4.0 Hort I '24

Caroline is careful to use tissue culture in laboratory conditions that are aseptic. Therefore, the laboratory environment is:

• dirty.

• humid.

• pretty.

• sterile.

Vegetative growth is the growth of:

• flowers and fruits.

• fruits and roots.

• leaves, stems, and roots.

• roots, seeds, and flowers.

Jenny needs to construct some beds to use for rooting azalea cuttings. How deep should the rooting media be?

• 1 inch

• 4 inches

• 12 inches

• 24 inches

If Dave has a bag of fescue that has a seed germination rate of 80%, he can expect:

• 20 out of 80 seeds to germinate.

• 20 out of 100 seeds to germinate.

• 80 out of 100 seeds to germinate.

• all seeds to germinate.

In which stage of growth do plants rest or grow very little?

• Dormant

• Intermediate

• Juvenile

• Reproductive

Jacob learns a disadvantage of propagating using cuttings is that when cuttings are removed from the parent plant, the:

• cuttings’ absorption process stops.

• cuttings are cut off from their source of water.

• parent plant needs more light.

• parent plant needs additional fertilizer.

The main product of photosynthesis is:

• carbon dioxide.

• nitrogen.

• sugar.

• water.

The by-product of photosynthesis is:

• carbon dioxide.

• nitrogen.

• oxygen.

• water.

When compared to the amount of oxygen produced in the process of photosynthesis, the amount of oxygen used in plant respiration is:

• about the same.

• less.

• more.

• much more.

The chemical formula for photosynthesis is:

• 6CO2 + 6H2O → C6H12O6 + 6O2.

• C6H12O6 + 6O2 → 6CO2 + 6H2O.

• NH4NO3 + 4H2O → 6NaCl + 4H2O.

• 4P2O5 + 6CO2 → 6H2O + 4CaCO3.