NYABURURU GIRLS HIGH SCHOOL BIOLOGY EXAM FORM TWO TERM 1 80 MARKS

BIOLOGY EXAM FORM TWO TERM 1 80 MARKS

• What name is given to the process whereby :
  What name is given to the process whereby : Red blood cells wrinkle after losing their water to a hypertonic solution?(1mk) Crenation Plant cells become flaccid after losing their water to a hypertonic solution?(1mk) Plasmolysis Virus-free.www.avast.com Post Views: 9 Related posts: Branches of Biology Self Evaluation Test BIOLOGY FORM 4 NOTES MODEL28082022001 What do you […]
• What is the Largest Farm in the World?
  The largest farm in the entire world is bigger than Portugal. This massive farm dairy farm is located in Heilongjiang, China. Mudanjiang City Mega Farm has over 100,000 dairy cows and covers an impressive 22.5 million acres. If that doesn’t impress you, Mudanjiang City Mega Farm produces about 800 million liters (about 200 million gallons) […]
• What is oxygen debt?
  The amount of oxygen required to convert (accumulated) lactic acid to water, carbon (IV) oxide and energy/amount of oxygen required to get rid of (accumulated) lactic acid (when supply of oxygen is less than demand)/anaerobic respiration. Post Views: 22 Related posts: Branches of Biology Self Evaluation Test What do you understand by the term cell […]
• What is meant by the terms test-cross?
  A cross made between a (homozygous) recessive parent and a parent of unknown genotype (to determine whether the unknown genotype in homozygous or heterozygous for dorminant gene RELATED QUESTIONS Post Views: 38 Related posts: Branches of Biology Self Evaluation Test What do you understand by the term cell specialization as used in biology Name the […]
• What is meant by the term allele?
  Allele refers to alternative form of a gene which occupy the cell loci which control the same characteristic RELATED QUESTIONS Post Views: 39 Related posts: Branches of Biology Self Evaluation Test What do you understand by the term cell specialization as used in biology Name the most appropriate biological tool that an ecologist student can […]
• What is meant by the term “changing the cycle” in coffee growing?
  It is the removal of old stems usually after 4-6years Post Views: 14 Related posts: Outline four indicators of well rotten compost manure List down four types of financial books farmers should keep Below is an illustration of an activity carried out in agroforestry Describe the establishment of cabbages under the following subheadings., i)Land preparation […]
• What is a plunge dip?
  this is a construction that allows to completely immerse livestock in a liquid that contains an acaricide. Post Views: 16 Related posts: Dipping Procedures Advantages and Disadvantages of Plunge Dips Factors determining stage of crop harvesting. Name four farm records that should be kept by a poultry farmer Form two student put some soil sample […]
• What do you understand by the term cell specialization as used in biology
  (a) What do you understand by the term cell specialization as used in biology? (2 marks) This is where cells are modified to perform specific functions. (b) Name any two specialized cells in plants and state how each is modified. Cell                        Modification         (4 marks) (i) Palisade cells        […]
• What are the essentials to clean milk production?
  Essentials to clean milk production? Healthy milking herd Clean milking cow Healthy and clean milkman Clean milking shed Clean milking utensils Milk filtration, cooling and storage. Avoid flavour in milk Post Views: 25 Related posts: Outline four indicators of well rotten compost manure List down four types of financial books farmers should keep Below is […]
• What are the 3 most common commercial fishing methods?
