General Science - Online Test
Q1. Shear modulus or modulus of rigidity is
Answer : Option A
Explaination / Solution:
No Explaination.
Q2. The nuclease will act on
Answer : Option C
Explaination / Solution:
A nuclease (also archaically known as nucleodepolymerase or polynucleotidase) is an enzyme capable of cleaving the phosphodiester bonds between monomers of nucleic acids. Nucleases variously effect single and double stranded breaks in their target molecules.
There are two primary classifications based on the locus of activity. Exonucleases digest nucleic acids from the ends. Endonucleases act on regions in the middle of target molecules. They are further subcategorized as deoxyribonucleases and ribonucleases. The former acts on DNA, the latter on RNA.
Q3. The epithelial cells of Bowman’s capsule are called:
Answer : Option A
Explaination / Solution:
Podocytes are cells in the Bowman's capsule in the kidneys that wrap around capillaries of the glomerulus. The Bowman's capsule filters the blood, retaining large molecules such as proteins while smaller molecules such as water, salts, and sugars are filtered as the first step in the formation of urine.
Q4. The efficiency (η) of a heat engine is defined by (W is the output and Q1 the heat input)
Answer : Option B
Explaination / Solution:
η=WorkDoneHeatInput=WQ1=Q1−Q2Q1
Q5. The sequence of origin of life may be considered as
Answer : Option A
Explaination / Solution:
The sequence of origin of life may be as first formation of nucleic acid (DNA and RNA) followed by amino acids to form protein. Chlorophyll evolved in plants to become autotrophic from chemoheterotrophic.
Q6. Which is the correct form of van der Waals equation?
Answer : Option A
Explaination / Solution:
is vanderwall gas equation of real gases.
Q7. If the Kc is neither too small nor too large, one of the following will happen
Answer : Option C
Explaination / Solution:
Rxn is at equilibrium.
Q8. Amino acids are components of
Answer : Option D
Explaination / Solution:
Proteins are formed by combination of amino acids
Q9. Which epidermis of leaf contains more stomata?
Answer : Option A
Explaination / Solution:
Stomata is present more on the lower surface of leaf. The lower surface of leaf is called abaxial part of leaf that is away from direct sunlight to prevent excess of water loss.
Q10. In dicotyledonous plants, girth of stem and root increase due to
Answer : Option C
Explaination / Solution:
Secondary growth is the result of the activity of the two lateral meristems, the cork cambium and vascular cambium. Arising from lateral meristems, secondary growth increases the girth of the plant root or stem, rather than its length.
