Science (English Medium) Class 11 - CBSE Question Bank Solutions

What are the points for articulation of Pelvic and Pectoral girdles?

An elderly woman slipped in the bathroom and had severe pain in her lower back. After X-ray examination doctors told her it is due to a slipped disc. What does that mean? How does it affect our health?

Differentiate between Pectoral and Pelvic girdle.

Explain the basis for the different types of inflorescence in flowering plants.

Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.

Mention the ploidy of the following:

Zygote of a fern

Explain briefly the following term with a suitable example:

protonema

Explain briefly the following term with a suitable example:

Antheridium

Explain briefly the following term with a suitable example:

Archegonium

Explain briefly the following term with a suitable example:

Diplontic

Explain briefly the following term with a suitable example:

Sporophyll

Differentiate between the following:

Liverworts and Moss

What is a mesosome in a prokaryotic cell? Mention the functions that it performs.

Explain toxic elements with examples

What are the main steps in aerobic respiration? Where does it take place?

Define the term development.

Write the differences between:

Systole and Diastole

Define a cardiac cycle.

Define a cardiac output.

Explain the heart sounds.