Name: 
 

Plants Study Guide


True/False
Indicate whether the sentence or statement is true or false.
 

1. 
In the monocot leaf, the veins are branched.
 

2. 
In a dicot leaf, the veins are parallel.
 

3. 
Meristem produces cells that will become new xylem and phloem cells.
 

4. 
The cotyledon is the source of nutrients for the growing plant embryo.
 

5. 
Only flowering plants produce fruits.
 

6. 
When ethylene is applied to fruits, it speeds up their ripening.
 

7. 
Vascular bundles, surrounded by pith cells, make up the stem of nonwoody plants.
 

8. 
Succession is a series of drastic changes in the vegetation of an area as it develops toward a climax community.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

9. 
What is the most distinguishing feature of the plant kingdom?
a.
All plants contain vascular tissue.
b.
All plants make their own carbohydrates by photosynthesis.
c.
All plants reproduce either by sexual or asexual reproduction.
d.
All plants are anchored by roots.
e.
All plants contain chloroplasts.
 

10. 
Which of the following statements is correct?
a.
Plant cells divide by mitosis in several regions of the root.
b.
The meristem tissue is found only in the root.
c.
There are two types of meristem tissue: apical meristem and lateral meristem.
d.
The apical meristem causes the roots of the plant to widen.
e.
The vascular cambium produces cells that become new meristem tissue.
 

11. 
Which of the following statements concerning leaf structure is incorrect?
a.
The blade is the flattened main part of the leaf.
b.
The leaf grows from points on the stem called nodes.
c.
The region on the stem between two nodes is called an internode.
d.
Each leaf is connected to the stem by a short stalk called the blade.
e.
The vascular tissue in the stem sends out a branch to the leaf called a vein.
 

12. 
Which of the following statements concerning the leaf is incorrect?
a.
The photosynthetic tissue is called mesophyll.
b.
The palisade mesophyll is the primary site for photosynthesis.
c.
The spongy mesophyll contains many pockets called air spaces.
d.
The air spaces cause the diffusion of CO2 out of the mesophyll and O2 into the mesophyll cells.
e.
Photosynthesis causes the levels of CO2 to drop in the mesophyll cells.
 

13. 
Plants with very broad leaves would be expected to survive best in
a.
shaded areas.
b.
an open sunny field.
c.
cold climates.
d.
areas of low precipitation.
e.
areas with a high salt content in the soil.
 

14. 
Which of the following is not a function of the root?
a.
Roots produce carbohydrates by photosynthesis.
b.
Roots absorb water and minerals.
c.
Roots support and anchor a plant.
d.
Roots produce hormones.
e.
Roots produce toxins to prevent the germination of other plant seeds.
 

15. 
Which of the following is not required for photosynthesis to take place?
a.
carbon dioxide
d.
oxygen
b.
water
e.
chlorophyll
c.
sunlight
 

16. 
The part of the plant that is above ground is called the
a.
shoot.
d.
lateral meristem.
b.
apical part.
e.
vascular cambium.
c.
aerial root.
 

17. 
The region of cell division occurring at the tip of the root or stem is called the
a.
shoot.
d.
vascular cambium.
b.
apical meristem.
e.
root.
c.
lateral meristem.
 

18. 
Cells produced by the lateral meristem are called
a.
ground tissues.
d.
lateral tissues.
b.
shoots.
e.
secondary tissues.
c.
primary tissues.
 

19. 
A tree that shows secondary growth is called
a.
a seedling.
d.
an annual plant.
b.
a woody plant.
e.
a herbaceous plant.
c.
a monocot plant.
 

20. 
When the vascular cambium divides, the cells produced will develop into phloem if
a.
they can carry water and minerals.
b.
they are located just inside of the cambium.
c.
they are located in the middle of the stem.
d.
they are located just outside of the cambium.
e.
they can carry minerals only.
 

21. 
Which of the following best describes the collenchyma tissue?
a.
cells with moderately thick walls for flexibility
b.
cells with very thick walls with lignin for strength and support
c.
cells that are long with tapered ends and cell walls with pits
d.
cells that are long and thin with large pores at their ends
e.
cells with large spaces for water storage
 

22. 
Which of the following best describes the sclerenchyma tissue?
a.
cells with moderately thick walls for flexibility
b.
cells with very thick walls with lignin for strength and support
c.
cells that are long with tapered ends and cell walls with pits
d.
cells that are long and thin with large pores at their ends
e.
cells with large spaces for water storage
 

23. 
The two main kinds of cells in xylem are
a.
tracheids and companion cells
d.
vessel elements and companion cells
b.
tracheids and vessel elements
e.
tracheids and sieve tube members
c.
sieve cells and sieve tube members
 

24. 
If a plant's leaves lost their cuticle through the action of an air pollutant, the major danger to the plant is
a.
too much moisture.
d.
loss of oxygen.
b.
loss of moisture.
e.
loss of carbon dioxide.
c.
lack of minerals.
 

