Racemose Inflorescence

Q. _______ are arranged in an acropetal order.

1. Only leaves in racemose inflorescence
2. Flowers in all types of inflorescence
3. Flowers in cymose inflorescence
4. Leaves and flowers in racemose inflorescence

Q. In racemose inflorescence

1. the peduncle terminates into a flower
2. the old, mature flower is at the top of the main axis
3. the flowers are arranged in a basipetal order
4. the growth of peduncle is indefinite

Q. Which among the following statements are correct?
A. Compared to many other organisms, bacteria as a group show the most extensive metabolic diversity.
B. Mycoplasma die in the absence of oxygen.
C. Cyanobacteria often form blooms in polluted water bodies.
D. No pathogenic mycoplasmas have been found so far.

Q.

The mitocytes, meiocytes and meiospores present in the anther respectively are

1. Pollen tetrads, sporogenous cells, microspores

2. Sporogenous cells, pollen mother cells, pollen grains

3. Microspores, pollen grains, sporogenous cells

4. Microspore mother cell, microspores, pollen grains

Q. According to Whittaker's classification, prokaryotes are placed in kingdom:

Q. Select the correct option.
Statement 1: Kingdom Monera includes unicellular prokaryotic organisms.
Statement 2: Organisms in kingdom Monera are only heterotrophs.

1. Only statement 1 is correct.
2. Both the statements are correct.
3. Both the statements are incorrect.
4. Only statement 2 is correct.

Q. is a type of arrangement of xylem where the protoxylem lies towards the centre and the metaxylem lies towards the periphery.

1. Enarch
2. Mesarch
3. Endarch
4. Exarch