Home
Class 12
BIOLOGY
Match the columns given below correctly....

Match the columns given below correctly.
`{:("Types of wood" ,"Description"),("1. Early wood","i. Has narrow vessels."),("2. Late wood","ii. Dead elements with highly lignified walls"),("3. Heartwood","iv. Vessels with wider cavities."),("4. Sapwood","iv. Lighter in colour."):}`

A

1 - ii , 2 - iv , 3 - iii , 4- i

B

1 - iii , 2 - i , 3 - ii , 4- iv

C

1 - iii , 2 - ii , 3 - iv , 4- i

D

1 - i , 2 - iii , 3 - iv , 4- ii

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question of matching the types of wood with their descriptions, we will analyze each type of wood and its characteristics step by step. ### Step-by-Step Solution: 1. **Understanding Early Wood**: - Early wood, also known as spring wood, is produced when the cambium is very active. - It contains vessels that are wider in diameter, allowing for efficient water transport during the growing season. - **Match**: Early wood → Vessels with wider cavities (iv). 2. **Understanding Late Wood**: - Late wood, also known as autumn wood, is produced when the cambium is less active. - It has narrower vessels compared to early wood, as fewer xylem elements are formed. - **Match**: Late wood → Has narrow vessels (i). 3. **Understanding Heartwood**: - Heartwood consists of dead xylem elements that have accumulated lignin, making their walls highly lignified. - It does not conduct water or nutrients as it is made up of non-living cells. - **Match**: Heartwood → Dead elements with highly lignified walls (ii). 4. **Understanding Sapwood**: - Sapwood consists of living xylem elements that are capable of conducting water and nutrients. - It appears lighter in color compared to heartwood. - **Match**: Sapwood → Lighter in color (iv). ### Final Matches: - Early wood → iv (Vessels with wider cavities) - Late wood → i (Has narrow vessels) - Heartwood → ii (Dead elements with highly lignified walls) - Sapwood → iii (Lighter in color) ### Correct Sequence: - The correct matching sequence is: - 1. Early wood → iv - 2. Late wood → i - 3. Heartwood → ii - 4. Sapwood → iii Thus, the correct option is **3124**.
Promotional Banner

Similar Questions

Explore conceptually related problems

Match the following : {:(1.,"Soft wood",(a)" Vessels present"),(2., "Hard wood",(b)" Non-functional"),(3.," Sap wood",(c) "Vessels absent"),(4., "Heart wood",(d)"Functional"):}

Match column I with column II and select the correct option from the given codes {:("Column I","Column II"),(A." Hardwood",(i)." Duramen"),(B." Soft wood",(ii)." Alburnum"),(C." Heartwood",(iii)." Non-porous wood"),(D." sapwood",(iv)." Porous wood"):}

Match column I with column II and select the correct option from the given codes. {:("Column I","Column II"),(A." Vessels",(i)." Cells are living, with thin cellulosic cells walls"),(B." Tracheids",(ii)." Cells possess highly thickened walls with obliterated central lumen"),(C." Xylem fibres",(iii)." Individual members are interconnected through perforations in their common walls"),(D." Xylem parenchyma",(iv)." Elongated tube-like cells with thick, lignified walls and tapering ends"):}

Match column I wth column II and select the correct option from the codes given below {:("Column I","Column II"),(A." Sagopalm",(i)." Ephedra"),(B." Chilgoza fruit",(ii)." Pinus gerardiana"),(C." Ephedrine drug",(iii)." cycas revolute"),(D." Cedar wood oil",(iv)." Juniperus Virginiana"):}

Match the columns : {:(,"Column I " ,, "Column II") , (1., "Cuboidal" , (a) , "Epidermis of skin"), (2., "Ciliated" , (b) , "Inner lining of blood vessels"), (3., "Columnar " , (c), "Inner surface of gall bladder "), (4. , "Squamous" , (d) , "Inner lining of fallopian tube "), (5., "Keratinized" , (e), "Lining of pancreatic dust"):}

Match the column I and column II {:("column-I","Column-II"),(1.Zn,i."Sickle leaf of cocoa"),(2.Cu,ii."Exanthema"),(3.Mo,iii."Scald of beans"),(4.Mn,iv."Marsh spot disease"):}

Match List I with List II and select the correct answer using the codes given below : {:(,"Column - I",,"Column - II"),(A,"Mond's process",1.,"Purification of copper"),(B,"Van Arkel method",2.,"Purification of zinc"),(C,"Cupellation",3.,"Purification of nickel"),(D,"Distillation",4.,"Purification of titanium"):}

Match the following: {:("Column I","Column II"),(1."Boron",i."Solute transport"),(2."Permease",ii."Cytochromes"),(3.Mn,iii."Transmembrane proteins"),(4."iron",iv."photolysis of water"):}

Match the following in column I with column II and choose the correct combination {:(,"Column" I,,"Column" II,),(A.,"Xylem vessels",1,"Store food materials",),(B.,"Xylem trachieds",2,"Obliterated lumen",),(C.,"Xylem fibre",3,"Perforate plates",),(D.,"Xylem parenchyma",4,"Chisel-like ends",):}

Match the column and select the correct option. {:(,"Column - I",,"Column - II"),((1),"Leaf tendril",(i),"Cactus"),((2),"Leaf Spine",(ii),"Pea"),((3),"Stem tendril",(iii),"Bougainvillea"),((4),"Stem thorn",(iv),"Gourds"),(,,(v),"Turmeric"):}