Mineral Nutrition Ch.5

Question 1

Complexes with mannitol,mannan,polymannuronic acid, and other constituents of cell walls. Involved in cell elongation and nucleic acid metabolism

Answer 1

B

Question 2

Essential for both C4 plants and humans but toxic for C3 plants

Answer 2

Sodium (Na)

Question 3

Constituent of amino acids,amides,proteins,nucleic acids,nucleotides,coenzymes,hexoamines…

Answer 3

N

Question 4

Group 1 (Elements)

Answer 4

N,S

Question 5

Constituent of cytochromes and nonheme iron proteins involved in photosynthesis,N2 fixation, and respiration.

Answer 5

Fe

Question 6

Group 3 (Elements)

Answer 6

Mn,Cl,Ca,Mg,Na,K

Question 7

Deposited as amorphous silica in cell walls. Contributes to cell wall mechanical properties, including rigidity and elasticity

Answer 7

Si

Question 8

Required by many enzymes involved in phosphate transfer. Constituent of the chlorophyll molecule

Answer 8

Mg

Question 9

Component of cysteine,cystine,methionine,and proteins. Constituent of lipoic acid,coenzyme A,thiamine pyrophosphate,glutathione,biotin,adenosine-5’-phosphosulfate,and 3-phosphoadenosine

Answer 9

S

Question 10

Group 4 (Elements)

Answer 10

Cu,Zn,Fe,Ni,Mo

Question 11

Component of sugar phosphates,nucleic acids,nucletotides,coenzymes,phospholipids,phytic acid…Has a key role in reactions that involve ATP

Answer 11

P

Question 12

Group 2 (Elements)

Answer 12

B,P,Si

Question 13

Group 3 (Characteristics)

Answer 13

Remain in ionic form

Question 14

Required as a cofactor for more than 40 enzymes. Principal cation in establishing cell turgor and maintaining cell electroneutrality.

Answer 14

K

Question 15

Important for nitrogen fixation but is not required by plants

Answer 15

Cobalt (Co)

Question 16

Required for the photosynthetic reactions involved in O2 evolution

Answer 16

Cl

Question 17

Constituent of the middle lamella of cell walls. Required as a cofactor by some enzymes involved in the hydrolysis of ATP and phospholipids. Acts as a second messenger in metabolic regulation.

Answer 17

Ca

Question 18

Group 1 (Characteristics)

Answer 18

Part of carbon compounds

Question 19

Required for activity of some dehydrogenases,decarboxylases,kinases,oxidases,and peroxidases. Involved with other cation-activated enzymes and photosynthetic O2 evolution.

Answer 19

Mn

Question 20

Constituent of alcohol dehydrogenase,glutamic dehydrogenase,carbonic anhydrase…

Answer 20

Zn

Question 22

Involved with the regeneration of phosphoenolpyruvate in C4 and CAM plants. Substitutes for potassium in some functions

Answer 22

Na

Question 23

Constituent of urease. In N2-fixing bacteria, constituent of hydrogenases.

Answer 23

Ni

Question 24

Component of ascorbic acid oxidase, tyrosinase,monoamine oxidase,uricase,cytochrome oxidase, phenolase,laccase, and plastocyanin

Answer 24

Cu

Question 25

Group 4 (Characteristics)

Answer 25

Involved in redox reactions (involves electron transfer)

Question 26

Constituent of nitrogenase,nitrate reductase,and xanthine dehydrogenase.

Answer 26

Mo

Question 27

Group 2 (Characteristics)

Answer 27

Important in energy storage or structural integrity

Question 27

Mobile elements

Answer 27

Mo,Zn,P,Mg,Cl,N,Na,K

Question 28

Immobile elements

Answer 28

Ca,S,Fe,B,Cu