Differentiate between the following:
$(i)$ red algae and brown algae
$(ii)$ liverworts and moss
$(iii)$ homosporous and heterosporous pteridophyte
$(iv)$ syngamy and triple fusion
Differentiate between the following:
$(i)$ red algae and brown algae
$(ii)$ liverworts and moss
$(iii)$ homosporous and heterosporous pteridophyte
$(iv)$ syngamy and triple fusion
$(i)$ Red algae and brown algae
| Red algae | Brown algae | ||
| $(1)$ | Red algae are grouped under the class Rhodophyceae. | $(1)$ | Brown algae are grouped under the class Phaeophyceae. |
| $(2)$ | They contain floridean starch as stored food | $(2)$ | They contain mannitol or laminarin as stored food. |
| $(3)$ | They contain the photosynthetic pigments chlorophylls $a$ and $d ,$ and phycoerythrin. | $(3)$ | They contain the photosynthetic pigments chlorophylls a and $c,$ and fucoxanthin. |
| $(4)$ | Their cell walls are composed of cellulose, pectin, and phycocolloids | $(4)$ | Their cell walls are composed of cellulose and algin. |
| $(5)$ | Flagella are absent | $(5)$ | Two flagella are present |
$(ii)$ Liverworts and moss
| Liverworts | Moss | ||
| $(1)$ | They have unicellular rhizoids. | $(1)$ | They have multicellular rhizoids. |
| $(2)$ | Scales are present very often | $(2)$ | Scales are absent |
| $(3)$ | They are generally thalloid, with dichotomous branching. | $(3)$ | They are foliage, with lateral branching |
| $(4)$ | Gemma cups are present | $(4)$ | Gemma cups are absent |
| $(5)$ | Sporophyte has very photosynthetic tissue little | $(5)$ | Sporophyte has abundant photosynthetic tissue |
$(iii)$ Homosporous and heterosporous pteridophyte
| Homosporous pteridophytes | Heterosporous pteridophytes | ||
| $(1)$ | They bear spores that are of the same type. | $(1)$ | They bear two kinds of spores - microspores and megaspores. |
| $(2)$ | They produce bisexual gametophytes. | $(2)$ | They produce unisexual gametophytes. |
$(iv)$ Syngamy and triple fusion
| Syngamy | Triple fusion | ||
| $(1)$ | It is the process of fusion of the male gamete with the egg in an angiosperm | $(1)$ | It is the process of fusion of the male gamete with the diploid secondary nucleus in an angiosperm |
| $(2)$ | A diploid zygote is formed as a result of syngamy. | $(2)$ | A triploid primary endosperm is formed as a result of triple fusion. |
Similar Questions
Consider the following four statements whether they are correct or wrong.
$A.$ The sporophyte in liverworts is more elaborate than that in mosses.
$B.$ Salvinia is heterosporous.
$C.$ The lifecycle in all seedbearing plants is diplontic.
$D.$ In Pinus male and female cones are borne on different trees.The two wrong statements together are
Consider the following four statements whether they are correct or wrong.
$A.$ The sporophyte in liverworts is more elaborate than that in mosses.
$B.$ Salvinia is heterosporous.
$C.$ The lifecycle in all seedbearing plants is diplontic.
$D.$ In Pinus male and female cones are borne on different trees.The two wrong statements together are
- [AIPMT 2011]
Match the plant with the kind of life cycle it exhibits:
$List-I$
$List - II$
$(a)$ Spirogyra
$(i)$ Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte
$(b)$ Fern
$(ii)$ Dominant haploid free-living gametophyte
$(c)$ Funaria
$(iii)$ Dominant diploid sporophyte alternating with reduced gametophyte called prothallus
$(d)$ Cycas
$(iv)$ Dominant haploid leafy gametophyte alternating with partially dependent
Choose the correct answer from the options given below:
Match the plant with the kind of life cycle it exhibits:
| $List-I$ | $List - II$ |
| $(a)$ Spirogyra | $(i)$ Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte |
| $(b)$ Fern | $(ii)$ Dominant haploid free-living gametophyte |
| $(c)$ Funaria | $(iii)$ Dominant diploid sporophyte alternating with reduced gametophyte called prothallus |
| $(d)$ Cycas | $(iv)$ Dominant haploid leafy gametophyte alternating with partially dependent |
Choose the correct answer from the options given below:
- [NEET 2022]
Match the followings ( column $I$ with column $II$ )
Column $I$
Column $II$
$(a)$ Chlamydomonas
$(i)$ Moss
$(b)$ Cycas
$(ii)$ Pteridophyte
$(c)$ Selaginella
$(iii)$ Algae
$(d)$ Sphagmum
$(iv)$ Gymnosperm
Match the followings ( column $I$ with column $II$ )
| Column $I$ | Column $II$ |
| $(a)$ Chlamydomonas | $(i)$ Moss |
| $(b)$ Cycas | $(ii)$ Pteridophyte |
| $(c)$ Selaginella | $(iii)$ Algae |
| $(d)$ Sphagmum | $(iv)$ Gymnosperm |
Identify correct pair :
$\begin{array}{|l|l|} \hline Column\,\,-\,\,I & Column\,\,-\,\,II \\ \hline (1)\,\,Gymnosperm & (p)\,\,Sphegnum \\ \hline (2)\,\,Angiosperml & (q)\,\,Sellaginella \\ \hline (3)\,\,Bryophytes & (r)\,\,Pinus \\ \hline (4)\,\,Pteridophyte & (s)\,\,Eucalyptus \\ \hline \end{array}$
Identify correct pair :
$\begin{array}{|l|l|} \hline Column\,\,-\,\,I & Column\,\,-\,\,II \\ \hline (1)\,\,Gymnosperm & (p)\,\,Sphegnum \\ \hline (2)\,\,Angiosperml & (q)\,\,Sellaginella \\ \hline (3)\,\,Bryophytes & (r)\,\,Pinus \\ \hline (4)\,\,Pteridophyte & (s)\,\,Eucalyptus \\ \hline \end{array}$
Read the following five statements and answer the question.
$(a)$ In equisetum the female gametophyte is retained on the parent sporophyte.
$(b)$ In Ginkgo male gametophyte is not independent.
$(c)$ The sporophyte in Riccia is more developed than that in Polytrichum.
$(d)$ Sexual reproduction in Volvox is isogamous.
$(e)$ The spores of slime molds lack cell walls.
How many of the above statement are correct?
Read the following five statements and answer the question.
$(a)$ In equisetum the female gametophyte is retained on the parent sporophyte.
$(b)$ In Ginkgo male gametophyte is not independent.
$(c)$ The sporophyte in Riccia is more developed than that in Polytrichum.
$(d)$ Sexual reproduction in Volvox is isogamous.
$(e)$ The spores of slime molds lack cell walls.
How many of the above statement are correct?