  What are the 3 most common commercial fishing methods? Post Views: 11 Related posts: List four ways through which soil PH influences crop production Give two reasons for carrying out each of the following operations in the land. a) Rolling b) Leveling State four factors that affect elasticity of demand Describe the establishment of cabbages […]
• UTUMISHI ACADEMY BIOLOGY PAPER 1 PRE-MOCK REVISION KIT 2023 MODEL14012023003
  Post Views: 182 Related posts: The figure below represents a plant GENETICS NOTES BIOLOGY FORM 4 MODEL14012023002 GENETICS REVISION QUESTIONS FORM 4 BIOLOGY MODEL14012023005 RECEPTION-RESPONSE AND COORDINATION BIOLOGY FORM 4 NOTES MODEL14012023004 Name two enzymes which are inactive State the kingdoms to which the following organisms belong Classify the following carbohydrates into monosaccharides, disaccharides and […]
• Two maize pests are shown in the diagram below. Study them and answer the questions that follow
  a) Identify the pests in the diagrams labeled X and Y (1mk)X……………………………………………………………………………………………….Y………………………………………………………………………………………………b) At what stage of maize production does each pest damage the crop. (2mks)X……………………………………………………………………………Y……………………………………………………………………………c) Give one way of controlling each of the pests in the field. (2mks)X………………………………………………………………………………..Y………………………………………………………………………………. Answers (a) X – Maize weevil/Sitophilous zeamais ½ mkY – Squirrel 1/2mk(b) X – Dry grain stage […]
• TOP PREDICTION KCSE BIOLOGY PRACTICAL MODEL08052023012
  TOP PREDICTION KCSE BIOLOGY PRACTICAL MODEL08052023012 Post Views: 55 Related posts: KCSE NATIONAL MOCKS BIOLOGY PRACTICAL MODEL08052023010 KCSE BIOLOGY PAPER 3 MOCKS MODEL08052023008 KCSE FINAL PREDICTION BIOLOGY PRACTICAL MODEL08052023011 KCSE MATHEMATICS REPLICA SERIES REVISION KIT MODEL07052023009 KCSE KISWAHILI REPLICA SERIES REVISION KIT MODEL07052023010 KCSE HISTORY AND GOVERNMENT REPLICA SERIES REVISION KIT MODEL07052023013 KCSE ENGLISH PASSAGES […]
• The transaction below shows Mr Mukindias financial position in his farm business for the year.
  The transaction below shows Mr Mukindias financial position in his farm business for the year 2004.                    Ksh Purchase of pesticides         3,000 Milk sales     –             8,000 Sale of goats                5,000 Closing  valuation           16,000 Interest payable               1,750 Veterinary bills            […]
• The following information was found in Mr. Kamau’s farm record for the year ending December 2014. Study it carefully and answer the questions that follow.
  The following information was found in Mr. Kamau’s farm record for the year ending December 2014. Study it carefully and answer the questions that follow. Bought goats             4,000 Bought poultry            15,000 Bought dairy meal            25,000 Bought pasture seeds        50,000 Transportation of farm produce     15,000 Paid casual workers        12,000 Hired an ox-plough        10,000 Opening valuation       150,000 […]
• The following account of information is from Mr. Ongoros farm for the year ended 31/12/2012.
  (i) Using the information above, prepare a profit and loss account for Mr. Ongoro’s farm. (4mks)(ii) From the calculation in (i) above, state whether Mr. Ongoro made a profit or loss. (1mk) Answers Marks allocation        Correct columns – Income – 1/2mk                           – Expenditure 1/2mk        Correct title – 1/2mk        Correct entries […]
• The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple.
  The figure below shows a small piece of visking tubing which is filled with potassium permanganate solution. Its free ends were tied tightly to prevent leakage .It was then dipped in a beaker full of distilled water. The set up was left for 2 hours .Its was observed that the distilled water was coloured purple. […]
• The figure below represents a plant
  The figure below represents a plant. a) State the division it belongs to. (1mk) Post Views: 11 Related posts: State two reasons why the Portuguese built Fort Jesus at Mombasa Give one reason why the British colonial government encouraged white settlers to come to Kenya State the major challenge in the Kenya healthy sector. Give […]
• The equation below represents a process that takes place in plants.
  The equation below represents a process that takes place in plants. Name the process. (1mk) Photosynthesis State three conditions necessary for the process to take place. (3mks) Presence of light Carbon IV Oxide Optimum temperature Water Chlorophyll State three ways in which leaves are adapted to carry out the process named in Above efficiency (3mks) […]
• The diagrams illustrated below shows tools used in the farm. Study the carefully and answer the questions that follow.
