Biology · Paper 2 · 2018
51 questions 🏝 ZEC ✓ Official ZEC answersBiology · Paper 2 · 2018
51 questions
3-hour timed simulation · auto-graded · counts toward ranking
Pay & start exam →Section A
x. The organ for gaseous exchange in fish A: Lung B: Trachea C: Skin D: Gills
Match the items from LIST A with the response in LIST B by writing the letter in the table below.
Upgrade to see model answers.
Read the sentences below very carefully, and then fill the blank spaces. Use one word for each space. a) In 1665 Robert Hooke designed a _________________________ b) The two basic types of cells are ________________and_________________. c) The cell organelles are suspended in the _____________________________ d) The nucleus is made of a fluid called _________________________________ e) Smooth endoplasmic reticulum is the site for the manufacture of ____________. f) The inner folds of mitochondria are called __________________and these are the sites of _________________________ g) The green pigment in plants is ______________________.It is found in the cell organelle called____________________.
Upgrade to see model answers.
a) Name any two (2) types of water-borne disease. b) Tuberculosis is an air-borne communicable disease. Write a short essay about it, using the following sub-headings as a guidelines i) The cause and the transmission of the disease ii) The signs or symptoms of the disease iii) The effects of the disease iv) Prevention and treatment of the disease
Upgrade to see model answers.
a) Define ecosystem. b) Write a short description on i) Biotic component of the environment and their characteristics ii) Abiotic component of the environment and their characteristics
Upgrade to see model answers.
Section B
a) List down any three (3) disorders of the digestive system i) _____________________________________________________________ ii)______________________________________________________________ iii)______________________________________________________________ b) Write any three (3) differences between the human digestive system and the ruminant digestive system Human digestive system Ruminant digestive system i) ii) iii) c) i) Label the parts shown on the cross section of the tooth of the human being P_____________________ Q_____________________R______________________ S____________________T_______________________ U_____________________V _______________________ ii) Identify the type of the tooth above
Upgrade to see model answers.
a) Mention two (2) ways in which food nutrients and energy flow within the organisms b) Show diagrammatically the representation of the different trophic levels c) State two (2) forms of the close association between organisms in symbiosis d) Contrast between predation and competition
Upgrade to see model answers.
a) Define blood transfusion. b) List any two (2) precautions taken during blood transfusion i) ii) c) Mention any two (2) reasons for a patient to have blood transfusion. i) ii) d) In a table below put a tick (√) where the blood is compatible and a star (*) where the blood is incompatible to the donor and recipient. Donor’s blood group Recipient’s Blood group A AB O A AB O
Upgrade to see model answers.
When you were playing football, your friend fell down and had a bruise on his arm. Outline three steps on how to give him first aid.
Upgrade to see model answers.
i. Mention the bacteria that cause Cholera. ii. What is the shape of that bacteria causing Cholera? iii. What is the name of scientific study of bacteria?
Upgrade to see model answers.
iv) The diagram below shows the demonstration of the process of osmosis using the Visking tubing, label the letters in the apparatus as shown. Page 10 of 14 Candidate’s Examination Number __________________ C ____________________________ D ___________________________ E _____________________________ F____________________________
Upgrade to see model answers.
Section C
The function of the labelled item F is _________________________________.
Upgrade to see model answers.