Tissues — Science STD 9 — Question

Seat of photosynthesis is:

Contractile proteins are found in:

Congenital diseases are those which:

1. Are deficiency diseases.
2. Are present from time of birth.
3. Are spread from man to man.
4. Occur during life time.

Intercellular connections in plant cells are called:

1. Middle lamella.
2. Microfirils.
3. Matrix.
4. Plasmodesmata.

Cells regulate their activity through:

Which of the following muscles are involuntary?

Which taxonomic term may be substituted for any rank in the classification?

1. Class.
2. Genus.
3. Species.
4. Taxon.

The hardness of the bone tissue is due to the phosphates and carbonates of:

1. Calcium and sodium.
2. Calcium and magnesium.
3. Magnesium and sodium.
4. Magnesium and potassium.

Which of the following are Indian cattle?

1. Bos indicus.
2. Bos domestica.
3. Bos bubalis.
4. Bos vulgaris.

1. (i) and (iii)
2. (i) and (ii)
3. (ii) and (iii)
4. (iii) and (iv)

Which of the following statements given below is correct about meristematic tissue?

1. Is made of cells that are incapable of cell division.
2. Is made of cells that are capable of cell division.
3. Is composed of single type of cells.
4. Is composed of more than one type of cell.