HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Biology

Explain the term Ligamentum arteriosum.

Explain the term Chordae tendinae.

Enlist the names and locations of valves of human heart giving function of each.

Name the microbial sources of any two enzymes.

Name the microbial sources of any two vitamins.

A man's heart rate is 68 and cardiac output is 5440. Find the stroke volume.

What are A, B and C in the table given below?

What is the role of Paplillary muscles?

What is the role of Heart valves in human heart?

Give the name of microbial source of antibiotic chloromycetin.

Give a graphic representation of cyclic photophosphorylation.

Explain the role of microbes in sewage treatment.

Explain the process of sewage water treatment before it can be discharged into natural water bodies.

Why Chl-a (Chlorophyll-a) is Called Essential Pigment?

What is primary treatment of sewage?

Pheromones are chemical messengers produced by animals and released outside the body. The odour of these substance affects _____________.

Multiple choice question.

Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

What is allosome?

Compare X chromosome and Y chromosome.

Removal of large pieces of floating debris, oily substances, etc. during sewage treatment is called _______________.