Question

25. Into which taxon would you classify the following organism: a multicellular eukaryote, with a cellulose cell wall, that is photosynthetic, and has a number of tissues?

a) Excavata.

b) SAR.

c) Metazoa.

d) Plantae.

26. Which statement is not true of plant alternation of generations?

a) A gametophyte makes gametes.

b) A sporophyte is 2n.

c) A spore fuses with another spore to form a diploid zygote.

d) A spore is haploid (n).

27. Which tissue is considered a “dead” tissue lacking cytoplasm, cell membranes, nuclei, and other cellular organelles, and is responsible for transpiration of water from roots to leaves?

a) Xylem.

b) Phloem.

28. In phloem, which cells actually translocate sugars?

a) Sieve elements.

b) Companion cells.

29. Which of the following is not required for transpiration of water through xylem?

a) Root pressure.

b) ATP.

c) Evaporative pressure.

d) Capillary action.

30. Which of the following is not required for the translocation of sugars through phloem?

a) Sugars are loaded at a “source” such as leaves.

b) Sugars are unloaded at a “sink” such as the root.

c) ATP.

d) Evaporative pressure.

31. Which statement is true of Bryophytes, the mosses?

a) They are seed producers.

b) They are vascular, i.e. have xylem and phloem.

c) They require water for fertilization.

d) They are sporophyte dominant.

32. Which statement is true of Pterophytans, the ferns?

a) They are seed producers.

b) They require water for fertilization.

c) They are avascular, i.e. they lack xylem and phloem.

d) They are gametophyte dominant.

33. Which statement is true of Conifers?

a) They are seed producers.

b) They require water for fertilization.

c) They are avascular, i.e. they lack xylem and phloem.

d) They are gametophyte dominant.

34. The endosperm of a Conifer seed is:

a) Haploid (n).

b) Diploid (2n).

c) Triploid (3n).

d) Tetraploid (4n).

35. Which statement is not true of a seed?

a) It contains an embryonic sporophyte plant.

b) Endosperm provides nutrition to the developing embryo, hopefully until the embryo can photosynthesize for itself.

c) Seed coats protect the embryo and endosperm.

d) Seeds are collected by many animals, and help in the spread of seed plants.

e) All plants produce seeds.

36. In the Anthophyta, the plant seed coat is 2n, and the embryo is 2n. Are they genetically identical?

a) Yes.

b) No.

37. Which of the following is the female reproductive organ in a flower?

a) Petal.

b) Stamen.

c) Pistil.

d) Anther.

e) Receptacle

Answer 1

The Excavata taxon contains the unicellular eukaryotic organisms with the groove feeding habitat.

The SAR or Harosa is a clade that includes three Groups named stramenopiles, alveolates, and Rhizaria. This group contains prokaryotic cells.

The metazoa group contains the eukaryotic and multicellular animals. This group only contains the animals hence no photosynthetic activity.

The plantar group contains the multicellular eukaryotic organisms with the cellulosic cell wall and photosynthetic activity.

The answer is D.