25. 
The ____ is located between the petiole of the leaf and the stem.
a.
node
d.
bud
b.
internode
e.
sheath
c.
blade
 

26. 
Photosynthetic cells of the leaves obtain water from
a.
stomata.
d.
phloem cells of veins.
b.
guard cells.
e.
xylem cells of veins.
c.
air.
 
 
The arrows represent the diffusion of substances in the leaf.
images/i0290000.jpg
 

27. 
Refer to the diagram above. Suppose the plant was exposed to light. The arrows I and III will represent the movement of
a.
water and oxygen.
d.
carbon dioxide and carbohydrates.
b.
oxygen and carbon dioxide.
e.
oxygen only.
c.
water and carbon dioxide.
 

28. 
Refer to the diagram above. At night, arrow II would represent the diffusion of
a.
water.
d.
carbohydrates.
b.
carbon dioxide.
e.
nitrates.
c.
oxygen.
 

29. 
When the stomata are open they allow carbon dioxide to enter, but they also allow
a.
oxygen to diffuse into the leaf.
b.
mesophyll cells to be lost to the air.
c.
for the loss of water.
d.
for photosynthesis to continue in the dark.
e.
nitrates to leave the leaf.
 

30. 
The only way plants can control water loss on a short-term basis is to
a.
close their stomata.
d.
grow only where water is available.
b.
develop a thick waxy layer.
e.
all of the above.
c.
produce a thick layer of bark.
 
 
images/i0340000.jpg
 

31. 
Identify the structure where carbon dioxide enters the leaf.
a.
A
d.
D
b.
B
e.
E
c.
C
 

32. 
Identify the structure where most photosythesis occurs.
a.
A
d.
D
b.
B
e.
E
c.
C
 

33. 
Identify the site where most oxygen is produced.
a.
A
d.
D
b.
B
e.
E
c.
C
 

34. 
Identify the structure that transports carbohydrates to other parts of the plant.
a.
A
d.
D
b.
B
e.
E
c.
C
 

35. 
Which of the following best describes the seeds of a dicot?
a.
The seeds produce only one cotyledon with no endosperm.
b.
The seeds contain two cotyledons with endosperm.
c.
The seeds contain two cotyledons and very little endosperm.
d.
An example is the bean.
e.
c and d
 

36. 
For fruit to ripen quickly, it is often placed in a brown paper bag because
a.
this prevents the light from rotting the fruit and slowing down its ripening.
b.
the darkness will cause the fruit to ripen faster than in the light.
c.
the levels of ethylene produced by the fruit will decrease in the bag, thus causing the fruit to ripen.
d.
the levels of abscisic acid will rise in the bag, causing the fruit to ripen faster.
e.
the levels of ethylene will rise causing the fruit to ripen faster.
 

37. 
Succession is defined as
a.
a series of gradual changes occurring in plants, followed by animals in an area.
b.
the replacement of one type of vegetation with another in an area.
c.
all the abiotic and biotic factors characteristic of a region.
d.
distinct steps that result in a climax community of several species living in one area.
e.
coexistence of several species living in one area.
 

38. 
Which of the following concerning secondary succession is correct?
a.
Secondary succession follows a partial or complete destruction of an existing community.
b.
Secondary succession depends on lichens, which help build the soil.
c.
It occurs where life previously existed, a burned forest, for example.
d.
all of the above
e.
a and c only
 

39. 
Where is primary succession likely to begin?
a.
in an abandoned field
d.
in a freshly dug garden
b.
where a forest has been clear cut
e.
in a forest after a forest fire
c.
on a sandy beach
 

40. 
Secondary succession can best be described as
a.
plants regrowing in a cleared-out forest.
b.
lichens helping to break down rock and form soil.
c.
plants growing on a sandy beach.
d.
mosses growing on a bare rock.
e.
b, c, and d only
 



 
Check Your Work     Reset