Zoology - Online Test
Q1. Which one is not a sexually transmitted disease?
Answer : Option D
Explaination / Solution:
Diseases acquired during sexual intercourse are called sexually transmitted disease. Hepatitis-B is not transmitted through coitus.
Q2. Collagen is
Answer : Option C
Explaination / Solution:
In all connective tissues except blood, the cells secrete fibres of structural proteins called collagen or elastin.
Q3. In five kingdom of classification, prokaryotic, non-nucleated and unicellular organisms are included under
Answer : Option B
Explaination / Solution:
The fifth kingdom, Monera, contains all the single-celled organisms that do not possess a true nucleus. Members of the kingdom Monera are commonly referred to as bacteria.
Q4. The hormone secreted by pars intermedia of hypophysis is :
Answer : Option D
Explaination / Solution:
The hormone secreted by pars intemedia of hypophysis is melanocyte-stimulating hormones (MSH). MSH is a peptide hormone also knownas melanotropins.
Q5. Examples of artificial ecosystem is/are:
Answer : Option A
Explaination / Solution:
Artificial ecosystems are man-made ecosystem. Crop field and aquarium are examples of artificial ecosystem as they are man-made.
Q6. Brunner’s gland is
Answer : Option B
Explaination / Solution:
Brunner’s glands are submucosal mucin secreting glands localized predominantly in the duodenal bulb and proximal duodenum, decreasing progressively in size and number in the distal portions.
Sub-mucosal glands (Brunner’s glands) provide alkaline medium.
Q7. Alzheimer disease in humans is associated with the deficiency of
Answer : Option D
Explaination / Solution:
Alzheimer disease is a neurological disorder in which the death of brain cells causes memory loss and cognitive decline. It is caused in human due to deficiency of acetylcholine.
Q8. Hypothalamus helps to maintain homeostasis by controlling hunger, thirst, blood pressure, temperature feelings etc. So it is an important link between
Answer : Option D
Explaination / Solution:
One of the most important functions of the hypothalamus is to link the nervous system to the endocrine system via the pituitary gland (hypophysis). The hypothalamus is located below the thalamus and is part of the limbic system
Q9. Select the incorrect matching
Answer : Option C
Explaination / Solution:
Mitochondria contain cristae, finger like projection of inner layer, thylakoid is present in chloroplast and lysosome is a digestive enzyme but RNA is absent in Chromosome.
Q10. There is no DNA in
Answer : Option D
Explaination / Solution:
Because of the lack of nuclei and organelles, mature red blood cells do not contain DNA and cannot synthesize any RNA, and consequently cannot divide and have limited repair capabilities. The inability to carry out protein synthesis means that no virus can evolve to target mammalian red blood cells.
