Name________________________________                                                                 Botany - Bio 201                                                                                                          

Midterm Exam 1

Multiple Choice (worth 1 point each) Circle the best answer

1.      What tissues function in transport of water from roots to leaves?

a.      xylem

b.      phloem

c.      collenchyma

d.      parenchyma

e.      secondary meristems

2.      Science is based on

a.      faith

b.      authority

c.      evidence

d.      force

e.      consensus

3.      Strands containing xylem and phloem are

a.      mesophyll

b.      sieve tubes

c.      vessels

d.      vascular bundles

e.      none of the above

4.      Which of the following types of cells would you expect to find in the complex tissue called the epidermis?

a.      guard cells

b.      trichomes

c.      cuticle

d.      none of the above

e.      all of the above

5.      A ____ has its leaflets diverging from a single point.

a.      monocot leaf

b.      palmately compound leaf

c.      pinnately compound leaf

d.      simple leaf

e.      simple compound leaf

9.  The first leaves to form as part of the plant embryo are the ____.

            a.  habit leaves

            b.  water leaves

            c.  sun leaves

            d.  seed leaves

            e.  shade leaves

10.  Shoot apical meristem and primary meristems of the stem are located in _____.

            a.  buds

            b.  nodes

            c.  internodes

            d.  modules

            e.  cotyledons

12.   The absorbing surface of a root is increased mostly by _____.

            a.  root cap

            b.  root epidermis

            c.  root hairs

            d.  secondary growth

            e.  region of elongation

13.   A single layer of cells that controls the entry of water and minerals into the vascular tissue of the root is

a.      Casparian strip

b.      lenticel

c.      cork

d.      endodermis

e.      pericycle

14.   Monocot stems can be distinguished from dicot stems because monocot stems usually

a.      have scattered vascular bundles

b.      have a distinct pith  and cortex

c.      do not have nodes and internodes

d.      taper dramatically from the base to the apex

e.      all of the above

15.   The wood of dicot stems consists entirely of

a.      phloem

b.      xylem

c.      bark

d.      vascular cambium

e.      parenchyma

16.   If a spike placed in a tree trunk today at the height of 5 feet, and the tree grew at a rate of 2 feet per year, how high would the spike be in 12 years?

a.      24 feet

b.      12 feet

c.      29 feet

d.      5 feet

e.      impossible to predict from information given

Short Answers - BRIEFLY (but completely) answer the following questions (worth 3 points each)

1.  Describe the scientific method.  What are the important steps in the scientific method?

2.  What are the purposes of the ground tissue system?

3.  Compare and contrast vessels and tracheids (How are they similar, how are they different)?  Make sure to mention the types of plants where you would most likely find each. 

4.  What are the defining traits of plants (what makes plants different from members of other kingdoms)?

5.  Describe one of the simple tissues of plants and what characteristics this tissue has. 

6. There are three different regions found in roots.  Name these regions, draw or describe them, and list characteristics of each region. 

7.   Describe the rhizosphere and its importance.

8. Where does most water and mineral absorption occur in a root?

9. What is the structure and function of a root cap?

10.  List and define the 3 major functions of roots.

11.  Describe how you would identify the region of where cell differentiation had occurred if you were looking at a root. 

12. What is the shoot apical meristem (SAM)?

13.  What are the 2 major functions of shoot systems in plants? 

14.  Distinguish between heartwood and sapwood.

15.  What is phyllotaxis?  Describe or draw 3 different types of plant phyllotaxis.

16.  Distinguish between simple and compound leaves.

17.  What is a petiole and what is its function?

18.  What are cotyledons?  Distinguish between monocots and dicots. 

19.  How do you distinguish between a leaf and a leaflet?

20.  What are leaf veins?  Describe or draw  2 major venation patterns on leaves. 

Essays - Worth 15 points each

1.  The same types of primary meristems are found in both roots and shoots.  List these primary meristems, and tell what tissue systems they give rise to, some of the types of tissue in each systems, and examples of cells in each type of tissue.