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WorksheetsONLINE TEST F3 SCIENCE MIDTERM EXAM
Total questions: 50
Worksheet time: 48mins
The following are two types of involuntary action.
What is an example for P?
A. Saliva secretion
B. Heartbeat
C. Kick a ball
D. Withdrawing hand when pierced with thorn
Why Aminah who is having cold unable to detect the smell of food that her mother cooks?
A. Most smell sensory cells have died
B. Most brain nerves cannot function.
C. The mucuous layer becomes dry which inhibits stimulation of receptor in the nasal cavity.
D. Excessive mucus is produced which inhibits stimulation of receptor in the nasal cavity
Diagram below shows the structure of human ear.
What is the function of Q.
A. detects & converts sound vibration to nerve impulses
B. helps to control body balance
C. send impulses to the brain
D. strengthens sound vibration
Diagram below shows plant Z.
What is the function of nastic movement in plant Z?
A. to catch prey
B. as a defence from the enemy
C. to get plenty of water
D. Gain support to grow vertically
The following shows information about disease X.
-see some of the objects more clearly than others
-can be correctly with cylindrical lenses
What is disease X?
A. Colour blind
B. Short-sightedness
C. Long-sightedness
D. Astigmatisme
Which of the following animal has monocular vision?
I. Parrot
II. Owl
III. Monkey
IV. Rabbit
A. I and II
B. III and IV
C. II and III
D. I and IV
A morning glory flower blooms when there is sunlight.
A sunflower blooms in the direction of sunlight.
Name the types of nastic movements involved.
A. photonastic
B. Seismonatic
C. Thermonastic
D. ALL the ABOVE
E. I don't know
Mimosa pudica plant quickly fold its leaves when it is touched. State the type of nastic movement involved.
(a)
This kind of plant will bloom at South Korea, Japan, & Turkey at the end of the spring season.
This flower is a national flower of Holland.
State the name of this plant.
(a)
This first tropism found by Charles Darwin and his son in year 1880. The conducted an experiment by using grass.
State the type of tropism involved?
geotropism
phototropism
hydrotropism
thigmotropism
Viper has an special organ at the centre of the palate to detect heat and is highly sensitive to smell. This organ also helps to snake to detect and hunt its prey.
State the name of this organ.
(a)
This a very beautiful ornamental fish. It has a sparking body radiates light. This fish has a modified muscle in the tail. How the fish protect itself from the predator?
(a)
Cockchafer beetle secretes a kind of chemical and left behind in the path of their movement.
This kind of chemical will attract male beetle for mating purposes.
(a)
State the name of this component which enable fish to detect the water flow in their surroundings. The component allows the fish to detect prey and avoid predators in their habitats.
(a)
South African hedgehog has smaller ears but the hearing of these animals is quite sharp.
Suggest how this animal protect itself from predator when confronted with threats if predator attack them.
(a)
State the name of the device used by doctor to measure a patient's blood pressure?
(a)
Which of the following animal has similar blood circulatory system as human?
I. Salamander
II. Ostrich
III. Whale
IV. Turtle
A. I and II
B. III and IV
C. II and III
D. I and IV
A condition in which the structure of the alveoli is broken down/ burst due to cough.
This reduces the surface area for gas exchange.
The patient cannot take in sufficient oxygen & becomes very short breath. What is the name of this disease?
A. asthma
B. lung cancer
C. emphysema
D. bronchitis
This chemical substances causes addiction to smoker and might cause palpitation, increase blood pressure and rapid breathing. This substance may lead to stroke if consumed in large quantity. State the name of the chemical substance.
(a)
Gas exchange take place in the lung by process X.
This process X is the movement of substances from a high concentration area to low concentration area.
State the name of process X.
(a)
State the respiratory structure for gas exchange of fish in water.
(a)
Air enters the trachea of insects such as grasshopper through the respiratory pore. State the name of the structure.
(a)
At high altitudes, atmospheric pressure is __________.
low
high
constant
On the lower surface of leaves, they are tiny pore. This tiny pores allow the gas to diffuse in and to of the leaves.
Name this structure (this tiny pores).
