Zoology - Online Test
Q1.
Match the following bones and their synonyms :
column A
a) Hipbone
b) Kneebone
c) Collarbone
d) immovable joint
column B
i) patella
ii) clavicle
iii) suture
iv) innominate
Answer : Option B
Explaination / Solution:
Hip bone is called as innominate bone, kneebone is called as patella, collarbone is called as clavicle and immovable joint is called suture.
Q2. Rosie’s milk is enriched nutritionally as it has
Answer : Option D
Explaination / Solution:
The first transgenic cow Rosie produced human protein enriched milk. The milk contained Alpha lactalbumin which was nutrionally more balanced than normal cow milk for babies.
Q3. In a population, unrestricted reproductive capacity is called as
Answer : Option A
Explaination / Solution:
Unrestricted reproductive capacity of a population is called biotic potential. Having coitus with opposite partners may leads to pregnancy and cause a number of problems to individual as well as society.
Q4. Nasal septum contains
Answer : Option A
Explaination / Solution:
The nasal septum of human beings consist of hyaline cartilage which is highly elastic having collagen. It contains no nerves or blood vessels and is pearly bluish in colour.
Q5. Diatoms do not decay easily because
Answer : Option D
Explaination / Solution:
The walls of the diatoms are embedded with silica and thus the walls are indestructible.
Q6. Phytophagous insects will be categorized as
Answer : Option B
Explaination / Solution:
The insect that feeds on plant sap and other parts of plants are called phytophagous. Phytophagous insects will be similar to predators and plants acts as prey.
Q7. Which of the following is not secreted from its source in the form of a Zymogen :
Answer : Option D
Explaination / Solution:
Zymogen is an inactive enzyme precursor that require biochemical change to become active. Amylase enzyme is not released from its source in the form of proenzyme or zymogen.
Q8. Choose the wrong statement regarding AIDS
Answer : Option D
Explaination / Solution:
AIDS is caused by human immune virus (HIV). HIV infects and kills B-lymphocytes. In this disease viral RNA genome is converted into DNA copy by reverse transcriptase.
Q9. Human internal ear is :
Answer : Option A
Explaination / Solution:
Human body is triploblastic in nature, ectoderm, mesoderm and endoderm. These three layers of embryo forms the different organs of human beings. Human internal ear is ectodermal in origin.
Q10. Lysosomes are rich in hydrolytic enzymes such as
Answer : Option A
Explaination / Solution:
Lysosomes are found to be very rich in almost all types of hydrolytic enzymes (hydrolases – lipases, proteases, carbohydrases) optimally active at the acidic pH. These enzymes are capable of digesting carbohydrates, proteins, lipids and nucleic acids.
