xi botany chapterwise prvs questions hsslive

8/20/2019 XI Botany ChapterWise Prvs Questions Hsslive

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Chapter 1

Biological Classification

1.Identify the statement which is applicable to cyanobacteria

a)

Important decomposers

b)

Forms blooms in polluted water

c)

Presence of prominent pigment

d)

Completely lack cell wall

2.observe the relationship between the first pair and fill up the blanks using appropriate terms

a)

Carolus innaeus ! "wo kingdom classification

#.$ %hittaker ! &&&&&&&&&.

b)

"hermoacidophiles ! '(treme heat

$alophiles ! &&&&&&&&&..

.*+iatoms the chief producers of the ocean are useful to us even after their death, . 'valuate the

statement

-.Fill up the second pair by observing the relationship of the first pair

a)

onera ! Prokaryote

Protista ! &&&&&&&&..

b)

/acteria live in e(treme marshy area ! ethanogens

/acteria live in e(treme salty area ! &&&&&&&&&.

c)

0ssociation of fungus with algae ! ichens

0ssociation of fungus with root of plants ! &&&&&.

.#amu decided to construct a biogas plant in his home due to the recent hike in the coast of cooking

gas. ame the group of bacteria involved in this process3

4.ichens are the symbiotic association with of algae and fungi

a)

%hat is symbiosis3

b)

5tate the economic importance of lichens3

6.Five kingdom arrangement of organism was given by #.$ %hittaker. 5tate the criteria followed by

%hittaker for his classification.

7.5lime moulds grow in damp places

a)

ame the vegetative part of the thallus

b)

8ive an e(ample of slime mould


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9.*:iruses are called the biological pu;;le, . comment

1uate3


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Chapter 2

PLANT KINGDO

1.8ive reason for the following

a)

/ryophytes are called the amphibians of the plant kingdom

b)

Fertili;ation in angiosperm is known as double fertili;ation

2. ost pteridophytes are homosporous but there are e(ceptions

a)

Identify two hetrosporous genera

b)

$eterospory is a precursor to the seed habit. Point out any one common character found in

heterospory and seed habit

. 'ven though algae are primary producers in a>uatic ecosystem? man is benefited by algae in variety of

ways. %rite any four paints in favour of this statement.

-.write the name of the stored food of algal classes in the table given below

Class 5tored food

Phaeophyceae

#hodophyceae

. Plants with haplontic life cycle include dominant gametophyte while in diplontic life cycle sporophyte

is the dominant phase . name the type of cell cycle that is intermediate between the two.

4. write any three distinguishable character of bryophytes3

6.Fill up the second pair by observing the relationship of the first pair

Cycas ! Corolloid root

Pinus ! &&&&&&&

7.match the following

0 /

0lgae aked seeded plant

Pteridophyte 0mphibians of the plant kingdom

8ymnosperm Flowering plants

0ngiosperm "halloid body? photosynthetic and mainly a>uatic

/ryophyte Independent sporophytic and gametophytic phase

commonly called ferns

9. 5e>uoia is the tallest plant in the world.

a)

ame the plant group

b)

%rite any two salient features of the plant group


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Chapter 3

1."he following diagram represe

a) identify the family.

b) write the floral formula of th

2. ormally roots grow into the

ground and grow vertically upw

. Abserve the floral diagram an

a) ame the family

b) %rite the nature of stamen

-. "he following figure show tw

a) Identify 0 and /

b) $ow will you distinguish 0 an

orpholog" of flo#ering plants

nts five petals of a plant belonging to a ma@or fa

flower

soil. /ut in some plants like #hi;ophora many ro

rds. %hat are these roots called38ive their fun

d answer the following >uestions

types of aestivation . 0nswer the following >ue

d /

mily

ots come out of the

ction3

stions.


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.Abserve the diagram 0 and / and Identify the placentation

6. In cactus both stem and leaves are modified to perform different function. ame the modifications

and identify their function


a) cucmber ! "endril

Citrus ! &&&&&&&&

9. Floral formula of a pea plant is given below. 8ive the important floral characters of the plant using the

floral formula

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b) Identify the types of the arrangement of petals shown in the following diagrams

1. #espiratory roots in #hi;ophora is called &&&&&&..

