Improvement in Food Resources — Science STD 9 — Question

Which out of the following is not a function of vacuole?

Weeds affect the crop plants by:

1. Killing of plants in field before they grow.
2. Dominating the plants to grow.
3. Competing for various resources of crops (plants) causing low availability of nutrients.
4. All the above.

The eukaryotic kingdom Protista was created by:

1. Whittaker.
2. Woese.
3. Margulis and Schwartz.
4. Haeckel.

Protein storing plastid is:

1. Aleuroplast
2. Amyloplast
3. Elaioplast
4. Both b and c

Which one of the following tissue gives mechanical support to young dicotyledonous stem?

1. Parenchyma.
2. Collenchyma.
3. Sclerenchyma.
4. Chlorenchyma.

Which of the following muscles are involuntary?

The term mitosis was given by:

Which of the following components of phloem is absent in monocot stem:

1. Sieve tubes.
2. Companion cells.
3. Bast fibers.
4. Phloem parenchyma.

Which type of tissue forms the inner lining of a blood vessel?

_________ is used as a colouring agent to colour the slide which is to be observed under the microscope.