(a)
Which of the following steps may reduce the impact of pollutions on plants?
law enforcement such as jail sentence of fine
awareness campaigns through mass media
cleaning campaign around housing areas
formal education in educational instution.
all the above steps
Why complex organisms need a transport system?
State the average lifespan of erythrocytes?
(a)
Tick the correct facts related to white blood cells?
white blood cells also known as lymphocytes
produced in the lymph node
has fixed shape
concentration of white blood cells increases if somebody fever
Tick the correct fact about platelets.
help is blood clotting process
has irregular shape
produced in bone marrow
pale yellowish fluid
States the name of hormone found in human blood which control the level of sugar?
(a)
If antibody attacks the antigen that is incompatible with it and causes blood (a) that can lead to death.
The following diagram shows the process X that occurs on the leaves of plants. This process occurs at night or when humidity is high. This process involves the loss of water in the form of liquid.
guttation
transpiration
evaporation
Which is the best method to obtain potassium, sodium, calcium, magnesium & aluminium from its ore?
exists in the form of element in the Earth's crus (via purification)
metal extraction is done through direct heating of metal compound.
extraction through reduction of metal oxide by carbon
extraction through electrolysis of metal compound in molten state.
Which is the best method to obtain zinc, iron, tin & lead (plumbum) from its ore?
extraction through electrolysis
extraction through reduction of metal oxide by carbon
metal extraction is done through direct heating of metal compound.
through purification (exists in the form of element in the Earth's crust)
Which is the best method to obtain copper & mercury?
extraction through electrolysis
extraction through reduction of metal oxide by carbon
metal extraction is done through direct heating of metal compound.
through purification (exists in the form of element in the Earth's crust)
Which is the best method to obtain silver & gold (aurum)?
extraction through electrolysis
extraction through reduction of metal oxide by carbon
metal extraction is done through direct heating of metal compound.
through purification (exists in the form of element in the Earth's crust)
Which of the following pair is CORRECT?
cassiterite : silicon & oxygen
hematite : iron & sulphur
pyrite : iron & silicon
bauxite : aluminum & oxygen
Which of the following metal oxide can be reduced by hydrogen?
aluminium oxide
magnesium oxide
ferum (III) oxide
zinc oxide
Z is a non-metallic material produced during iron extraction in the blast furnace. What is the use of Z?
A. Build building site & road
B. make electrical wires
C. Manufacturing of cement
D. make jewellery
How does bauxite mining close to the road bring harm to drivers?
Vision become limited & the road becomes slippery
noise from the mining machinery disrupts driver's focus
Road congestion happens
can cause tire puncture
Photosynthesis is an (a) process.
Most minerals are insoluble in water. What is the advantage of this characteristics?
to ease the mining process of the mineral
to allow the mineral to stay exists in the Earth
to maintain the quality of the mineral
to maintain the hardness property of the mineral
What non-metal elements that are listed in the reactivity series of metals?
oxygen & carbon
carbon & nitrogen
hydrogen & oxygen
carbon & hydrogen
Blast furnace used in the heating of the mixture of ore & carbon extraction method. What is the function of the blast furnace?
to heat the mixture of iron ore, charcoal and lime stone
to separate the metal from its ore
to heat the extracted metal until melt
to cool & freeze the extraction product
Which reaction explains about exothermic reaction?
heat is absorbed from the surroundings
surrounding temperature increases
heat energy is changed to chemical energy
thermometer reading decreases
Which process does not involve the release of heat energy?
the combustion of petrol
the formation of ice
volcanic eruption
melting of butter
Sublimation process that occurs on dry ice.
This process is endothermic. WHY?
new substances is formed
there is a conversion of energy
dry ice absorbs heat from the surroundings
the water vapour formed is very cold
Which reaction explains about the exothermic reaction?
heat is absorbed from the surroundings
surrounding temperature increases
heat energy is changed to chemical energy
thermometer reading decreases
Cellular respiration is an exothermic reaction. Which of the following explains about the process?
release heat to the environment
the chemical bond in glucose is broken down
heat energy is changed to chemical energy
forming water as by-product (hasil sampingan)
Who is the founder of Zoom, a video communications tool that went public in April 2019?
Subrah Lyra
Mark Zuckerberg
Eric Yuan
Bill Gates
