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WorksheetsMIDDLE TEST SCIENCE GRADE VIII ICP
Total questions: 20
Worksheet time: 3600secs
Based on the cycle of photosynthesis and cellular respiration, one can say that the ultimate original source of energy for all living things on Earth is
glucose
the sun
water
carbon dioxide
The process whereby plants capture energy and make complex molecules or food is known as
diffusion
photosynthesis.
evolution.
development.
As a result of photosynthesis,....
our atmosphere is now rich in
oxygen gas.
animals can get energy directly
from the sun.
plants convert chlorophyll into
water
abundant quantities of carbon
dioxide are produced
The organelles in plant cells that contain a green pigment and are associated with photosynthesis are the:
mitochondria.
chloroplasts
vacuoles
Golgi apparatus.
The primary function of roots is
to absorb sunlight
to transport food up the stem.
the absorption of water and
minerals.
water storage.
Photosynthesis enables plants to produce most of the glucose that they need. What is not required for photosynthesis to take place?
carbon dioxide.
light.
water.
oxygen
Two activators must be present in order for photosynthesis to take place in green plants. The activators are:
chlorophyll and sunlight
water and oxygen
sunlight and oxygen
chlorophyll and sodium
The two main reactants of photosynthesis are:
water and oxygen
water and carbon dioxide
chlorophyll and oxygen
glucose and carbon dioxide
Organs associated with photosynthesis are:
chloroplast
green leaves
chlorophyll
kidneys
What structure transports water through the stem of the plant?
guard cell
phloem
stomata
xylem
Xylem serves to transport ....
photosynthetic foods
oxygen
carbon dioxide
mineral water and salt
Which of the following is an accessory organ of digestion?
esophagus
colon
pancreas
spleen
What is the digestive system?
The body's breathing system
The body's system of nerves
The body's food-processing system
The body's blood-transporting system
Which of the following is NOT a digestive function?
filtration
absorption
mechanical processing
ingestion
The __________ teeth are used for crushing or grinding food.
incisors
molars
bicuspids
canines
There are ________ primary teeth and __________ permanent teeth
20, 32
32,20
30, 20
20, 30
Food substances that function as energy sources are ....
protein and vitamins
fat and protein
carbohydrates and fats
vitamins and minerals
Mechanical and chemical digestion of food occurs in ...
duodenum
mouth
esophagus
intestine
correct digestive tract of humans....
mouth, esophagus, stomach, small intestine, large intestine.
mouth, esophagus, stomach, large intestine, small intestine.
mouth, esophagus, large intestine, large intestine, stomach.
mouth, stomach, esophagus, small intestine and large intestine.
At the time of growth a child should get food that contains a lot of ....
carbohydrates
fat
protein
Mineral
