Everyday Science Test 09

Total Questions: 18

1 - Enzymes lower the ______ energy of a chemical reaction.
A ) Thermal
B ) Kinetic
C ) Activation ✅
D ) Potential

2 - In prokaryotic cells, the nuclear material is present in the:
A ) Mesosomes
B ) Mitochondria
C ) Cytoplasm ✅
D ) Nucleus

3 - - _______ is used as a raw material in the photosynthesis.
A ) Glucose
B ) H2O ✅
C ) O2
D ) N2

4 - - Depletion of ozone takes place through:
A ) Redical and ionic reaction
B ) Ionic reaction
C ) Without intermediate
D ) Redical reaction ✅

5 - The size of heart is nearly the size of our:
A ) Head
B ) Hand
C ) Wrist
D ) Fist ✅

6 - Yellowish fluid in blood is called _______

A ) White blood cells
B ) Red blood cells
C ) Plasma ✅
D ) Platelets

7 - The air pollution turns rain water
A ) Alkaline
B ) Base
C ) Acidic ✅
D ) Mineral water

8 - Plants use water to make _______ .
A ) Leaves
B ) Oxygen
C ) Food ✅
D ) Roots

9 - Which part of atom has a lot of energy?
A ) Neutron
B ) Electron
C ) Nucleus ✅
D ) Protron

10 - The removal of carbon dioxide, urine and sweat is a process of ________ .
A ) Respiration ✅
B ) Digestion
C ) Breathing
D ) Excretion

11 - The color of the blood is red due to the presence of :
A ) Hemoglobin ✅
B ) Carbon dioxide
C ) Plasma
D ) Fats

12 - The first antibiotic was prepared from:
A ) Fungi ✅
B ) Bacteria
C ) Virus
D ) Vertebrates

13 - The DNA content of a mammalian cell is about _______ % of total cell weight.
A ) 0.15
B ) 0.25 ✅
C ) 0.35
D ) 0.55

14 - All living and non-living make :
A ) Habitats ✅
B ) Population
C ) Community
D ) Environment

15 - Vertebrates are further divided into _____ classes.
A ) Three
B ) Five ✅
C ) Six
D ) Four

16 - - Which one of the following is the cause of tuberculosis?
A ) Fungi
B ) Bacteria ✅
C ) Virus
D ) Protozoa

17 - Posterior part of embryo that gives rise to root system of young plant is :
A ) Radical ✅
B ) Testa
C ) Epicotyl
D ) Endosperm

18 - As compared to Amphibians, Reptiles have :
A ) Modifies forelimbs
B ) Rough and Scaly skin ✅
C ) Strong and steeper bones
D ) Modifies back limbs
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