Biology - Online Test
Q1. Proteins can be digested by
Answer : Option C
Explaination / Solution:
Proteases are involved in digesting long protein chains into shorter fragments by splitting the peptide bonds that link amino acid residues.
Protein can be digested by using enzyme protease to obtain DNA. In chromosome DNA is wrapped on histone protein.
Q2. pH of urine under healthy conditions is :
Answer : Option C
Explaination / Solution:
The pH of urine under healthy conditions is slightly less than 7 so, slightly acidic in nature.
Q3. Which of the following are not the examples of analogous structures?
Answer : Option C
Explaination / Solution:
Analogous structure is that structure which performs similar function in spite of different origin. Wings of bat and forelimb of cattle do not perform same function and have common origin.
Q4. Epidermal appendages, unicellular or multicellular outgrowth strictly epidermal in origin is
Answer : Option C
Explaination / Solution:
Trichomes are epidermal appendages, unicellular or multicellular outgrowth strictly epidermal in origin present on the stem of plants.
Q5. Higher plants possess specific areas which take part in the formation of new cells. These area are called
Answer : Option C
Explaination / Solution:
The tissues that have ability of cell division located in specific area are called meristem. They are located at stem and root tips, nodes of stem and intercalary region.
Q6. Which is not the universal rule of nomenclature?
Answer : Option D
Explaination / Solution:
According to the universal rule of nomenclature, the biological names are generally in Latin and written in italics. Hence, the correct option is Biological names are generally in Greek.
Q7.
Identify the figure given below:-
Answer : Option A
Explaination / Solution:
Rhizome of ginger is modified root, located inside the soil parallel to earth surface. Vegetative propagation of ginger is done with it.
Q8. Insulin is _____ hormone
Answer : Option C
Explaination / Solution:
Insulin is anabolic hormone because this hormone helps in conversion of glucose into glycogen.
Q9.
From the following figure infer :
(a) = ?, (b) = ? and (c) = ?
Answer : Option A
Explaination / Solution:
Myograms is diagnostic test of health and functionality of a person’s muscle. In the given myograms,
a. shows staircase effect,
b. shows summation and
c. shows tetanus that leads to fatigue.
Q10. The American company which is involved in the manufacturing of Humulin is
Answer : Option C
Explaination / Solution:
In 1983, Eli Lilly an American company, first prepared two DNA sequences corresponding to A and В chains of human insulin and introduced them in plasmids of Escherichia coli to produce insulin chains. Chains A and В were produced separately, extracted and combined by creating disulfide bonds to form human insulin (humulin).
