•This paper consists sections A, B and C with total of 10 questions
•Answer all questions
•Write your name in every paper of your answer sheets
SECTION A: 15 Marks
Answer all questions in this section
1. For each items (i-x) choose the most correct answer among the given alternative and write its letter in the box provided
(i) Which branch of biology deals with the study of plants ?
A.Taxonomy
B. Botany
C. Ecology
D. Zoology
(ii) A liver is an example of :-
A.Tissue
B.a system
C.an organ
D. an organelle
(iii) The ability of the body to resist various infection :-
A.Vaccination
B.immunity
C.injection
D.disease
(iv) State of physical, mental and social well being is .
A.Health
B.Immunity
C. Diseases
D. Good manner
(v) Practice of keeping oneself clean all the time by maintaining a clean body from time to time is .
A.Good manner
B. Personal hygiene
C.Health
D.Immunity
(vi) Which of the following will be a step to follow in a scientific procedure after formulating a hypothesis?
A.Conclusion
B.Experimentation
C.Observation
D.Problem identification
(vii) A mother went to a hospital with her baby complaining of the baby's high body temperature. Which instrument will be used to examine the baby.
A.Beam balance
B. Thermometer.
C.Stop watch
D.Stethoscope.
(viii) Why is advised to build an incinerator in every hospital and health center?
A.For burning hazardous wastes
B. For collection wastes
C. For disposing gaseous wastes.
D. For disposing liquid wastes
(ix) Which is not advisable when giving First Aids to a Snake bite victim?
A.Calm them down
B.Cut the wound.
C.Remove jewelery from the bitten part
D.Lower the bitten
(x) Maimuna is a form one student with a dream to be an expert of fungi. What biological term can describe her in the future?
A.Microbiologist
B.Physiologist
C.Mycologist
D.Entomologist
2. Match the description of scientific procedures in LIST A with the corresponding scientific procedures in LIST B by writing the letter of the correct response below the item number in a table provided.
SECTION B (70 Marks)
Answer all questions in this section
3. Mr. Mzee is a laboratory technician at Mtoni Secondary School. He decided to use form two A stream (classroom) as biology laboratory.
(a) What modification should be done to meet the standard?
4. Complete each of the following statements by writing the correct answer in the space provided:
(i) __________________ is used for cutting hanging skin and dressing materials.
(ii) _______________ are important for cleaning cuts wounds and preventing infections.
(iii) _______________ is helpful for removing thorns and insects stings left behind in the body.
(iv) _______________ is a painful and swollen part of the skin with no cut.
(v) A sudden involuntary contraction of muscles that is painful and makes them temporarily unable to work properly is called _____________________________
5. (a) What do you understand by the term risky behaviour?
(b) Give examples of risky behaviours and practices. (4 points)
(c) Explain any four (4) skills which can help to avoid risky behaviours and practices.
6. (a)What do you understand by the term ‘’ water borne diseases’’ as used in biology?
(b) Name any three water borne diseases
7. Name and draw the Laboratory apparatus that can be used to:
(a) Crush and grind solid complex things into fine powdered or soft simple substances.
(b) Picking up smaller animals such as insects without hurting them.
(c) Estimate the population of living things in an area.
(d) put and observe specimen closely.
(e) Heat, test and store chemicals.
8. (a) State the functions of the following parts of the microscopes.
(i) Mirror (ii) Arm (iii) Base
(b) Calculate the highest total magnification of the Light microscope with 10x Eyepieces lens and 15x as well as 40x Objective lens magnification.
9. (a) Explain four habits that everyone must consider during conversations.
(b) How can you know that a female human being is in puberty stage? Give six points.
SECTION C: (15Marks)
10. Discuss seven (7) factors that affect the ability of the body to fight against infections.
This paper consists of section A, B and C with the total number of ten(10) questions
Answer all questions in each section
Section A carries (15) marks, section B (70) marks and section C carries (15) marks
All writing must be in blue/black ink except drawing which must be in pencil
Cellular phones and any unauthorized materials are not allowed in the assessment room.
SECTION A (15 Marks)
Answer all questions in this section
1. For each of the items (i) – (x) choose the correct answer from among the given alternatives and write its letter beside the item number in the answer sheet provided
The basic unit of life is called a:
A. Tissue
B. Organ
C. System
D. Cell
The study of insects is called:
A. Mycology
B. Herpetology
C. Entomology
D. Zoology
Which science is closely related to biology and helps in understanding the chemical basis of life?
A. Physics
B. Chemistry
C. Geology
D. Astronomy
The first step in the scientific method is:
A. Formulating a hypothesis
B. Making an observation
C. Analyzing data
D. Conducting an experiment
The scientific method is valuable because it:
A. Guarantees accurate results
B. Provides a systematic way of asking and answering questions
C. Eliminates the need for creativity
D. Allows scientists to skip the experimental stage
Which of the following is NOT a common laboratory apparatus?
