Plants and the Natural Environment Unit Test

Name:

Plants and the Natural Environment Unit Test

Match up – match the following terms with the correct definition. Each match is worth one mark. (5 marks)

/5 - KU

Xylem a. the collection of female sexual reproductive structures of the plant

Phloem b. the collection of male sexual reproductive structures of the plant

Chloroplast c. composed of living cells and allows for the transport of nutrients throughout various organs of the plant

Pistil d. composed of dead cells and allows for water passage throughout various organs of the plant

Stamen e. is the key feature that contains the material that allows photosynthesis to occur in plants

True or False – Circle T (true) or F (false) corresponding to the following statements. Each answer is worth one mark. (5 marks)

/5 - KU

A carbon sink is a natural or artificial reservoir that accumulates and T F

stores a carbon-containing compound for an indefinite period of time.

Nitrogen fixation is a process in the environment where nitrogen (N2) T F

is converted to ammonium (NH4).

Plant propagation refers both sexual and asexual reproduction in T F

plants.

Plants that have taproots are essential in preventing erosion from T F

occurring.

An adaptation is an evolutionary trait that only results from natural T F

selection.

Fill in the blank – write the appropriate scientific term in the blank spots below. Each of the statements corresponds to the numbered label on the diagram below. Each correct answer is worth one mark. (5 marks)

/5 - KU

1. Water is collected in bodies of water through the process of ______.

2. Then, ______occurs when water warms and turns into water vapor in the atmosphere.

3. Simultaneously, a process occurring in plants called ______causes plants to lose water to the atmosphere.

4.Through the process of ______water vapour is cooled, causing clouds to form.

5. Completing the cycle clouds return water back to the environment at the Earth’s surface through ______.

Multiple Choice – Circle the correct answer. Each question is worth one mark. (5 marks)

If soil has an approximate pH of 6, and grass grows optimally with a soil pH between 8.0 and 9.0, how would the grass appear to be affected? /1 - A

a.  no grass would grow

b.  few blades of grass would grow

c.  grass would grow to full potential, just more slowly

d.  grass would be lush and grow rapidly

e.  it would look completely normal

These two elements of fertilizer promote the blooming of flowering plants and vegetables: /1 - KU

a.  nitrogen and potassium

b.  phosphorous and potassium

c.  phosphorous and sulfur

d.  nitrogen and phosphorous

Which of the following are useful in restoring a shoreline ecosystem? /1 - A

a.  native shrubs

b.  native grasses

c.  native wildflowers

d.  all of the above

e.  none of the above

Which of the following tropisms may influence a plant? /1 - KU

a.  chemotropism

b.  thigmotropism

c.  phototropism

d.  geotropism

e.  all of the above

Which of the following is not an example of asexual reproduction? /1 - KU

a.  cloning

b.  propagation

c.  pollination

d.  grafting

e.  all of the above

Short answer – Choose two questions to answer from A, B, and C to complete and choose question to answer from D and E. Answers must be written in full sentences with proper spelling, and may be in point or paragraph form. (33 marks)

A. Describe what takes place during photosynthesis explaining what chemical process is taking place and what physically takes place before, during, and after this process. (8 marks)

/6 - A

/3 - C

B. How are plants in the dessert adapted for survival compared to canopy trees in the rainforest? (8 marks)

/6 - A

/3 - C

C. Describe, in detail, what would happen to a plant if there was no sclerenchyma and what the implications are for physiological processes in the plant.

/6 - A

/3 - C

D. How do herbicides and pesticides affect the sustainability of plants, and why must the use of herbicides and pesticides in the natural environment be regulated? (15 marks)

/5 - C

/10 - TI

E. How do plants play an integral role in sustaining the natural environment and what can we do as people to protect plants in the natural environment to maintain natural integrity? (15 marks)

/5 - C

/10 - TI

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