1-. 0rrangement of flowers on the peduncle varies depending upon the nature and branching of the

peduncle. Can you substantiate your answer with suitable e(amples

1. Identify the region 0 marked in the figure and write down its function

14. "he rhi;ome of ginger is found underground . /ut it is not a root. 8ive reason

16. "echnical name of fruit of mango and coconut is called &&&&..


ango ! esocarp

Coconut ! &&&&&..


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Chapter !

Anato'" of flo#ering plants

1.atch the following column 0 and /

0 /

Companion cells 5tomata

enticels Chlorophyll bearing cells

/ulliform cells Casparian strips

5ubsidiary cells Present between (ylem and phloem

esophyll cells Phloem tissue

'ndodermal cells 'mpty colourless cells

'(change of gases

2. "wo types of plant specimens were given to students for microscopical observation. "hey were

directed to note down the features they observed. a@or features noted by students were summari;ed

in the bo( below

a)

#adial vascular bundle and are 2< in number

b)

Collateral vascular bundle arranged in the form of a ring and vascular bundles are few in number

c)

ylem round in shape

d)

Cambium present between (ylem and phloem

e)

ylem is e(archf)

ylem is endarch

a)ame the two specimen

b)5ubstantiate your answer by picking up the features of specimens from the bo( and write them in two

columns

. In the anatomy lab? 'ugin observed the following features in the ".5 of plant part

a)

#adial and polyarch (ylem bundles

b)

Parenchymatous Dhomogenous) corte(

c)

arge pith

d)

'pidermis with unicellular hairs

e)

Pericycle

f)

'ndodermis with casparian strips

a)Identify the plant part

b)#earrange the given regions from the periphery to the center in their correct se>uence

c) 8ive an account of casparian strips


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-. Imagine that you and your father are visiting a timber shop to buy wood for making furniture. "imber

shop owner suggested rosewood. Father seeks your help to determine the age of the wood

a)

0s a botany student can you help your father3

b)

Eustify your answer

.+icot plants show secondary growth in their stem and root

a)

ame the meristem that cause secondary growth in vascular region and corte(

b)

Comment on the activity of this meristem

4. 5ome tissue in plants are not able to divide further

a)

5uggest name for such tissue

b)

8ive any three e(amplesc)

ist the difference between epidermal tissue system of roots and leaves

6.0nalyse the given statement and correct the false statement with respect to the underlined line

a)

In roots? vascular tissue are con)oint

b)

Cork cambium is otherwise called phello*er'

7. In an anatomy lab #amu and 5alim were taking transverse section of two specimen? 0 and /

respectively. "heir observations are given in the table . Complete the table

5pecimen 0 5pecimen /Closed vascular bundle Apen vascular bundle

9. 8rasses are capable of regeneration in spite of continuous gra;ing by cattle. 5uggest the reason for

this.

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1. a) Abserve the diagrams and identify the tissue types

b) Eustify your answer

1-.:ascular bundles in monocot root is polyarch and he(arch radial. In dicot it is &&&&&.

1.In woody trees secondary growth takesplace in stelar and e(tra stelar region. Comment on e(tra

stelar secondary growth

14. +iagrammatic representation of vascular bundles are given

a)

+istinguish a and b

b)

5tate reason

16.food in plants is transported from leaves to other parts of the plant body. %hich is the tissue that dothis function3 %hat are its elements3

17. 0nalyse the table and arrange the matter in an appropriate order

0 / C

onocot stem /ulliform cells Casparian strips

+icot stem #adial Proto(ylem lacunae

Isobilateral leaf Closed 5econdary thickening

+icot root Apen 'pidermis

19.$ow do you correlate the activity of cambium with changing seasons3

2


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Chapter $

Cell the -nit of life

1.5tate whether the statement is true or false . if false correct the statement by changing the underlined

words

a. 0leuroplast store car/oh"*rate

b)

"he centrioles forms the basal body of cilia and flagella

c)

#ibosomes are not s-rro-n*e* /" 'e'/ranes

d) 00 is the ma@or site for synthesis of lipids

2.Prokaryotic cells posses a special membranous structure which is formed by the e(tension of the

plasma membrane in the form of vesicles? tubules ? and lamellae . Identify the structures and write anyone of its functions

."he diagram a?b? and c given below shows three kinds of chromosomes. Af this? which is metacentric

non satellite chromosome. Eustify your answer

-.0n accepted model of the structure of a cell membrane was proposed by 5inger and icolson

a)

ame the model

b)

ist the two ma@or biomolecule which this membrane is composed of.

