Name a gymnosperm with vessels in the Xylem. 

1 Answer

Answer :

Ans: Gnetum. 

Related questions

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 : 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 :  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 : 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

Description : Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Last Answer : (b) most of angiosperms and few gymnosperms

Description : Vessels are found in (a) all angiosperms and some gymnosperm (b) most of angiosperms and few gymnosperms (c) all angiosperms, all gymnosperms and some pteridophyta (d) all pteridophyta.

Last Answer : (b) most of angiosperms and few gymnosperms

Description : The xylem vessels of plants are part of which tissue ?

Last Answer : The xylem vessels of plants are part of the complex tissue.

Description : What are xylem vessels and tracheids?

Last Answer : Xylem vessels consist of series of elongated dead cells joined together forming end to end tube like structure for conduction of water and salts

Description : A column of water within xylem vessels of tall trees does not break under its weight because of (a) lignification of xylem vessels (b) positive root pressure (c) dissolved sugars in water (d) tensile strength of water.

Last Answer : (d) tensile strength of water.

Description : The balloon-shaped structures called tyloses (a) originate in the lumen of vessels (b) characterise the sapwood (c) are extensions of xylem parenchyma cells into vessels (d) are linked to the ascent of sap through xylem vessels.

Last Answer : (c) are extensions of xylem parenchyma cells into vessels

Description : Vascular bundles in monocotyledons are considered closed because (a) there are no vessels with perforations (b) xylem is surrounded all around by phloem (c) a bundle sheath surrounds each bundle (d) cambium is absent.

Last Answer : (d) cambium is absent.

Description : An organised and differentiated cellular structure having cytoplasm but no nucleus is (a) vessels (b) xylem parenchyma (c) sieve tubes (d) tracheids.

Last Answer : (c) sieve tubes

Description : Which of the following plant cells will show totipotency? (a) Sieve tubes (b) Xylem vessels (c) Meristem (d) Cork cells

Last Answer : (c) Meristem

Description : The chief water conducting elements of xylem in gymnosperms are (a) vessels (b) fibres (c) transfusion tissue (d) tracheids.

Last Answer : (d) tracheids.

Description : An organised and differentiated cellular structure having cytoplasm but no nucleus is (a) vessels (b) xylem parenchyma (c) sieve tubes (d) tracheids.

Last Answer : (c) sieve tubes

Description : Which of the following plant cells will show totipotency? (a) Sieve tubes (b) Xylem vessels (c) Meristem (d) Cork cells

Last Answer : (c) Meristem

Description : The chief water conducting elements of xylem in gymnosperms are (a) vessels (b) fibres (c) transfusion tissue (d) tracheids

Last Answer : d) tracheids.

Description : Wood without xylem vessels are called as

Last Answer : Wood without xylem vessels are called as – Soft wood

Description : What does the term gymnosperm mean. -Biology

Last Answer : a plant of a group that comprises those that have seeds unprotected by an ovary or fruit, including the conifers, cycads, and ginkgo.

Description : Where does the zygote of a gymnosperm develop? -Biology

Last Answer : If sperm then travel from the pollen to an egg so fertilization can occur, a diploid zygote results. The zygote develops into an embryo within a seed, which forms from the ovule inside the female cone.

Description : Where do gymnosperm seeds develop -Biology

Last Answer : Gymnosperm seeds develop either on the surface of scales or leaves, which are often modified to form cones, or solitary as in yew, Torreya, Ginkgo. The gymnosperms and angiosperms together compose the spermatophytes or seed plants.

Description : Where is pollen produced in a gymnosperm? -Biology

Last Answer : answer:

Description : Which anticancerous botano-chemical is obtained from a gymnosperm?

Last Answer : Which anticancerous botano-chemical is obtained from a gymnosperm? A. Ephedrine B. Strychnine C. Taxol D. Reserpine

Description : 1. Smallest gymnosperm

Last Answer : Name the following: 1. Smallest gymnosperm 2. The plant known as the ‘Coast red wood of California’.

Description : Is larch an angiosperm or gymnosperm?

Last Answer : Need answer

Description : Is a coconut a angiosperm or a gymnosperm?

Last Answer : it is a gymnosperm