A. Test tube
B. Beaker
C. Telescope
D. Graduated cylinder
One important biology laboratory safety rule is:
A. Always wear closed-toed shoes
B. Ignore warning labels
C. Run around the lab when excited
D. Work independently at all times
The symbol of a skull and crossbones often indicates:
A. A flammable substance
B. A radioactive material
C. A poisonous substance
D. A slippery surface
Which is a key aim of providing first aid?
A. To prevent further injury or illness
B. To diagnose the underlying condition
C. To provide long-term medical treatment
D. To replace the need for emergency care
If someone is bleeding severely, the first step in first aid is to:
A. Clean the wound
B. Apply direct pressure to the wound
C. Elevate the wound
D. Apply ice
2. Match the item in Column A with its primary use in Column B.
Column A
Column B
Sterile gauze pads
Bandages
Antiseptic wipes
Tweezers
Antibiotic Ointment
Removing small splinters or debris from wounds.
Preventing infection in minor cuts or scrapes
. Covering and protecting minor wounds.
Cleaning a wound before applying bandages.
Stopping bleeding and absorbing blood
SECTION B: 70 MARKS
3. (a) Define the word “biology”
(b) Write down 3 importance of studying biology
List down 4 branches of biology
4.(b)Differentiate between botany and zoology
(b) Mention characteristics of living things (7)
5.(a)Differentiate between;
Specimen and model
Temperature and body temperature
Fact and theory
Explain one function of each of the following biology laboratory apparatus and equipments.
Test tube holder
Test tube rack
Petri dish
Motor and pestle
Test tube brush
a) Define the following terms
first aid
first aid kit
b) Who should give first Aid?
c) Give the benefits of giving first Aid to an accident victim.
7. (a) state the steps that should be taken to prevent yourself from getting infections when giving first aid.
(b) Mention three specimens that can be found in biology laboratory
8. Outline the procedure of giving first Aid to an accident victim
a) Snake bites
b) Electric shock
9.(a) what are muscles cramps
b) Give the causes of muscle cramp
c) Mention ways of preventing muscle cramps
10. (a)Mention ten common accidents which can occur at home.
(b) Identify six items found in a first aid kit an state their uses.
This paper consists of sections A, B and C with a total of ten (10) questions.
Answer all questions
Section A and C carry fifteen (15) marks each and Section B carry seventy (70) marks.
All writing must be in blue or black ink except drawing which must be in pencil.
Cellular phones and any unauthorized materials are not allowed in the assessment room.
SECTION A
For each of items (i) – (x) choose the correct answer from among the given alternatives and write its letter in box provided.
Which organism below is a prokaryote?
Zea mays
Vibrio cholerae
Rhizopus
Amoeba
Virus
A sexual transmitted disease characterized by yellow discharge from penis or vagina and pain during urination in males is;
Candidiasis
Gonorrhoea
Syphilis
Trichomoniasis
Hepatitis.
Which of the following is a site for ribosome formation?
Nucleus
Rough endoplasmic reticulum
Golgi body
Nucleolus
Cytoplasm
Preparing specimen for sectioning and viewing is termed as;
Staining
Sectioning
Resolution
Magnification
Fixation.
The study of small organisms is termed as;
Virology
Mycology
Micro-biology
Parasitology
Genetics.
The best way to control typhoid is through;
Vaccination
Treatment
Maintain personal and environmental hygiene
Proper disposal of feaces
Water treatment.
The purpose of a control experiment in investigation is;
Identify the problem
Test hypothesis
Display results
Confirm results
Predict results
Which of the following diseases is caused by bacteria?
Sleeping sickness
Malaria
Aids
Tuberculosis
Askariasis
The outer living structure of a cell is;
Cell wall
Cytoplasm
Cell membrane
Nuclear membrane
Ectoplasm
In which of the following tissues can rapid mitotic cell division be seen?
Nerve cell
Heart
Embryonic
Muscles
Epidermal
The following are specialized cells and their adaptations. Much each cell with the adaptions
CELL
ADAPTATIONS
Palisade cells
Sperm cell
Root hair cell
Ovum cell
Guard cell
Has large vacuole. Long and slender
Has long tail and many mitochondrion
Has very large nucleus
Has many lysosomes
Contain a lot of chlorophyl
Has thin outer wall and thick inner wall
Has rapid mitotic division
SECTION B. 70 MARKS. ANSWER ALL QUESTIONS FROM THIS SECTION.
(a) State the cell theory
(b) Explain two differences between prokaryotic and eukaryotic cell
(c ) Name the organelle that performs the following functions
Synthesis of protein
Transporting cell secretions
Controlling vital processes in the cell
Controlling materials entering and leaving the cell
4. (a)Waste is any substance that is no longer in use, the teacher said. Mwajuma asked to a teacher to explain the meaning of waste disposal. If a teacher chose you what answer did you respond to Mwajuma?
(b)Poor waste disposal has led to many effects. Continue telling Mwajuma the effects of poor waste disposal (use 4 effects)
5. (a) Sophia does not know the meaning of some biological phenomena. As the biologist help Sophia to explain the meaning of these biological phenomena which are unknown.
i. Cell differentiation
ii. An organ
iii. A system
(b)What are three examples of specialized cells of animals?
