Recent questions tagged plant-kingdom

Description : List out the general characters of Chlorophyceae. 

Last Answer : Ans: Green algae occur in diverse habitats. They may be terrestrial, Epiphytic, Epizoic, Endozoic and parasitic.  They may be unicellular motile, non motile colonial, filamentous, branched ... . Asexual reproduction by spores. Sexual reproduction takes place by isogamy, anisogamy or oogamy

Description : Why bryophytes are called amphibians of the plant kingdom? 

Last Answer : Ans: Bryophytes live on land but they produce motile sperms which require water for swimming during fertilization. 

Description : How would you distinguish Monocots from Dicots?  

Last Answer : MONOCOTS DICOTS 1. Fibrous root system. 2. Seeds with a single cotyledon. 3. Parallel Venation 4. Vascular bundles are scattered irregularly. 5. Cambium absent.   1. Tap root ... cotyledons 3. Reticulate Venation. 4. Vascular bundles are arranged in a ring. 5. Cambium present

Description : Distinguish between homosporous and heterosporous condition in pteridophytes. 

Last Answer : Ans: Majority of pteridophytes are homosporous.All spores produced od similar type. Example: Psilotum Heterosporous pteridophytes produce macro and microspores. Example: Selaginella. 

Description : Distingush between Brown algae and red algae.  

Last Answer : BROWN ALGAE  RED ALGAE  1. Chlorophyll a and chlorophyll c is present.   1. Chlorophyll a and chlorophyll d is present. 2. Fucoxanthin is present  2. Fucoxanthin is ... Reserve food material is mannitol and laminarin.   4. Reserve food material is floridean starch.  

Description : Distinguish between Green algae and brown algae.

Last Answer : GREEN ALGAE BROWN ALGAE   1. Mostly fresh water.  1. Mostly marine.  2. Chlorophyll a and chlorophyll b present.   2. Chlorophyll a and chlorophyll c present.  3. Fucoxanthin ... present.  4. Reserve food material is starch.   4. Reserve food material is laminarin. 

Description : What are epiphytes? 

Last Answer : Ans: Plants that grow upon other plants are called Epiphytes. 

Description : What is a sporophyte? 

Last Answer : Ans: It is a plant body which produces spores. 

Description : What is a gametophyte? 

Last Answer : Ans: It is a plant body which produces male and female gametes. 

Description : Give one example of Lycopsida. 

Last Answer : Ans: Lycopodium. 

Description : Why bryophytes are called non vascular Cryptogams? 

Last Answer : Ans: Bryophytes do not contain Xylem and phloem tissues so they are non vascular and do not produce visible flowers. So they are Cryptogams.

Description : Why the sporophyte of gymnosperm is heterosporous?  

Last Answer : Ans: Sporophyte produces two types of spores like smaller micro spores and larger mega spores so it is heterosporous.  

Description :  Name the organ that fixes the plant body of Riccia to the soil.  

Last Answer : Ans: Rhizoid.  

Description : Name the class to which Riccia belongs.  

Last Answer : Ans: Hepaticopsida. 

Description : Name a parasitic angiosperm.  

Last Answer : Ans: Cuscuta. 

Description : Name a gymnosperm with vessels in the Xylem. 

Last Answer : Ans: Gnetum. 

Description : What does Embryophyta Siphonogama refer to? 

Last Answer : Ans: Embryo producing plants where pollen tube carries male gametes.

Description : Which phase predominent in the life cycle of Pteridophytes?

Last Answer : Ans: Diploid Sporophyte. 

Description : What are Cryptogams? 

Last Answer : Ans: Plants in which reproductive structures are embedded in the plant body and do not bear flowers or seeds. 

Description : Which phase is predominent in the life cycle of bryophyte? 

Last Answer : Ans: Gametophyte. 

Description : What is Thallus? 

Last Answer : Ans: Dorsiventrally flattened plant body without root stem and leaf differentiation is called Thallus. 

Description : Name the amphibians of the plant kingdom. 

Last Answer : Ans: Bryophytes

Description : Name the photosynthetic product in brown algae.  

Last Answer : Ans: Mannitol 

Description : Who prospered the five kingdom system of classification? 

Last Answer : Ans: Robert .H.Whittaker

Description : Define phycology. 

Last Answer : Ans: The branch of biology dealing with the study of algae is called Phycology.

Description : Which is the anti coagulant obtained from brown algae?

Last Answer : Ans: Sodium laminarin sulphateobtained from Laminaria is an effective blood anti coagulant.  

Description : Which algae is called sea palm? 

Last Answer : Ans: Postelsia palmaeformis 

Description : To which class of bryophyte does polytrichum belong? 

Last Answer : Ans: Bryopsida(Musci)  

Description : Which is the parasitic green algae that cause rust disease in tea and coffee plants? 

Last Answer : Ans: Cephaleuros virescens