Pick out the wrong statement

• Gymnosperms lack vessels in their xylem.

• The cell wall of collenchyma is made up of cellulose, hemicellulose and pectin

• The first formed primary xylem elements are called protoxylem

• The cell wall of parenchyma is made up of pectin.

• The cell wall of parenchyma is made up of pectin.

Choose the correct statement

• Members of phycomycetes are facultative parasites on plants

• Fusion of protoplasms between two motile or non-motile gametes is called plasmogamy

• Kingdom Plantae includes all eukaryotic chlorophyll containing organisms and non-chlorophyll organisms called plants

• Trichoderma belongs to basidiomycetes

• Trichoderma belongs to basidiomycetes

Pick out the statement that does not apply to bryophytes

• Includes the ferns and horsetails

• Thallus is a gametophyte

• Sporophyte shows foot, seta and capsule

• Gemmae help in reproduction

• Gemmae help in reproduction

234.

Which of the following is a characteristic feature of gymnosperms?

• The gymnosperms are homosporous

• The male and female gametophytes do not have independent free living existence

• The sporophyte is dependent on the gametophyte

• The ovules are enclosed by the ovary

• The ovules are enclosed by the ovary

Consider the following statements with respect to angiosperms

(A) The male sex organ in a flower is the stamen

(B) The anthers following mitosis produce pollen grains

(C) In an embryosac, the primary endosperm nucleus (PEN) is diploid

(D) After double fertilization the ovules develop into seeds and ovaries develop into fruit.

Of the above statements

• (C) and (D) are correct

• (A) and (B) are correct

• (A) and (C) are correct

• (A) and (D) are correct

• (A) and (D) are correct

Pick out the wrong statement

• Gymnosperms lack vessels in their xylem

• The cell wall of parenchyma is made up of pectin

• The first formed primary xylem elements are called protoxylem

• Gymnosperms have albuminous cells and have sieve
  cells in their phloem

• Gymnosperms have albuminous cells and have sieve
  cells in their phloem

Pick out the wrong statement

(A) Apoplast is the system of adjacent cell walls that is continuous throughout the plant

(B) Endodermis is impervious to water molecules

(C) Pinus seeds germinate and establish without the presence of mycorrhizae.

• (A) and (B)

• (B) and (C)

• (C) only

• (B) only

• (B) only

Which of the following is false in angiosperms?

• Egg cell – Haploid

• Megaspore – Diploid

• Pollen grain – Haploid

• Synergid – Haploid

• Synergid – Haploid

Diplontic type of life cycle is seen in
(i) Fucus

(ii) Gymnosperms

(iii) Pteriodophytes

(iv) Bryophytes

• (i) only

• (i) and (iv) only

• (i) and (iii) only

• (iii) only

• (iii) only

Which of the following statements is wrong about bryophytes?

• Bryophytes are also called amphibian of the plant kingdom.

• The gametophyte is the main plant body

• Sexual reproduction takes place in the presence of water

• Sporophyte is not free-living but attached to the photosynthesis gametophyte

• Sporophyte is not free-living but attached to the photosynthesis gametophyte