Zoology - Online Test
Q1. Towards the centre of the inner concave surface of the kidney is a notch called:
Answer : Option D
Explaination / Solution:
On the medial margin of the kidney is concave region called the renal hilum. The renal hilum is the entrance to the renal sinus. Structures such as the renal veins, artery, nerves and lymphatic vessels are located in the renal hilum.
Q2. Organic compounds first evolved in earth required for origin of life were
Answer : Option C
Explaination / Solution:
The organic compounds first evolved in earth required for origin of life were proteins and nucleic acids. Proteins are made of amino acids arranged in different order and DNA and RNA are nucleic acids.
Q3. Hierarchical classification refers to
Answer : Option C
Explaination / Solution:
Classification is not a single step process but involves hierarchy of steps in which each step represents a rank or category. Hence, the correct option is To rank one above the other.
Q4. Look at the following figure of movement of the thin filaments
The label x, y, and z are respectively
The label x, y, and z are respectively
Answer : Option A
Explaination / Solution:
The label x is H-zone, y is I band and z is A band.
Q5. The correct result of ATPase activity that occurs during muscle contraction is :
Answer : Option A
Explaination / Solution:
ATPase enzyme acts on myosin to act on ATP to convert into ADP. The activated myosin combine with actin for contraction.
Q6. First gene therapy was done for
Answer : Option A
Explaination / Solution:
A four-year old girl became the first gene therapy patient on September 14, 1990 at the NIH Clinical Center. She has adenosine deaminase (ADA) deficiency, a genetic disease which leaves her defenseless against infections.
Q7. Sexually transmitted disease can be transmitted through sharing of injection or from mother to foetus is
Answer : Option A
Explaination / Solution:
AIDS can be transmitted from infected partner to healthy partner during sexual intercourse. Beside this this syndrome can be transmitted from infected mother to their child and through sharing of injection and blood transfusion.
Q8. Identify the figure given below:
Answer : Option C
Explaination / Solution:
The figure is identified as salivary gland. It is multicellular and is lined with glandular epithelium cells. These types of cells are specialized in production and release of particular kind of digestive juices or sweat or oil. Salivary gland secretes alkaline fluid called saliva.
Q9. First phylogenetic system of classification was given by
Answer : Option C
Explaination / Solution:
First phylogenetic system of classification was given by Engler and Prantl which was based on evolutionary relationship of the organisms. Those evolved earlier are classified first and newly evolved later on.
Q10. Hormone which acts on hypothalamus to decrease food intake, stimulate satiety and increase energy output is :
Answer : Option D
Explaination / Solution:
Leptin hormone acts on hypothalamus to decrease food intake, stimulate satiety and increase energy output. Leptin hormone is made by adipose cells.