c)

ention two important points of this model from the point of view of function

.Abserve the given relation and fill in the blanks

a)

Plumule ! Coleoptile

#adicle ! &&&&&&&.b)

5tarch ! 0myloplast

Fat ! &&&&&&&

4."he following is the list of cell organelles

Dnucleus? endoplasmic reticulum? lysosomes? chloroplast? golgi comple(? mitochondria? ribosome)

a)

Identify the organelle with double membrane envelope

b)

ention the function of these organelle


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6.

a)

Identify the cell organelle found both in eukaryote and prokaryote

b)

Eustify its presence in both types of cells

7.atch the following

0 /

5ynthesis and storage of energy 8olgi apparatus

Packaging and delivery of material itochondria

+igestion of intercellular material Centriole

Formation of basal body of cilia and flagella ysosome

chloroplast

9.given below are the diagrams of two chromosomes

a) identify the chromosome type D1) and D2)

b) write the peculiarity of chromosomes.

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Chapter %

Cell c"cle

1.prophase of the first meiotic division is typically longer and comple(. It has been further subdivided

into five phases. "he ma@or events of these sub stages are given below

a) Pairing of homologous chromosomes.

b) terminali;ation of chiasmata

c) Accurs crossing over

d) Chromosome are visible under a light microscope

e) Formation of chiasmata

i.

Identify the stages a?b?c?d and e

ii.

0rrange these stages in correct order of occurrence

2.observe the following phases of nuclear division during mitosis and answer the following >uestions

a) name the two phases 0 and /

b) identify the main events occurring in these two stages

. 0 diagrammatic view of a cell cycle is given below


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a) identify the phase in which

i.

+0 synthesis takesplace

ii.

Chromosomes are arranged at the e>uator of the spindle

b)ention two significant point of mitosis in the life of an organism

-. Abserve the diagram given below representing a stage of mitosis

a)

Identify the stage

b)

+istinguish it from corresponding stage of meiosis1

c)

ention the role of spindle fibres in mitosis

.observe the given diagram of cell division

a)

Identify the stage

b)

abel the parts 0 and /

c)

ention any one peculiarity of the pachytene stage of meiosis

4.the following are some of the important events in mitotic cell division. ention the stages of mitosis

during which these events happen

a)

Centromere split and chromatids separate

b)

Chromosomal material condenses to form compact mitotic chromosomes

6.%hat is a >uiescent stage3

7.mention the importance of crossing over


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9. while studying the stages of meiosis? Prakash observed the following features at one stage

a)

/ivalent chromosomes clearly appear as tetrads

b)

Presence of recombination nodules

Identify the stage

1uator

of the cell

a)

Identify the stage

b)

%rite the other key feature of this stage

11.In the laboratory? the teacher asked you to identify the mitotic stage anaphase in the given slide.

%rite the characteristic features that help you to identify this stage

12.Choose the most appropriate answer and fill in the blanks

1.Interphase in cell cycle is sometimes referred to as resting phase. +o you consider this statement

true3 5ubstantiate your answer.

1-.ife cycle of a cell is called cell cycle. It consist of four stages such as 81 ?5? 82 and phase

a)

Construct a pie diagram showing the different stages indicated above

b)

5tate the ma@or events occurring in as 81 ?5? and 82 phases


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Chapter &

Transport in plants

1.atch the following

0 /

0poplast Phloem transport

"ranspiration 5emipermeable membrane

ass flow hypothesis Cell wall

Asmosis stomata

2.suggest reason for the following

a)

In tomato plants drop of water are seen along leaf margins in the morning

b)

Farmers remove leaves of banana plants before planting

. three potato pieces of e>ual weight D2g) were left in three types of solutions D0?/ and C) over night?

the weight change of potato pieces are as shown in the figure

a) identify the solution 0 and C

b)discuss the reason for not having any change in the piece put in the solution /


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chapter (

'ineral n-trition

1.If you cut through the root nodules of a pea plant? you will notice that the central portion is red or pink

a)

%hat makes the nodule pink3

b)

ention the role of this pink pigment

2.the deficiency symptom of macro elements like calcium tend to appear first in young tissue. %hy3

.0mmonia is first o(idi;ed to nitrite and the nitrite is further o(idi;ed to nitrate. ame the process.

