Photoperiodism quiz

What is photoperiodism?

• Taking photos for a period of time

• The response to changes in day length that enables plants (or any other living organisms) to adapt to seasonal changes in their environment

• A plant's growth movements towards or away from a stimulus.

• The response of a plant part to the stimulus of gravity which grow upward irrespective of the position in which they are placed

Phytochromes are known as

• Red light photoreceptor

• Green light photoreceptor

• Red/far-red light photoreceptor

• Blue-light photoreceptor

What type of plants show this type of flowering response?

• Long day plants

• Short day plants

• Day neutral plants

• Long-short day plants

chrysanthemums are example of......

• Short day plant

• Long day plant

• All of the above

• Day Neutral plant

Plants that need 10 hours or less of darkness to flower.

• Photoperiodism

• Short day plant

• Long day plant

• Day neutral plant

Plant that doesn't require a specific photoperiod and can begin the flowering process over a range of night lengths (ex. African violet).

• Short day plant

• Long day plant

• stomata

• Day neutral plant

Plant use photoreceptor (light-sensitive) proteins to sense the change of season

• TRUE

• FALSE

Tomatoes are relatively unaffected by the amount of light per day. So what are the categories of tomatoes?

• Dry seed plant

• hard seed plant

• Day neutral plant

• Long day plant

Cryptochromes are blue light photoreceptors.

• True

• False

Examples of plant photoreceptors include

• Phytochrome

• Cryptochrome

• Phototropin

• All of the above