General Science - Online Test
Q1. The goi is able to multiply in the bacterial cell because of
Answer : Option A
Explaination / Solution:
The goi (gene of interest) is able to multiply in bacterial cell because of Ori (Origin of replication)in the plasmid of bacterial cell. Ori is a particular sequence in a genome at which replication is initiated.
Q2. Urinary bladder helps to :
Answer : Option C
Explaination / Solution:
The urinary bladder is a hollow elastic organ that functions as the body's urine storage tank. Urine produced by the kidneys flows through the ureters to the urinary bladder, where is it stored before passing into the urethra and exiting the body.
Q3. Internal energy of a system is
Answer : Option D
Explaination / Solution:
A state function describes the equilibrium state of a system. For example, internal energy, enthalpy, and entropy are state quantities because they describe quantitatively an equilibrium state of a thermodynamic system, irrespective of how the system arrived in that state.
Q4. Which one of the following is present today but was absent about 3.5 billion years ago?
Answer : Option B
Explaination / Solution:
Oxygen is present today in atmosphere but it was absent in atmosphere about 3.5 billion ago when origin of life begun on earth surface.
Q5. Heliocentric theory proposed by Nicolas Copernicus was
Answer : Option B
Explaination / Solution:
Copernican heliocentrism is the name given to the astronomical model developed by Nicolaus Copernicus and published in 1543. It positioned the Sun near the center of the Universe, motionless, with Earth and the other planets rotating around it in circular paths modified by epicycles and at uniform speeds.
This theory was replaced by Keplar. All planets move in elliptical orbits, with the sun at one focus. This is one of Kepler's laws. The elliptical shape of the orbit is a result of the inverse square force of gravity. The eccentricity of the ellipse is greatly exaggerated here.
Q6. Gases have much lower density than the solids and liquids because ?
Answer : Option D
Explaination / Solution:
In gases, molecules are far apart from each other, thermal energy which is a measure of freeness of motion is thus very high resulting in a very large volume for the same mass(compared to solid and liquid). Hence there density is lowest.
Q7. The mass of a gas dissolved in a given mass of a solvent at any temperature is proportional to the pressure of the gas above the solvent.
Answer : Option A
Explaination / Solution:
This equilibrium is governed by Henry’s law, which states that the mass of a gas dissolved in a given mass of a solvent at any temperature is proportional to the pressure of the gas above the solvent. This amount decreases with increase of temperature.
Q8. Conjoint type of vascular bundles are common in
Answer : Option C
Explaination / Solution:
In conjoint type of vascular bundles,the xylem and phloem are situated at the sameradius of vascular bundles. Such vascularbundles are common in stems and leaves. Theconjoint vascular bundles usually have thephloem located only on the outer side of xylem.
Q9. Which of the following events are arranged in correct order?
Answer : Option C
Explaination / Solution:
Growth, differentiation and development are very closely related events in the life of a plant. Broadly, development is considered as the sum of growth and differentiation.
Q10. The model that best explains the results of Geiger-Marsden experiment is
Answer : Option D
Explaination / Solution:
No Explaination.
