Biology 301 Practice - Exam I - Set 1

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Instructions:  This page includes a sample of questions relating to material convered during the first two weeks of class.   You may answer as many or as few questions as you wish, in any order.   When you are ready to check your performance, scroll to the bottom and click the 'Submit' button.   All questions you answered will be graded, and your score will be shown at the bottom of the exam.   You can also retry questions that you missed by using the link at the bottom of the page that shows your results and this process can be repeated.   This 'drill' system is under development. Please contact Dr. Wilson (h-wilson@tamu.edu) with problems or comments.

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1) The term oblique refers to absence of:

1. pubescence
2. woody tissue
3. trichomes
4. bilateral symmetry
5. a waxy covering

2) A leaf at the node of a primary (as opposed to lateral) shoot would be called:

1. scapose
2. dioecious
3. cauline
4. fascicled
5. decussate

3) A thorn represents a modified :

1. stipule
2. leaf
3. bract
4. spine
5. shoot

4) A species that shows some plants in a given population with only pistillate flowers and others with only staminate flowers would be:

1. scapose
2. dioecious
3. complete
4. perfect
5. monoecious

5) The area at the 'A' pointer in Figure 1 (below) of a woody shoot in Winter condition would be expected to contain what type of tissue:

Figure 1

1. pericarp
2. endosperm
3. meristematic
4. pith
5. vascular

6) The areas at the 'B'and 'C' pointers in Figure 1 (above) would be expected to contain what type of tissue:

1. vascular
2. endosperm
3. meristematic
4. pith
5. pericarp

7) Flowers lacking a set of sterile appendages (calyx or corolla) are known as:

1. incomplete
2. dioecious
3. epigynous
4. epipetalous
5. imperfect

8) Of the following characteristics, select the most distinctive key character for the Magnoliophyta:

1. leaf type
2. pollen structure
3. presence of seeds
4. fruit
5. roots

9) In terms of genomic composition, endosperm is:

1. haploid
2. diploid
3. triploid
4. tetraploid
5. hexaploid

10) Identify the haploid, sexual, sperm-producing plant in the angiosperm life cycle:

1. sporophyte
2. microgametophyte
3. epiphyte
4. megagametophyte (embryo sac)
5. macrophyte

11) Identify the diploid, asexual, spore-producing plant in the angiosperm life cycle:

1. sporophyte
2. microgametophyte
3. epiphyte
4. megagametophyte (embryo sac)
5. macrophyte

12) The thickened, usually underground base of the stem of many perennial herbaceous plants, from which new leaves and flowering stems arise is known as a:

1. petiolule
2. rachis
3. stolon
4. tuber
5. caudex

13) Which of the taxa listed below is the largest (includes the largest number of species):

1. Magnolidae
2. Magnoliales
3. Magnoliaceae
4. Magnolia
5. Magnoliophyta

14) An angiosperm that produces a horizontal, underground shoot is known as:

1. rhizomatous
2. scandent
3. decumbent
4. scapose
5. stoloniferous

15) The terms 'glaucous' and 'bloom' indicate that presence of:

1. trichomes
2. glands
3. stipules
4. smell
5. wax

16) Terms denoting sexual expression (dioecious or monoecious) are are applied to:

1. flowers
2. inflorescences
3. species
4. individual plants

17) In the full technical name 'Magnolia grandiflora L.', the 'L.' denotes:

1. class assignment for the genus
2. generic subclass assignment
3. 'sensu lato'
4. Linnaeus
5. 'later' or conserved name

18) An acaulescent flowering plant shows reduction of the:

1. peduncle
2. internodes
3. pyxis
4. pedicel
5. connective

19) Phenotypic plasticity is a feature of flowering plants that involves:

1. environmentally induced variation
2. variation with a genetic base
3. chromosome number
4. gametophyte competition
5. fluid transport

20) The first, most primitive, angiosperms were probably:

1. herbaceous
2. epigynous
3. syncarpous
4. sympetalous
5. woody

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End of Practice Exam I - check your responses ('submit' - below) or return to BIOL 301.

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