Past Papers Evolutionary Trends in Tracheophyta


Subject: Evolutionary Trends in Trachaeophytes

Time Allowed: 15 Minutes

Maximum Marks: 10

NOTE: Attempt this Paper on this Question Sheet only. Please encircle the correct option. Division of marks is given in front of each question. This Paper will be collected back after expiry of time limit mentioned above.


Part-I Encircle the right answer, cutting and overwriting is not allowed. (10)

1. The plant having xylem and phloem originated in the
a. Devonian
b. Ordovician
c. Silurian
d. Cambrian
2. Which of the following is called Living Fossil?
a. Ephedra
b. Pinus
c. Cycas
d. Ginkgo
3. The sporangia in early Vascular Land Plants are;
a. Lateral

b. Terminal
c. Axillary
d. Both a & b
4. Cookson ia belongs’to group;
a. Rhyniophyta
b. Zosterophyllophyta
c. Psilophyta
d. Lycophyta
5. First true seeds appeared in
a. Seed Ferns
b. Progymnosperms
c. Gymnosperms
d. Angiosperms
6. Catapult mechanism of dehiscence was present in;
a. Eusporangia
b. Leptosprangia
c. Both a & b
d. None of them
7. Earliest known Lycopsids are included in;
a. Drepanophycales
b. Ophioglosales
c. Gnetales
d. Ranales
8. Stems mostly equipped with ridges and forrows are characteristic for
a. Ferns
b. Dioon
c. Sphenopsids
d. Ahies
9. Trilete Spores are those having;
a. Triradiate germinal suture
b. Smooth exine
c. Large apertures
d. Pores
10. Maiden hair fern is the other name for;
a. Selaginella
b. Psilotum
c. Adiantum
d. None


Subject: Evolutionary Trends in Trachaeophytes

Time Allowed: 2 Hour and 45 Minutes

Maximum Marks: 50



Part-II Give short answers, Each question carries equal marks. (20)

Q#1: Define Tracheophytes.

Q#2: Give examples of LIGULATE I,YCOPHYTES.

Q#3: Define HETEROSPORY. What is its importance?

Q#4: Enlist any four synthetic characters of PSILOPHYTA


Q#6: Enlist 5 general features of CYCADALES.

Q#7: What is the importance of “Rhynie Chert Plants”?

Q#8: Highlight any four synthetic characters of Gymnosperms.

Q#9: Differentiate between Microphylls and Megaphylls.

Q#10: Differentiate between Protostele and Siphonostele.


Part-III Give detailed answers, Each question carries equal marks. (30)

Q#1: Highlight the Synthetic Characters of PSEUDOBORNIALES and PLEUROMIALES along with their EVOLUTIONARY IMPLICATIONS. Give examples

Q#2: How ANGIOSPERMS were evolved? Justify your answer with different theories.

Q#3: Compare and Contrast CONIFERALES and GNETALES.

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