BIOLOGY-QUESTIONS-AND-ANSWERS-FOR-O-AND-A-LEVEL
  

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• CELLULOSE DIGESTION
  

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• Descrbe the process that take place.in. the light Stage of photosynthesis.
  

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• DESCRIBE CAUSES AND METHODS OF CONTROLLING WATER POLLUTION. (20 MKS)
  

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• DESCRIBE HOW HUMAN MALE REPRODUCTIVE SYSTEM IS ADAPTED TO PERFORM ITS FUNCTIONS (20MKS)
  

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• Describe how seeds and fruits are suited to their modes of dispersal. (20marks)
  

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• Describe how water moves from the soil into the root through the stem then into the leaf to the Atmosphere.(17mks)
  

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• (b) State three mechanisms by which manufactured food is translocated in plants
  

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• Describe how xerophytic plants are structurally adapted to their habitat. (20 marks)
  

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• Describe the adaptations of the ileum to its function (20 marks)
  

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• DESCRIBE THE DIGESTION OF A BUTTERED PIECE OF BREAD FROM THE TIME IT IS INGESTED UNTIL IT IS ABSORBED IN THE BODY. (20MKS)
  

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• DESCRIBE THE FUNCTIONS OF THE PARTS OF A MAMMALIAN SKIN. (20 MKS)
  

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• Describe the mechanisms of breathing in and out in mammals
  

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• Describe the process by which tissue fluid and lymph are formed?
  

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• Describe the process of digestion of food from the mouth to the stomach The mouth
  

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• Describe the process of DNA replication in. Prokaryotes
  

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• Describe the process of translation, leading to polypeptide formation
  

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• EXPLAIN FIVE ABIOTIC FACTORS THAT AFFECT THE ECOSYSTEM (20M]
  

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• EXPLAIN HOW ABIOTIC FACTORS AFFECT PLANTS. (20MKS)
  

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• EXPLAIN HOW THE MAMMALIAN HEART IS ADAPTED TO PERFORM ITS FUNCTION. (20MKS)
  

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• Explain the different evidences of evolution
  

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• GASEOUS EXCHANGE AND RESPIRATION
• Gaseous exchange in a bony fish
  

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• UNNASE UCE MOCK EXAMINATIONS 2010 BIOLOGY PRACTICAL PAPER 2 – 553/2
  

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• What are the Characteristics of Impulses
  

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• What is the Difference Between Co-dominance and Incomplete Dominance
  

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• What is the role of meiosis to animals and plants?
  

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Growth and differentiation in plants

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WHAT IS THE ROLE OF THE LIVER IN THE MAINTENANCE OF A CONSTANT LEVEL OF MATERIALS IN THE BODY. (20mks))

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With the aid a labelled diagram describe a human sperm

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tropism is a growth response of a plant to an external stimulus.

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MAMMALIAN TEETH

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MEIOSIS