6. Study the diagram of the following organisms carefully and answer the questions that follow:
(a) Identify the organisms above by their common Names:
R is: _________________________________________________________
S is: _________________________________________________________
(b) Classify the above organisms up to class level.
(c)State the locomotory structures of the organisms above.
R _____________________________________________________________
S _____________________________________________________________
7. (a) Mr. Moshi reminded all science students to always follow laboratory safety rules.
By giving three (3) reasons, explain why it is necessary to adhere to this remainder?
(b) If you go to any science (Biology) Laboratory, you will come across containers carrying different chemicals. Draw and name chemical warning sign that can be found in the containers of the following chemicals: (i) Pesticides and poison
b) State and explain three principles of waste disposal.
(a) Explain briefly how cell membrane is made ____________________________________________________________________________________________________________________________________
(b) Give two function of plasma membrane
(i) __________________________________________
(ii) __________________________________________
(b) Explain four principles of cell theory
A) Mention five (5) laboratory rules you know
______________________________________________
______________________________________________
______________________________________________
______________________________________________
______________________________________________
b) Mention five causes of accidents in the laboratory.
I) Draw the following apparatus found in the laboratory.
(a) Funnel (b) Beaker
(c) Measuring cylinder (d) Test tube
II) List four importance of studying biology
SECTION C (20 Marks) Answer one (1) question from this section.
a) i) what do you understand by the term ‘’ laboratory’’?
ii) Outline four qualities of a good laboratory
b) Mention one function of the following;
i) Petri- dish
ii) Morta and pestle
iii) Handlens
iv) Thermometer
WRITE an essay on balanced diet using the following subheadings;
Meaning of a balanced diet
Components of balanced
Importance of each component
Deficiency diseases which may results when a person does not eat a balanced diet
Two factors which contribute to lack of a balanced diet among children in Tanzania
Answer all questions in section A and B and ONE question in section C.
All answers should be written in the spaces provided.
SECTION A (20 MARKS)
1. Choose the correct answer and fill in the space provided.
(i) Which are the two main branch of biology
Cytology and ethnology
Botany and zoology
Menology and orthology
Limnology and hydrobiology
(ii) Which of the following sets include a characteristic, which is not exclusive to living organisms?
Feeding, irritability and growth
Reproduction, death and definite shape
Excretion, locomotion and feeding
Growth movement and respiration
(iii) Which of the following is most important basic difference between plants and animals?
Growth
Movement
Nutrition
Irritability
(iv) The following are branches of biology. Which one is not?
Microbiology
Ecology
Science
Taxonomy
(v) Characteristic of living things are:
Breathing, growth, locomotion, irritability and cell wall
Cell membrane, breathing, growth, feeding
Nucleus, irritability, reproduction and growth
Reproduction, breathing, growth excretion and irritability
(vi) Which of the following will be a sequence to follow in scientific procedure after experiment?
Observation and data recording
Hypothesis formation
Conclusion
Problem identification
(vii) In biology, an experiment is used to test a;
Law
Theory
Hypothesis
Problem
(viii) Interpretation means:
To make sense of information
Investigation
Evaluation
Guessing
(ix) What do you understand by the term hypothesis?
An intelligent guess
An opinion
A school of thought
An idea
(x) If you look at cell in frog, muscles, you will observe that these cells contain nuclei but lack cell wall. The statement that frog muscles contain nuclei but no cell wall is termed as:
A hypothesis
A conclusion
An assumption
None of the above
i
ii
iii
iv
v
vi
vii
viii
ix
x
2. Match the items below from list A with corresponding item from list B
LIST A
LIST B
Study of fungi, mushroom, and toad stool
A doctor locating the location of pineal gland.
The study of how the body functions
The study of housefly, mosquitoes, sand fly
Study of infectious diseases
Anthropology
Virology
Physiology
Parasitology
Mycology
Anatomy
Epidemiology
Morphology.
3. Write True for statements that are correct and False for statements that are not correct
Electric shock, fires, colds and burns can endanger our lives_______________
Drivers and passengers are more concerned with road signs but not students____________
Improper use of useful substances things such as vehicles, electricity and water bodies can endanger our lives_____________
Biting and stinging animals can cause harm to our bodies, yet they are very useful to man______________
All fires are flames as all flames are fires______________
In case of accident in laboratory, run faster to save your life……………….
Do not wear high heeled shoes in the laboratory……………………
A victim of snake bite should be given enough alcohol to relieve pain………….
Always follow teacher instructions while in the laboratory……………………….
All fires can be extinguished by use of water……………………
4. Fill in the spaces provided:
Scientific investigations being with___________________
We make observation using________________
In biology, we can measure the height of plant by using________________or_______________
A scientist can be able to accept or reject a hypothesis by doing________________
An experiment that is set to make comparison with the test experiment is called______________
SECTION B (60 MARKS)
5. a) What do you understand by the term experimentation?