Describe how different parts of the cell organelles are adapted to their functions(Answered) Describe how the leaf is adapted/ suited to photosynthesis.(Answered) Explain the formation of starch in green plants.(Answered) Describe how various factors affect the rate of photosynthesis.(Answered) Describe the role played by each of the following in human beings(Answered) Describe how various parts of the alimentary canal/ digestive system are adapted/ suited to their functions.(Answered) Describe what happens to a meal rich in carbohydrates, proteins and lipids (fatty meal of ugali, and eggs) along the alimentary canal from ingestion to egestion.(Answered) How are small intestines / ileum adapted/ suited to its function?(Answered) How are villi suited/ adapted to their function?(Answered) Describe the movement of water from the soil to the atmosphere through the leaves.(Answered) Describe how the structural factors which affect the rate of transpiration.(Answered) Describe/ explain how environmental factors affect the rate of transpiration.(Answered) Describe/ explain how blood circulation in mammals take place.(Answered) Explain/ describe the pumping mechanism of the mammalian heart.(Answered) How is the mammalian heart structurally adapted to its function.(Answered) Describe/ explain the transport of the following gases in blood.(Answered) Explain the mechanism involved and the pathway taken by oxygen in human beings from the atmosphere to the liver cells.(Answered) Describe how carbon (IV) oxide produced by the liver cell reaches alveoli cavities in the mammalian lungs.(Answered) Describe how the cellular components of mammalian blood are adapted to their functions/ Describe how human blood is adapted to its function.(Answered) Explain different functions of mammalian blood and for each mention the component involved.(Answered) Describe the process of blood clotting/ how does blood clotting take place in mammals?(Answered) Using relevant example explain how allergic reactions take place in human beings.(Answered) Describe how the gaseous exchange structures in plants are adapted to their function.(Answered) Describe the path followed by glucose from the time of absorption in the ileum until it enters a muscle cell in the leg.(Answered) Describe/ explain mechanisms/ theories of opening and closing of stomata/ describe how the presence of chloroplasts in the guard cells affect opening and closing of stomata.(Answered) 26. Describe the mechanism of gaseous exchange in plants.(Answered) How are respiratory surfaces in animals adapted/ suited to their function?(Answered) Describe/ explain the adaptation of tracheal system of insects to its function/ how is the tracheal system of insects suited to gaseous exchange?(Answered) Describe/ explain the mechanism of gaseous exchange in insects.(Answered) Explain/describe the mechanism of gaseous exchange in a frog.(Answered) Describe the mechanism of gaseous exchange in a bony fish/ tilapia.(Answered) Explain/ describe how the gaseous exchange system in mammals is suited/ adapted to its function.(Answered) Describe/ explain the mechanism of breathing/ gaseous exchange in mammals.(Answered) Explain the factors which affect the rate of breathing in humans.(Answered) Explain the effects of increased physical activity on the following organ systems(Answered) Explain the application of anaerobic fermentation/ respiration in the industry and at home.(Answered) Explain the process/ methods of excretion in plants/ how does excretion occur in plants?(Answered) Explain the economic importance of excretory products of plants.(Answered) How is the mammalian skin adapted/ suited to its function?(Answered) Explain how the skin is adapted to protection, excretion and homeostasis.(Answered) How does the mammalian kidney/ nephron functions/ describe the process of excretion in the kidney/ explain the role of kidney in eliminating excess amino acids from the body/ how is urine formed?(Answered) How is the mammalian kidney/ nephron adapted/ suited to its function?(Answered) Describe/ explain the role of mammalian kidney/ nephron in homeostasis.(Answered) Explain/ describe the role of the liver in homeostasis and excretion.(Answered) Describe the role of hypothalamus in homeostasis.(Answered) Describe how urea is formed and the path it follows from the point of formation until it is eliminated from the body.(Answered) Describe/ explain different ways through which homoitherms/ endotherms regulate their body temperature.(Answered) Explain the effect of abiotic factors in an ecosystem.(Answered) Explain the importance of protecting the forest ecosystem with reference to the following.(Answered) Explain the economic importance of organisms in each of the following kingdoms.(Answered) Giving examples describe the following biotic factors/ interactions among organisms.(Answered) Describe nitrogen cycle/ explain the circulation of nitrogen in the ecosystem.(Answered) Describe different phases/ stages of population growth in an ecosystem.(Answered) Explain how each of the following may affect population growth of the organisms in a habitat.(Answered) Describe how xerophytes, mesophytes, hydrophytes and halophytes are adapted/ suited to their habitats.(Answered) Describe the causes, effects and control of water, air and soil pollution.(Answered) Describe the process of cell division.(Answered) Using relevant examples describe the methods of asexual reproduction.(Answered) Describe the adaptations of a named insect pollinated/ entomophilous flowers(Answered) Describe the adaptations of a named wind pollinated/ anemophilous flowers(Answered) Using relevant examples, describe how fruits and seeds are adapted/ suited to various methods of dispersal.(Answered) How is the human female reproductive system adapted/ suited to its function?(Answered) How is the human male reproductive system adapted/ suited to its function.(Answered) Describe the process of fertilization in human beings.(Answered) Explain/ describe how the placenta is adapted/ suited to its function.(Answered) Describe the role of hormones in menstruation/ menstrual cycle in human females.(Answered) Explain various factors/ conditions that influence seed germination.(Answered) Describe/ explain the process of secondary thickening/ growth in flowering plants.(Answered) Describe/ explain the role of hormones in growth of plants.(Answered) Describe/explain the role of hormones in metamorphosis in insects.(Answered) Explain/ describe the general application of genetics.(Answered) Describe/ explain different evidences that show that evolution took place.(Answered) How does natural selection lead to emergence of new species?(Answered) Describe how mutations arise and their significance in evolution.(Answered) Using relevant example explain industrial melanism.(Answered) Using examples, explain how natural selection takes place.(Answered) Explain how the process of evolution may lead to formation of a new species/adaptation of species to the environment.(Answered) Explain the role of auxins in tropisms/ tropic responses.(Answered) Describe/ explain the roles/ functions of different parts of the mammalian brain.(Answered) Using relevant example, describe/ explain simple and conditioned reflex action.(Answered) Using an illustration explain what happens when a person touches a hot flame.(Answered) A person met a leopard as he walked along the forest path and ran away immediately. Explain how the nervous and adrenal glands worked together to bring about the action observed.(Answered) How is the mammalian eye adapted/ suited to its function?(Answered) Explain/ describe how accommodation of the eye is achieved.(Answered) How is the image formed in the eye?(Answered) Describe the structure and function of various parts of human ear.(Answered) Describe the process of hearing in mammals.(Answered) How is the mammalian ear adapted/ suited to its function?(Answered) Explain/ describe the mechanism of locomotion in finned fish/ How does locomotion occurs in finned fish/ explain/ describe the adaptation of fish to locomotion in its habitat/ water.(Answered) How are cervical, thoracic, lumbar and sacral vertebrae adapted/ suited to their function? (Answered) How are the pectoral and pelvic girdles adapted/ suited to their function?(Answered) How are long bones of limbs suited/ adapted to their function?(Answered) Describe the location, function and characteristics of three types of muscles in mammalian body.(Answered)