PLANT GROWTH AND DEVELOPMENT

Question 1

WHAT IS GROWTH?

Answer 1

IT IS THE IRREVERSIBLE PERMANENT INCREASE IN SIZE OF AN ORGAN OR ITS PARTS OR EVEN OF AN INDIVIDUAL CELL

Question 2

GROWTH IS ACCOMPANIED BY METABOLIC PROCESSES BOTH ——— AND ———–

Answer 2

ANABOLIC AND CATABOLIC

Question 3

GROWTH IS REGARDED AS THE FUNDAMENTAL AND CONSPICUOUS CHARACTERISTICS OF A LIVING BEING. TRUE OR FALSE

Answer 3

TRUE

Question 4

PLANT GROWTH IS UNIQUE BECAUSE IT IS ————

Answer 4

UNLIMITED

Question 5

THE MERISTEM CELLS WHICH LOSE THE ABILITY TO DIVIDE THEN DIFFERENTIATE INTO ——–

Answer 5

PERMANENT CELLS

Question 6

THE CELLS WHICH LOSE THE ABILITY TO DIVIDE TENDS TO MAKE THE ——-

Answer 6

PLANT BODY

Question 7

WHAT IS KNONW AS OPEN FORM OF GROWTH?

Answer 7

IT IS THE GROWTH WHEREIN NEW CELLS ARE ALWAYS BEING ADDED TO THE PLANT BODY BY THE ACTIVITY OF MERISTEM

Question 8

APICAL MERISTEM IS RESPONSIBLE FOR PRIMARY OR SECONDARY GROWTH?

Answer 8

PRIMARY GROWTH

Question 9

APICAL MERISTEM IS RESPONSIBLE FOR

Answer 9

ELONGATION OF PLANTS ALONG THEIR AXIS

Question 10

THE MERISTEMS WHICH INCREASE THE GIRTH OF THE PLANTS

Answer 10

VASCULAR CAMBIUM AND CORK CAMBIUM

Question 11

VASCULAR CAMBIUM AND CORK CAMBIUM IS PRESENT IN ——— AND ——-

Answer 11

GYMNOSPERM AND ANGIOSPERM

Question 12

THE INCREASE IN GIRTH IS KNOWN AS PRIMARY OR SECONDARY GROWTH

Answer 12

SECONDARY GROWTH

Question 13

GROWTH AT A CELLULAR LEVEL SIMPLY MEANS

Answer 13

INCREASE IN THE AMOUNT OF PROTOPLASM

Question 14

GROWTH MEASURING PARAMETERS

Answer 14

INCREASE IN FRESH WEIGHT 
DRY WEIGHT 
LENGTH 
AREA 
VOLUME 
CELL NUMBER

Question 15

ONE SINGLE MAIZE ROOT APICAL MERISTEM CAN GIVE RISE TO MORE THAN ——-

Answer 15

17,500 NEW CELLS PER HOUR

Question 16

CELLS IN A WATERMELON CAN INCREASE IN SIZE UP TO

Answer 16

3,50,00

Question 17

DORSIVENTRAL LEAF IS FOUND IN WHICH TYPE OF PLANTS

Answer 17

DICOT PLANTS

Question 18

THE PERIOD OF GROWTH IS DIVIDED INTO HOW MANY PHASES?

Answer 18

THREE PHASES
MERISTEMATIC
ELONGATION
MATURATION

Question 19

THE CONSTANTLY DIVIDING CELLS IN THE ROOT AND SHOOT APEX REPRESENT THE

Answer 19

MERISTEMATIC PHASE OF GROWTH

Question 20

CHARACTERISTICS OF THE CELLS IN THE MERISTEMATIC REGION

Answer 20

• RICH IN PROTOPLASM
• POSSESS LARGE CONSPICUOUS NUCLEI
• CELL WALLS ARE PRIMARY AND THIN AND CELLULOSIC WITH ABUNDANT PLASMODESMATAL CONNECTIONS

Question 21

CELLS PROXIMAL TO THE REGION OF MERISTEMATIC ACTIVITY REPRESENTS THE REGION OF

Answer 21

ELONGATION

Question 22

CHARACTERISTICS OF THE CELLS OF THE REGION OF ELONGATION

Answer 22

INCREASED VACUOLATION
CELL ENLARGEMENT
NEW CELL WALL DEPOSITION

Question 23

PROXIMAL TO THE REGION OF THE REGION OF ELONGATION LIES THE REGION OF

Answer 23

MATURATION

Question 24

CHARACTERISTIC OF THE CELLS OF THE REGION OF MATURATION

Answer 24

THE CELLS ARE UNDERGOING MATURATION

CELLS ATTAIN THEIR MAXIMAL SIZE IN TERMS OF CELL WALL THICKENING AND PROTOPLASMIC MODIFICATIONS

Question 25

INCREASED GROWTH PER UNIT IS TERMED AS

Answer 25

GROWTH RATE

Question 26

WHAT ARE THE TWO TYPES OF GROWTH RATE SHOWN BY THE PLANTS?

