Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions

Name the body part modified for food storage in the following:

Colocasia ______.

Name the body part modified for food storage in the following:

Potato ______.

Name the body part modified for food storage in the following:

Turmeric ______.

Name the body part modified for food storage in the following:

Gladiolus ______.

Name the body part modified for food storage in the following:

Ginger ______.

Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.

Cucumber

Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.

Pumpkins

Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.

Grapevine

Tendrils are found in the following plants. Identify whether they are stem tendrils or leaf tendrils.

Watermelons

Tendrils of grapevines are homologous to the tendril of pumpkins but are analogous to that of pea. Justify the above statement.

Describe various stem modifications associated with food storage, climbing and protection.

Stolon, offset and rhizome are different forms of stem modifications. How can these modified forms of stem be distinguished from each other?

Seeds of some plants germinate immediately after shedding from the plants while in other plants they require a period of rest before germination. The later phenomena is called as dormancy. Give the reasons for seed dormancy and some methods to break it.

To which one of the following categories does adipose tissue belong?

Which one of the following is not a connective tissue?

Match the following and choose the correct option

Why are blood, bone and cartilage called connective tissue?

What is special about tissue present in the heart?

Write down the common features of the connective tissue. On the basis of structure and function, differentiate between bones and cartilages.

Briefly describe the cell theory.