8ive any one e(ample of a bacterium which is involved in this process

-.itrogen in the atmosphere e(ist as 2 . /ut it cannot be absorbed by plants as such. 5o it is converted

into ammonia D$) by microorganism and get fi(ed in the soil

a)

ame the en;yme in the microorganism which help to convert nitrogen into ammonia

b)

%hat is the role of leg hemoglobin in this process

.Chlorophyll contain a metallic element

a)

ame the metallic element

b)

ention any one deficiency symptom of that element

4. /otany teacher brought a diseased plant in the classroom. ano@ identified the pathogen as a virus.Can you list any two symptoms of diseases? that helped him to identify the pathogen3

6.G Bnlike water ? all minerals cannot be passively absorbed by roots H . %rite any two reasons to @ustify

the above statement

7. Protein in the membrane are responsible for facilitated diffusion and active transport and hence both

show common characteristics. ist any two such characteristics

9. H In a plant the deficiency of 2 is visible in older parts and that of Ca is visible in younger partsG .

Critically evaluate this statement.

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12.Abserve the diagram and answer the following

a)

"his is a peculiar type of plant cultivation. ame it

b)

0eration is necessary for the conduct of this type of cultivation. %hy3


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CHAPTER 9

PHOTOSYNTHESIS IN HIGHER PLANTS

1.Plants that are adapted to dry tropical regions have a special type of co2 fi(ation In addition to the c

cycle.

a)

ame this pathway3

b)

Can you identify any specialty in the leaf anatomy of such plants3 If so? what is this anatomy

called3

c)

%hich is the primary co2 acceptor in this pathway3

d)

%rite any one advantage of such plants over c plants3

2."he use of c1- by elvin Calvin in algal photosynthesis studies led to the discovery of co2 fi(ation ingreen plants.

a)

Identify the first stable product in this co2 fi(ation cycle3

b)

%hich are the main stages in this cycle3

c)

ame the en;yme which cataly;es the first stage of this cycle3

d)

%ork out how many 0"P and 0+P$ molecules will be re>uired to make one molecule of

glucose.

.ight reaction of photosynthesis is divided into two processes. In one process the electron emitted will

return to the place from where it is emitted.

a)

%hat are the name of these two processes

b)

%hat happens to the electrons in the second phase

c)

'(plain it with schematic representation

-.#u/isCA is an en;yme that cataly;es two entirely different processes

a)

%hich are the processes

b)

In which process the chloroplast alone is used as cell organelle3

c)

abel the parts 0?/?C? + of the given diagram.


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.C- plants are adapted to overcome a wasteful process found in c plants and hence productivity and

yields are better in these plants.

a)

ame the wasteful process found in c plants3

b)

Identify the cells involved in the c- pathway3

c)

%rite any two differences between c plants and c- plants

4.ight reaction is otherwise is called phosphorylation

a)

Eustify the statement

b)

ocate the site of this reaction

c)

%rite any two differences between cyclic photophosphorylation and noncyclic

photophosphorylation

6.ight reaction and dark reaction are the two stages of photosynthesis

a)

%here does the light reaction occur3

b)

%hat are its product3

c)

Comment on their roles in dark reaction

7.Photorespiration is a curse to plants

a)

'valuate this statement3

b)

Find the reason for this event to takes place3

9.+uring photosynthetic co2 fi(ation certain plants produce P80 as first stable product. ame suchplants3 %ho reported the pathway3 %hat is the en;yme for the carbo(ylation3 ame the molecule

which accept co2 in such plants

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Chapter 1,

0espiration in Plants

1.0naerobic respiration is also occurs in animal cells. 5uggest an occasion for this

2.8lycolysis is present in all organism and it is the only process of respiration in anaerobic organism.

a)

%hat is glycolysis3

b)

%here does glycolysis occur3

c)

8lycolysis is a partial o(idation. Eustify

d)

Calculate the number of 0"P molecules synthesi;ed in glycolysis by the partial o(idation of one

molecule of glucose

.A(idative phosphorylation is an important event in cellular respiration

a)

%hich organelle is associated with this process3

b)

ame the phase of cellular respiration that is common to both aerobic and anaerobic condition

c)

+raw the schematic representation of that phase

-.+uring terminal o(idation electrons in the hydrogen atoms are transported to the o(ygen through a

series of electron carriers in '"5. "he electron carriers are given below

F? F0+? Bbi>uinone? Fe5? cyt a? cyt b? cyt c? cyt a etc

a)

