Most of the plant hormones promote plant growth. A plant hormone which inhibits growth is:

One of the following is not caused by the growth related movement of the concerned plant part. This is:

The bending of the root of a plant away from a source of light is caused by a plant hormone called:

The movement of a shoot towards light is:

The bending of the stem of a plant towards a source of light is caused by the action of a phytohormone known as: