General Science - Online Test
Q1. CAM is a special photosynthetic pathway found to be present as adaptation within:
Answer : Option C
Explaination / Solution:
Crassulacean acid metabolism photosynthesis pathway is present as adaptation in xerophytes in which stomata opens during night to prevents loss of water by transpiration.
Q2. The requirement of micro nutrient are always low if the concentration increases it leads to
Answer : Option D
Explaination / Solution:
The requirement of micronutrients is always in low amounts while their moderate decrease causes the deficiency symptoms and a moderate increase causes toxicity.
Q3. The part which is common passage for both digestive and respiratory tracts :
Answer : Option A
Explaination / Solution:
In humans the pharynx is part of the digestive system and also of the conducting zone of the respiratory system. The oesophagus and the trachea (wind pipe) open into the pharynx.
Q4. Refraction is
Answer : Option B
Explaination / Solution:
No Explaination.
Q5. The organism which causes pneumonia in human beings is
Answer : Option D
Explaination / Solution:
In human beings pneumonia is caused by bacterium Streptococcus pneumoniae that cause inflammation in lungs. This bacterium is atrichous as it lacks flagella of body surface.
Q6. The disease "Itai Itai" is caused by;
Answer : Option C
Explaination / Solution:
No Explaination.
Q7.
Match the following :
| Column A | Column B |
| a) Unipolar nerves | i) Nerve cells of retina |
| b) Mixed nerves | ii) Nerve cells of cerebral cortex |
| c) bipolar nerves | iii) Nerves of embryonic stage |
| d) Multipolar nerves | iv) All the spinal nerves |
Answer : Option A
Explaination / Solution:
Unipolar nerves are present in nerves of embryonic stage. Mixed nerves are found in all the spinal nerves. Bipolar nerves are present in nerve cells of retina. Multipolarnerves are present in nerve cells of cerebral cortex.
Q8. If P is the pressure, μ is the number of moles in the sample, T the temperature and V the volume of gas, ideal-gas equation is
Answer : Option A
Explaination / Solution:
V∝NTPPVNT=kN=μNAPVμT=NAk=RPV=μRT
Q9. How is TPP derived from MPP
Answer : Option A
Explaination / Solution:
No Explaination.
Q10. Stratosphere is a region of the atmosphere which contains :
Answer : Option C
Explaination / Solution:
Stratosphere, which is the second layer of atmosphere, contains ozone layer that absorbs UV-radiation from sun's rays.