  The diagrams illustrated below shows tools used in the farm. Study the carefully and answer the questions that follow. a) Identify the tools labelled P and Q. (2 marks) P    wood float Q     mason’s trowel b) State the use of the tools labelled M and N. (2 marks) M     harvesting crops such as rice […]
• The diagrams below illustrate field management practices. Study them carefully and answer the questions that follow
  The diagrams below illustrate field management practices.  Study them carefully and answer the questions that follow Identify the field practices. M___________________ (1mk)     Trelishing N____________________(1mk)     Earthing up Name a crop that can be managed using management (M) above.(1mk) Crops managed using management. M passion fruits Some bean varieties.         Thorn melon                  Give […]
• The diagram shows a management practice carried out on certain crops
  (c) State three reasons for carrying out above practice. (1½mks) Answers (a) Staking (1mk)(b) Tomatoes – watermelonPumpkins garden peasSome bean varieties(c) Production of clean fruitFacilitates spraying and harvesting of cropsControl disease outbreak e.g. blightPrevent infestation of soil borne pests Post Views: 6 Related posts: Outline four indicators of well rotten compost manure List down four […]
• The diagram illustrated below shows a petrol engine fuel system. Study it carefully and answer the questions that follow.
  The diagram illustrated below shows a petrol engine fuel system. Study it carefully and answer the questions that follow. a) Name the parts labelled X, Y and Z.(3 marks) X fuel tank cap Y oil filter Z   exhaust pipe b) State the maintenance practice of the following parts;(2 marks) i) Fuel tank cap Ensure it […]
• The diagram illustrated below shows a method of grafting. Study it carefully and answer the questions that follow.
  The diagram illustrated below shows a method of grafting. Study it carefully and answer the questions that follow. a) Identify the type of grafting illustrated above. Whip grafting/tongue grafting b) Name the parts named G1 and G2. G2    root stock G1     scion c)State three advantages of grafting in agroforestry. The farmer is able to get […]
• The diagram illustrated below shows a DAP fertilizer bag. Study it carefully and answer the questions that follow.
  The diagram illustrated below shows a DAP fertilizer bag. Study it carefully and answer the questions that follow. a) What do the figures labelled on the diagram stand for. 18% N, 46%P2O5, 0% K2O b) With a reason name the class of inorganic fertilizer that DAP belong. Incomplete compound fertilizer, Reason; contains only two primary […]
• The diagram below shows two methods of handling livestock in the farm. Study them and answer the questions that follow.
  The diagram below shows two methods of handling livestock in the farm. Study them and answer the questions that follow. a) Identify the methods of handling labelled L and M. (1 marks) L   casting M   use of a halter b) Give two occasions when it may be necessary to carry out the practice labelled L […]
• The diagram below shows the position of an image formed in a defective eye
  a) Name the defect. Hypermetropia/long sightedness b) Explain how the defect named in (a) above can be corrected. Post Views: 28 Related posts: Branches of Biology Self Evaluation Test BIOLOGY FORM 4 NOTES MODEL28082022001 What do you understand by the term cell specialization as used in biology Name the most appropriate biological tool that an […]
• The diagram below shows a silo. Study it carefully and answer the questions that follow
  The diagram below shows a silo. Study it carefully and answer the questions that follow a)    Identify the type of silo shown on the diagram.                           (1mark) …………………………………………………………………………………………………………………………… b) State the use of the part labeled M and N                              (2marks) M ……………………………………………………………………………………………………. N  ……………………………………………………………………………………………………. c) Give […]
• The diagram below represents the lower jaw of a mammal
  The diagram below represents the lower jaw of a mammal Name the mode of nutrition of the mammal whose jaw is shown. (1mk) Holozoic Nutrition. Give reason for your answer in (a) above. (1mk) -Presence of teeth- shows feeds on solids. State one structural and one functional difference between the teeth labeled J and L. […]
• The diagram below illustrates crop diseases, study the diagrams carefully and answer the questions that follow
  The diagram below illustrates crop diseases, study the diagrams carefully and answer the questions that follow: Identify the crop disease illustrate in the diagrams. P:_____________________(1mk) Q:________________________(1mk) Diseases P- Bacterial wilt Q- Maize smut Give the causative agent for each of the  diseases illustrated above. P_____________________(1mk) Q_____________________ (1mk) Causative agent P – Bacteria ( pseudomonas solanacearum) […]
• The diagram below illustrate a method of irrigation carried out on the farm
  (i) Identify the type of irrigation shown above. (1mk)(ii) Name two advantages of the above method. (2mks) Answer (i) Furrow irrigation 1×1 =1mk(ii)Reduce fungal diseases eg blightCheap to establish & maintainRequire little skills. Post Views: 4 Related posts: Outline four indicators of well rotten compost manure List down four types of financial books farmers should […]
• The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution.