/riefly e(plain the '"5 with schematic representation

b)

%here does '"5 occur3

./reakdown of glucose in respiration is listed under glycolysis and rebGs cycle

a)

ocate the site of glycolysis and rebGs cycle in the cell

b)

8lycolysis is a partial o(idation process. Eustify

4.0nalyse the given statement and correct them with respect to the underlined words

a)

#espiration is an anabolic pathway

b)

"he site of perception of light by a plant for a photoperiodic response is a flower

6.0erobic respiration and anaerobic respiration starts with a common pathway. Identify the pathway

and its end product.


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7.Abserve the illustration given below and answer the following >uestions.

a)

Identify the cyclic pathway

b)

%here does it occur

c)

Identify the steps of this pathway in which decarbo(ylation takes place

9.observe the given figure and answer the >uestions

a)

Identify the cycle and name the scientist who traced this pathwayb)

Complete the cycle by filling 0?/?C and + in the bo(es

c)

$ow many 0+$ and F0+$2 are yielded during the complete o(idation of one molecule of

pyruvate by this pathway3

1uestions

a)

Identify this pathway common for both aerobic and anaerobic respiration

b)

Complete the scheme by filling the bo(es 0?/?C and +


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c)

ention the three ma@or ways in which different cells handle pyruvic acid produced by this

pathway

11."he "C0 cycle starts with the condensation od acetyl group with A00 and water to yield citric acid.

a)

ame the en;yme cataly;ing the reaction

b)

$ow many 0+$J$J molecules are produced in "C0 cycle3

c)

$ow many F0+$2 molecules are produced3

d)

$ow many 0"P molecules are produced3

12.8lycolysis and rebs cycle are the two important steps in aerobic respiration. 5uggest where e(actly

in the cell these events takes place

1.Plants are living organism respiring @ust like an animals? taking in o(ygen and giving out carbon

dio(ide. /ut they are without any organ for this purpose. ention any two reason for it

1-.5uggest a method for finding out the biochemical compound used as the respiratory substrate in

plants.

1.Plants respire using glucose as the substrate

a)

ame the two types of respiration

b)

0mong the two types? which one is more efficient3 Critically evaluate

14.Plant physiologists observed a relationship between respiration and salt absorption. Is absorption of

salt increased due to respiration3 '(plain


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Chapter 11

Plant gro#th an* *eelop'ent

1./y observing the relationship of the first pair? fill in the blanks of the second pair

a)

F.% %ent ! 0u(ins

'. urosawa ! &&&&&&

b)

0u(ins ! 0pical dominance

&&&& ! Avercome 0pical dominance

2.which one of the plant growth regulators would you use if you are asked to do the following

processes3

a)

Induce parthenocarpy

b)

Kuickly ripen a fruit

c)

Induce immediate stomatal closure in leaves

d)

"o increase the length of grape stalks

.8iven are certain physiological effects. ame the plant hormone responsible for it

a)

Increase stem length

b)

0pical dominance

c)

Closure of stomata

d)

#ipening of fruitse)

/olting

f)

0ctive cell division

-.atch the following

0 /

0u(in Fruit ripening

8ibberellins 5tomatal closure

Cytokinins #oot initiation

'thylene bolting

Avercome 0pical dominance

./ased on the relationship fill in the blanks

a)

Cell division ! Cytokinins

/olting ! &&&&&..


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4.5uggest the correct scientific terms for the following

a)

Flowering on e(posure to low temperature

b)

0lgal partner in lichens

6.0rtificial phytohormones are widely used in agriculture

a)

ame any two artificial phytohormones

b)

ention their roles in agriculture

7.8iven below is the growth curve of a plant. Abserve it and answer the >uestions

a)

ame the growth curve

b)

abel 0 and C phase of growth in the growth curve

c)

%hen the tip of Cassava plant is lost? a number of lateral branches grow from the nodes below.

'(plain this phenomenon and specify the hormone responsible for this phenomenon

9.5ome wheat varieties are sown in the spring season and some are sown in the autumn season.

ention the physiological phenomenon responsible for it

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11.8rowth pattern of plant is displayed in the graph. 0nalyse the figure and answer the following

>uestions

a)

%hat kind of growth form is this3

b)

%hy does the graph show a decline to a near constant levels3

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