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Worksheets

Hort1 - 4.00

Total questions: 30

Worksheet time: 15mins

Name
Class
Date
1.

How can Tracie reduce stress on greenhouse-produced seedlings at transplanting time before removing them from the greenhouse?

a)

Fertilize the seedlings more

b)

Harden off the seedlings

c)

Mist the seedlings often

d)

Water the seedlings more

2.

Samantha is cutting the iris rhizome in sections. This method of asexual propagation in which plants are broken or cut into smaller pieces or clumps and are planted to form new plants is:

a)

division

b)

grafting

c)

layering

d)

seeding

3.

The plant process by which all food is manufactured is:

a)

absorption

b)

photosynthesis

c)

respiration

d)

translocation

4.

When a plant first begins growing from a seed, the stage of growth is:

a)

dormant

b)

juvenile

c)

mature

d)

reproductive

5.

The main product of photosynthesis is:

a)

carbon dioxide

b)

nitrogen

c)

sugar

d)

water

6.

The process of moving synthesized and absorbed food and nutrients within the plant is:

a)

photosynthesis

b)

respiration

c)

reproduction

d)

translocation

7.

Janet uses stem cuttings to propagate her prize-winning azaleas. What is the best time of day for Janet to take the cuttings from her azaleas?

a)

early evening

b)

early morning

c)

late afternoon

d)

mid-day

8.

Victor joins a new variety of pecan tree to some rootstock he has grown from seeds. Which propagation method does he use?

a)

grafting

b)

hardwood cuttings

c)

layering

d)

softwood cuttings

9.

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

a)

about the same

b)

less

c)

more

d)

much more

10.

Vegetative growth is the growth of:

a)

flowers and fruits

b)

fruits and roots

c)

leaves, stems, roots

d)

roots, seeds, flowers

11.

Christy enjoys mound layering her prize-winning azalea. Which is true of her mound layering technique?

a)

The plant has to be dug and separated first.

b)

A trench has to be dug for each stem being propagated.

c)

Only one inch of bark has to be removed.

d)

Soil has to be heaped up around the plant.

12.

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

a)

cuttings’ absorption process stops.

b)

cuttings are cut off from their source of water.

c)

parent plant needs more light.

d)

parent plant needs additional fertilizer.

13.

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

a)

dirty

b)

humid

c)

pretty

d)

sterile

14.

Hannah is hardening off some tomatoes started in the greenhouse. Which is she reducing to harden off her plants?

a)

fertilizer and air

b)

humidity and water

c)

lime and phosphate

d)

soil and fertilizer

15.

Callie is propagating her African violet by taking leaf cuttings. She is confident that leaf cuttings will work because she is using:

a)

axillary buds

b)

herbaceous plants

c)

stem tissue

d)

woody tissue

16.

Water loss from the leaf surface through evaporation is the plant process called:

a)

absorption

b)

photosynthesis

c)

respiration

d)

transpiration

17.

Andrew selects a unique azalea plant. The propagation method that he uses to rapidly increase the number of identical plants is:

a)

grafting

b)

leaf cuttings

c)

seeding

d)

tissue culture

18.

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

a)

20 out of 80 seeds to germinate

b)

20 out of 100 seeds to germinate

c)

80 out of 100 seeds to germinate

d)

all seeds to germinate

19.

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

a)

dormant

b)

intermediate

c)

juvenile

d)

reproductive

20.

The by-product of photosynthesis is:

a)

carbon dioxide

b)

nitrogen

c)

oxygen

d)

water

21.

Victoria is careful to study the temperature, moisture, and seed viability for the plants she plans to grow. These are factors that affect:

a)

germination rates

b)

hardwood cuttings

c)

softwood cuttings

d)

tree grafts

22.

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

a)

1 inch

b)

4 inches

c)

12 inches

d)

24 inches

23.

Chris is interested in producing the most new plants in the shortest time period. What is the best propagation method for him to accomplish his goal?

a)

budding

b)

cutting

c)

grafting

d)

tissue culture

24.

Jamie has a tray of marigold seedlings she started from seed. She transplants the seedlings from the seedling flat to cell packs when the:

a)

first mature roots appear

b)

first true leaves are on the plant

c)

plants are 2 weeks old

d)

seedlings are 6 inches tall

25.

Uneek is making leaf cuttings. She must be certain that she cuts the leaf:

a)

margin

b)

petiole

c)

stomate

d)

vein

26.

Plant roots take water from the soil through the process of:

a)

absorption

b)

photosynthesis

c)

reproduction

d)

respiration

27.

Renee needs about 1,000 petunia plants. If the seed germination rate is 50%, what is the minimum number of seeds she should sow?

a)

50

b)

1,000

c)

1,200

d)

2,000

28.

Jennifer is using Rootone on her poinsettia cuttings. She knows that an advantage of using hormones on cuttings is that they:

a)

aid in photosynthesis

b)

decrease water needs

c)

keep the leaves from dropping

d)

seed root development

29.

Neil is sexually propagating some plants. Which plant parts will he use?

a)

leaves

b)

roots

c)

seeds

d)

stems

30.

The chemical formula for photosynthesis is:

a)

6CO2 + 6H20 → C6H12O6 + 6O2.

b)

C6H12O6 + 6O2 → 6CO2 + 6H2O.

c)

NH4NO3 + 4H2O → 6NaCl + 4H2O.

d)

4P2O5 + 6CO2 → 6H2O + 4CaCO3.