List of top Biology Questions

Match List I with List II:

List I		List II
A	Clostridium butylicum	I	Ethanol
B	Saccharomyces cerevisiae	II	Streptokinase
C	Trichoderma polysporum	III	Butyric acid
D	Streptococcus sp.	IV	Cyclosporin-A

Choose the correct answer from the options given below:

Select the correct statements regarding mechanism of muscle contraction.
A. It is initiated by a signal sent by CNS via sensory neuron.
B. Neurotransmitter generates action potential in the sarcolemma.
C. Increased Ca⁺⁺ level leads to the binding of calcium with troponin on action filaments.
D. Masking of active site for actin is activated.
E. Utilising the energy from ATP hydrolysis to form cross bridge.
Choose the most appropriate answer from the options given below:

Match List I with List II :

List - I		List – II
A.	B-Lymphocytes	i.	Passive immunity
B.	Interferons	ii.	Cell mediated immunity
C.	T-Lymphocytes	iii.	Produce an army of proteins in response to pathogens
D.	Colostrum	iv.	Innate immunity

Choose the correct answer from the options given below :

Match List I with List II :

List - I		List – II
A.	Squamous Epithelium	i.	Goblet cells of alimentary canal
B.	Ciliated Epithelium	ii.	Inner lining of pancreatic ducts
C.	Glandular Epithelium	iii.	Walls of blood vessels
D.	Compound Epithelium	iv.	Inner surface of Fallopian tubes

Choose the correct answer from the options given below :

0.16 seconds is a time interval for which event in the ECG system?

Who coined the term 'root pressure theory'?

Arrange the meninges in order from outer to inner:

Approximately how long is the DNA molecule in a single human cell if stretched out?

Which of the following is not present in RNA?

Given below are two statements: Statement I: Cell wall is freely permeable.
Statement II: Plasma membrane is selectively permeable.
Choose the correct answer from the options given below with reference to the structure of root hair:

A Thermal Cycler/Stabilizer is used for .........?

How many heartbeats does a person have in 1 minute on average?

The last electron acceptor in ETS (Electron Transport System) is:

Between which among the following, the relationship is not an example of common symbiosis?

Which scientists are credited with proposing the transpiration pull theory, also known as the cohesion-tension theory?

What is the role of heme in hemoglobin?

Total genetic content of an organism is called

How much ATP is produced by aerobic respiration?

In hydrosere succession, which stage comes just before the sedge meadow stage?

Which of the following processes is NOT part of cellular respiration?

The enzyme bromelain, found in pineapples, is primarily used for:

Which hormone is used to increase the size of fruit?

Who discovered DNA?

What are some archaeological sites where Neanderthal remains and artifacts have been discovered?