Biology - Online Test
Q1. Read the following about the surface of cerebral hemispheres
i. Is made up of the pia matter.
ii. Is greatly convoluted and called the cerebral cortex.
i. Is made up of the pia matter.
ii. Is greatly convoluted and called the cerebral cortex.
Answer : Option A
Explaination / Solution:
The layer of cells which covers the cerebral hemisphere is called cerebral cortex and is thrown into prominent folds.
Q2. Rhodophyta are commonly called red algae because of the predominance of pigment
Answer : Option A
Explaination / Solution:
The algal class Rhodophyta are commonly called as red algae because it contain red pigment, r-phycoerythrin along with chlorophyll a and d.
Q3. The membrane complex formed in folding of plasma membrane in prokaryotic cells is called
Answer : Option D
Explaination / Solution:
A special membranous structure is the mesosome which is formed by the extensions of plasma membrane into the cell.
Q4. Which statement is not correct about the DNA?
Answer : Option B
Explaination / Solution:
DNA content is halved during meiosis cell division and not during mitosis cell division. Chromosome is made of DNA protein and same amount of DNA is present in all cells of an individual.
Q5. Correct sequence for decomposition process is:
Answer : Option B
Explaination / Solution:
Decomposition process involves fragmentation, leaching, catabolism and mineralization in sequence. Decomposition is essential form nutrient cycles in the ecosystem.
Q6. Melvin Calvin use of radioactive in
Answer : Option D
Explaination / Solution:
The use of radioactive C-14 by him in algal photosynthesis studies led to the discovery that the first fixation product was a 3-carbon organic acid.
Q7. If TLC is 5500ml, IRV is 2950ml, ERV is 900ml and TV is 500ml then what will be value of RV ?
Answer : Option B
Explaination / Solution:
RV = TLC - IRV – ERV– TV.
substitute the values
RV = 5500-2950-900-500= 1150ml.
Q8. Cutting of anthers from the bisexual flowers of female parents is called
Answer : Option B
Explaination / Solution:
Emasculation is the technique of removing anther from bisexual flower to prevent self-pollination. The stigma is further covered with butter paper to prevent air born pollination.
Q9. Match the following:
national park
a) Shiv Puri National Park
b) Hazaribagh National Park
c) Simlipal National Park
d) Nokrek National Park
state
i) Meghalaya
ii) Orissa
iii) Jharkhand
iv) Madhya Pradesh
national park
a) Shiv Puri National Park
b) Hazaribagh National Park
c) Simlipal National Park
d) Nokrek National Park
state
i) Meghalaya
ii) Orissa
iii) Jharkhand
iv) Madhya Pradesh
Answer : Option B
Explaination / Solution:
Explanation:
- Madhav National Park is situated in Shivpuri District of Gwalior region in northwest Madhya Pradesh, India. It was named after Madho Rao Scindia, the Maharaja of Gwalior belonging to the Scindia dynasty of the Marathas.
- Hazaribagh National Park, located 19 km from Hazaribagh, Jharkhand, India and about 135 km from Ranchi is a national park and also a wildlife sanctuary. The park has tigers, panthers, sambhars, spotted deer, bisons and a number of mammalian faunas.
- Simlipal National Park is a national park and a tiger reserve in the Mayurbhanj district in the Indian state of Odisha.
- Nokrek National Park, or Nokrek Biosphere Reserve, is a national park located approximately 2 km from Tura Peak in West Garo Hills district of Meghalaya, India. UNESCO added this National park to its list of Biosphere Reserves in May 2009.
Q10. Book lungs are respiratory organ of
Answer : Option A
Explaination / Solution:
Book lung is a type of respiratory organ used for atmospheric gas exchange that is found in Arachnida such as scorpions and spiders.
