O.H. Review #2

The gradual preparation of plants for transplanting is also called ___

• transplanting

• direct seeding

• indirect seeding

• hardening-off

The loss of water through the leaves and stems of plants is __

• respiration

• transpiration

• photosynthesis

• none of these

Pick the item below which is NOT one of the top 3 environmental factors for plants.

• water

• nutrition

• temperature

• soil color

This part of the tree provides the tree with support, and provides most of the useful wood

• the branches

• the roots / base

• the trunk

• the fruit

Where does the plant make sugar?

• in the roots

• in the leaves

• in the stems

• in the flowers

Pick the item below which is NOT one of the 3 macronutrients.

• nitrogen

• phosphorus

• sugar

• potassium

Pick the three letters that correctly stand for Nitrogen, Phosphorus, and Potassium.

• N - O - P

• P - O - T

• N - P - K

• K - P - N

Pick the item below which lists the 3 elements plants get from the air.

• Oxygen, Carbon, and Potassium

• Carbon, Hydrogen, and Oxygen

• Potassium, Nitrogen, and Helium

• Nitrogen, Phosphorus, Potassium,

Of the major food elements, __ has the most immediate effect on plants

• nitrogen

• phosphorus

• potassium

• carbon

The response of plants to different periods of light and darkness in terms of flowering, reproduction, and dormancy is called ___.

• Photosynthesis

• Photoperiodism

• Phototropism

• Phototography