Which of the following plants is used to extract the blue dye?

1.  Trifolium

2.  Indigofera

3.  Lupin

4.  Cassia

 

Match the following columns.

Codes:

Among the terms listed below, those that are not technically correct names for a floral whorl are

(i) androecium     

(ii) carpel

(iii) corolla           

(iv) sepal

1. (i) and (iv)     

2. (iii) and (iv)       

3. (ii) and (iv)   

4. (i) and (ii)

In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is

1. calyx, corolla, androecium and gynoecium

2. calyx, corolla, gynoecium and androecium

3. gynoecium, androecium, corolla and calyx

4. androecium, gynoecium, corolla and calyx

The placenta is attached to the developing seed near the

1.  testa

2. hilum

3.  micropyle

4.  chalaza

Many pulses of daily use belong to one of the families below.

Endosperm, a product of double fertilisation in angiosperms is absent in the seeds of

Venation is a term used to describe the pattern of arrangement of

1. floral organs

2. flower in inflorescence

3. veins and veinlets in a lamina

4. all of them

Roots developed from parts of the plant other than radicles are called

1. tap roots

2. fibrous roots

3. adventitious roots

4. nodular roots

The mature seeds of plants such as gram and peas possess no endosperm, because

1.  these plants are not angiosperms

2.  there is no double fertilisation in them

3.  endosperm is not formed in them

4.  endosperm gets used up by the developing embryo during seed development