The Living World — BIOLOGY STD 11 Science — Question

A particular plant tissue is responsible for a particular task. It is similar to which of the following? How does specialization help in making our work easy?

1. A particular teacher is responsible for teaching a particular subject in school.
2. A particular student is good at a certain subject only.
3. Some students are good at many subjects.

If one debarks a tree, what parts of the plant is being removed?

Write the names of the products formed on incomplete oxidation of glucose molecule and write any four importance of respiration.

What is the difference between direct and indirect development?

What is the most common liverwort? Draw itswell-labelled diagram. What is the nature of itsthallus?

Describe the modification of stem in:

1. Chrysanthemum.
2. Eichhornia.
3. Jasmine.

What is cardiac cycle? Write the difference between right ventricle and left ventricle.

What are the effects of hypothyroidism (observed during pregnancy) on the development and maturation of a growing baby?

Fungi are cosmopolitan. Write the role of fungi in your daily life.

During a college tour, while travelling at a higher altitude of maintains, Vijay complains of dizziness and vomiting sensation. The guide took him to the doctor. The doctor after diagnosing him gave some medicines and explained that it happened due to the change in air pressure, as we go towards the higher altitude.

1. What is the cause of Vijay's sickness?
2. Which of the sensory organ get disturbed during the journey?
3. Name the part of the ear that maintains the air pressure.
4. What values did the guide possess?