Answer 26

GEOMETRIC AND ARITHMETIC

Question 27

WHAT HAPPENS IN ARITHMETIC GROWTH?

Answer 27

FOLLOWING MITOTIC DIVSION, ONLY ONE DAUGHTER CELL DIVIDES WHILE OTHER DIFFERENTIATES AND MATURES AND LOSES THE CAPACITY TO DIVIDE

Question 28

GRAPH OF ARITHMETIC GROWTH IS

Answer 28

LINEAR SHAPE

Question 29

GRAPH OF GEOMETRIC GROWTH

Answer 29

SIGMOID SHAPE | S SHAPED CURVE

Question 30

GEOMETRICAL GROWTH PHASES

Answer 30

INITIAL GROWTH IS SLOW - LAG PHASE INCREASES RAPIDLY - LOG OR EXPONENTIAL PHASE STATIONARY PHASE - LIMITED NUTRIENT SUPPLY

Question 31

IN GEOMETRIC GROWTH HOW MANY DAUGHTER CELLS ARE CAPABLE OF DIVISION

Answer 31

ALL THE DAUGHTER CELLS FORMED ARE CAPABLE OF DIVISION

Question 32

WHAT DOES 'r' REPRESENT IN THE GEOMETRIC GROWTH EQUATION

Answer 32

RELATIVE GROWTH RATE | IT IS ALSO THE MEASURE OF THE PLANT TO PRODUCE NEW PLANT MATERIAL, REFERRED TO AS EFFICIENCY PERIOD

Question 33

QUANTITATIVE COMPARISONS OF GROWTH CAN BE MADE ON TWO BASIS

Answer 33

ABSOLUTE GROWTH RATE | RELATIVE GROWTH RATE

Question 34

WHAT IS ABSOLUTE GROWTH RATE?

Answer 34

MEASUREMENT AND THE COMPARISON OF TOTAL GROWTH PER UNIT TIME

Question 35

WHAT IS RELATIVE GROWTH RATE?

Answer 35

GROWTH OF GIVEN SYSTEM PER UNIT TIME EXPRESSED ON A COMMON BASIS

Question 36

ABIOTIC FACTORS REQUIRED BY THE PLANTS FOR OPTIMAL GROWTH

Answer 36

WATER OXYGEN NUTRIENTS OPTIMUM TEMPERATURE

Question 37

WATER IS REQUIRED BY THE PLANTS FOR

Answer 37

TURGIDITY OF THE CELLS | PROVIDING A MEDIUM FOR THE ENZYMATIC ACTIVITIES

Question 38

ROLE OF OXYGEN

Answer 38

HELPS IN RELEASING METABOLIC ENERGY ESSENTIAL FOR GROWTH ACTIVITIES

Question 39

THE PHENOMENON LEADING TO THE CELLS TO MATURE AND DIFFERENTIATE IS KNOWN AS

Answer 39

DIFFERENTIATION

Question 40

DURING THE PROCESS OF DIFFERENTIATION, THE PLANT CELL WALL CONVERTS FROM --------- INTO ---------

Answer 40

CELLULOSE PRIMARY CELL WALL INTO LIGNOCELLULOSIC SECONDARY CELL WALL

Question 41

THE DIFFERENTIATED CELLS DO NOT HAVE THE PROPERTY OF ---------

Answer 41

DIVIDING

Question 42

THE DIFFERENTIATED CELLS CAN REGAIN THE CAPACITY TO DIVIDE, THIS PROCESS IS KNOWN AS -------

Answer 42

DEDIFFERENTIATION

Question 43

EXAMPLE OF DIFFERENTIATION

Answer 43

FORMATION OF INTERFASCICULAR CAMBIUM AND CORK CAMBIUM FROM FULLY DIFFERENTIATED PARENCHYMATIC CELLS

Question 44

THE PHENOMENON WHEN THE CELLS WHICH REGAINED THE PROPERTY OF DIVISION NOW AGAIN LOSES THE PROPERTY OF DIVISION IS KNOWN AS

Answer 44

REDIFFERENTIATION

Question 45

GROWTH IN PLANTS IS OPEN WHICH MEANS IT CAN BE

Answer 45

INDETERMINATE - INFINITE | DETERMINATE - FINITE

Question 46

FINAL STRUCTURE OF A CELL AT MATURITY IS ALSO DETERMINED BY THE LOCATION OF THE CELL. TRUE OR FALSE

Answer 46

TRUE