General Science - Online Test
Q1. The hormone with enzymatic action which catalyses conversion of angiotensinogen into angiotensin is :
Answer : Option B
Explaination / Solution:
A fall in glomerular blood flow/glomerular blood pressure/GFR can activate the JG cells to release renin which converts angiotensinogen in blood to angiotensin I and further to angiotensin II.
Q2. The Carnot cycle consists of
Answer : Option C
Explaination / Solution:
The Carnot cycle consists of the following four processes:
- A reversible isothermal gas expansion process
- A reversible adiabatic gas expansion process
- A reversible isothermal gas compression process
- A reversible adiabatic gas compression process
Q3. The theory of use and disuse was given by
Answer : Option D
Explaination / Solution:
The theory of use and disuse was given by Lamarck. In his theory of organic evolution he stressed that those traits or organs are used more evolve faster and those are not used degenerate in course of time.
Q4. Viscous force is
Answer : Option A
Explaination / Solution:
Viscous force is directly proportional to area and velocity gradient.
Q5.
We know that the relationship between and is What would be the value of Δngas for the reaction
Answer : Option B
Explaination / Solution:
Q6. Which of the following is most soluble in water?
Answer : Option B
Explaination / Solution:
As they have polar interactions in water hence are soluble.
Q7. The vascular bundles are closed when they
Answer : Option B
Explaination / Solution:
In the monocotyledons, the vascular bundles have no cambium present in them. Hence, since they do not form secondary tissues they are referred to as closed.2
Q8. Natural cytokinins are synthesized in
Answer : Option A
Explaination / Solution:
Natural cytokinins are synthesised in regions where rapid cell division occurs, for example, root apices.
Q9. In a Geiger -Marsden experiment, what is the distance of closest approach d to the nucleus of a 7.7 MeV α−particle before it comes momentarily to rest and reverses its direction?
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. A living organism can be unexceptionally differentiated from nonliving structure on the basis of
Answer : Option A
Explaination / Solution:
A living organism can be differentiated from non-living structures on the basis of reproduction. All the living organism reproduce unexceptionally for continuation of species.