  The cells shown below were obtained from two different plant cells which were immersed in 25% and 2% salt solution. Which of the two cells A and B was immersed in; (2mks) 25% salt solution………………………………………………A 2% salt solution………………………………………………..B Comment on the cell placed in 25% salt solution  (2mks) The cell placed in 25% salt solution […]
• Study the diagram below of crop propagation and answer the following questions
  Study the diagram below of crop propagation and answer the following questions a)    Identify the propagation method                                        (1mark) …………………………………………………………………………………………………………………………………. b) State two factors that encourage root formation in the above method of propagation    (2marks) ………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………. c). Name two crops that can be propagated using the above method […]
• State two roles of green plants in fish ponds other than providing food
  Post Views: 25 Related posts: Name the structures in phloem that are involved in the translocation of sugars Other than sugars, name two compounds that are translocated in the phloem Branches of Biology Self Evaluation Test What do you understand by the term cell specialization as used in biology Name the most appropriate biological tool […]
• State two properties of monosaccharide
  State two properties of monosaccharide. (2mks) sweet taste soluble in water What is the main function of monosaccharide in organisms? (1mk) Provision of energy. Virus-free.www.avast.com Post Views: 4 Related posts: Branches of Biology Self Evaluation Test BIOLOGY FORM 4 NOTES MODEL28082022001 What do you understand by the term cell specialization as used in biology Name […]
• State two precautions to be taken when harvesting cotton.
  State two precautions to be taken when harvesting cotton. Should not be harvested when wet Avoid placing harvested cotton in sisal bag Avoid mixing harvested cotton with leaves and twigs Pick weekly for maintenance of quality Virus-free.www.avast.com Post Views: 25 Related posts: Identify THREE main institutions of British Parliament Explain six functions of monarchy in […]
• State two non – chemical methods of controlling storage pests in a maize granary
  Post Views: 3 Related posts: Outline four indicators of well rotten compost manure List down four types of financial books farmers should keep Below is an illustration of an activity carried out in agroforestry Describe the establishment of cabbages under the following subheadings., i)Land preparation ii)Transplanting Identify THREE main institutions of British Parliament State two […]
• State two factors that influence the supply of casual labour in a farm
  Post Views: 10 Related posts: Outline four indicators of well rotten compost manure List down four types of financial books farmers should keep Below is an illustration of an activity carried out in agroforestry Describe the establishment of cabbages under the following subheadings., i)Land preparation ii)Transplanting Identify THREE main institutions of British Parliament State two […]
• State two disadvantages of late defoliation in pasture management
  State two disadvantages of late defoliation in pasture management Has low dry matter digestibility . Has low leaf ; stem ratio / less leafy Has low crude protein yield Virus-free.www.avast.com Post Views: 5 Related posts: Identify THREE main institutions of British Parliament Explain six functions of monarchy in Britain. Define the following terms as used […]
• State three ways in which crop rotation improves soil fertility.
  State three ways in which crop rotation improves soil fertility. Leguminous crops should be included to improve soil fertility Crops of different families should be alternated to discourage excessive soil borne pests and diseases Inclusion of grass ley to maintain a good soil structure Virus-free.www.avast.com Post Views: 8 Related posts: Identify THREE main institutions of […]
• State three ways in which a farmer can adjust to risks and uncertainties
  Post Views: 5 Related posts: Outline four indicators of well rotten compost manure List down four types of financial books farmers should keep Below is an illustration of an activity carried out in agroforestry Describe the establishment of cabbages under the following subheadings., i)Land preparation ii)Transplanting Identify THREE main institutions of British Parliament State two […]
• State three ways by which plant nutrients may be lost from the soil
  Ways through which plant nutrients are lost Leaching Plant uptake Volatilization /burning Virus-free.www.avast.com Post Views: 6 Related posts: Outline four indicators of well rotten compost manure Give four advantages of rotational grazing List four ways through which soil PH influences crop production Give two reasons for carrying out each of the following operations in the […]