General Science - Online Test
Q1. Entry of ions into cells is called
Answer : Option D
Explaination / Solution:
Entry of ions into cells is called influx. Influx takes place actively against the concentration gradient by utilization of energy through plasmodesmata of plant cells.
Q2. Every cell contains DNA and when we consume plant /animal material , the DNA which reaches our digestive tract is digested by :
Answer : Option C
Explaination / Solution:
Food material consists of plant or animal cells. Each cell contain DNA in their nucleus. Digestion of DNA takes place in small intestine by the action of enzyme succus entricus.
Q3. The largest telescope in the world has a reflector with an aperture of 200 inches in order to achieve
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. A Production Possibility Frontier shifts rightward if
Answer : Option C
Explaination / Solution:
The most common reason a PPF would shift is because of a change in technology, or because of economic growth.
Q5. Cirrhosis of liver is caused by the chronic intake of
Answer : Option B
Explaination / Solution:
Cirrhosis of liver is caused by the chronic intake of alcohol. Regular consumption of alcohol damages the liver cells. Cirrhosis of liver is a serious condition when normal liver tissue is replaced by scar tissue.
Q6. The formula E= hνis used to calculate
Answer : Option C
Explaination / Solution:
Max Planck theorized that energy was transferred in chunks known as quanta, equal to . The variable h is a constant equal to 6.63 × 10-34 J·s and the variable represents the frequency in 1/s.
This equation allows us to calculate the energy of photons, given their frequency.
If the wavelength is given, the energy can be determined by first using the wave equationto find the frequency, then using Planck’s equation to calculate energy.
Q7. Gustatoreceptors are responsible for the sense of :
Answer : Option C
Explaination / Solution:
Gustatoreceptors are responsible for the sense of taste. Gustatory receptors are located inside taste buds on the tongue.
Q8. AFC curve never touches ‘x’ axis though it lies very close to x axis because
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. Molar Specific Heat capacity has units of
Answer : Option B
Explaination / Solution:
Q=nCΔTC=QnΔT
Q10. Acid rain does not cause :
Answer : Option D
Explaination / Solution:
Acid rain does not cause Global warming as it does not release any greenhouse gas in the atmosphere.
