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STRUCTURE AND PHYSIOLOGICAL FUNCTIONS OF PLANTS

Winmeen WinmeenAugust 30, 2018
0 354 Less than a minute

Unit – I STRUCTURE AND PHYSIOLOGICAL FUNCTIONS OF PLANTS - BIOLOGY

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Question 1
A plant cell differs from an animal cell in the presence of …………….
A
cell membrane
B
endoplasmic recticulam
C
plasma membrane
D
cell wall
Question 2
…….. is the seat of biological oxidations.
A
Endoplasmic recticulam
B
ATP
C
Mitochondria
D
Golgi complex
Question 3
A parasitic plant is ………….
A
mushroom
B
mucor
C
cuscuta
D
yeast
Question 4
The loss of water from the aerial parts of the plant is known as  ………………
A
photosynthesis
B
transpiration
C
reproduction
D
respiration
Question 5
The movement of a plant part in response to light is called ……………..
A
geotropism
B
hydrotropism
C
phototropism
D
thigmotropism
Question 6
Mimosa pudica displays ………… movement.
A
phototropic
B
photonastic
C
thigmonastic
D
thermonastic
Question 7
………… transpiration accounts for the loss of large volumes of water.
A
Lenticular
B
Stomatal
C
Cuticular
D
Areolar
Question 8
……….. is mainly concerned with the transport of nutrients, water and minerals upwards in the plant body.
A
Phloem
B
Xylem
C
Tracheids
D
Parenchyma
Question 9
The cells of ……….. are polygonal in cross – section and have unevenly thickened walls.
A
parenchyma
B
collenchyma
C
aerenchyma
D
selerenchyma
Question 10
The study of the structure and function of the cell is called …………….
A
Botony
B
Cytology
C
Microbiology
D
Bio Technology
Question 11
Cells having dense cytoplasm and large nucleus are called ………………..
A
simple tissue
B
compound tissue
C
meristamatic tissue
D
permanent tissue
Question 12
Find which one of the following is dead tissue.
A
Parenchyma
B
Collenchyma
C
Sclerenchyma
D
Chlorenchyma
Question 13
Which one of the following is the Xylem tissue?
A
sieve elements
B
companion cells
C
phloem fibres
D
Tracheids
Question 14
Which part helps the plant absorb water and minerals from the soil?
A
root hairs
B
roots
C
root cap
D
tap root
Question 15
Which is shown by the experiment ‘Ascent of sap’?
A
The food materials are transmitted by phloem
B
Water is transmitted by phloem
C
Water is transmitted by xylem
D
The food material is transmitted by xylem
Question 16
Find out which one is not related to leaves.
A
Photosynthesis
B
Respiration
C
Transpiration
D
Transportation
Question 17
Find which one of the following does anaerobic respiration?
A
flies
B
mosquito
C
yeast
D
hydrilla
Question 18
This is an example of chemo autotrophs ………….
A
green sulphur bacteria
B
bacillus subtillus
C
Nitrosomonas bacteria
D
purple sulphur bacteria
Question 19
This is an example of insectivorous plant.
A
Monotropa
B
Cuscuta
C
Drosera
D
Hibiscus
Question 20
Find the one that is not doing symblotic nutrition.
A
Lichen
B
Mycorrhiza
C
Mucor
D
Phizobium
Question 21
Plants take CO2 duting
A
Transpiration
B
Protein synthesis
C
Respiration
D
Photosynthesis
Question 22
In Photosynthesis
A
H2O and CO2 are reduced
B
H2O is reduced and CO2 is oxidized
C
H2O and CO2 are oxidized
D
H2O is oxidized and CO2 is reduced
Question 23
Aerobic and anaerobic respirations differ from each other in all aspects except ………
A
Involvement of oxygen
B
output of energy
C
end products
D
break down of glucose in cytoplasm
Question 24
Find put the correct sequence of the following in the decreasing order of rate of transpiration.
A
Stomatal – Cuticular – lenticular
B
Cuticular – Lenticular – Stomatal
C
Lenticular- Stomatal – Cuticular
D
Stomatal – Lenticular – Cuticular
Question 25
The study of the structure and function of cells.
A
Zoology
B
Biology
C
Cytology
D
Physiology
Question 26
The cells of this tissue are capable of division.
A
Permanent tissue
B
Xylem
C
Meristematic tissue
D
Sclerenchyma tissue
Question 27
…….. is a dead tissue with thick walls.
A
Parenchyma
B
Collenchyma
C
Phloem
D
Sclerenchyma
Question 28
…………. Conducts water.
A
Phloem
B
Sieve tube
C
Xylem
D
Companion cell
Question 29
………… involves movement of molecules by the use of metabolic energy.
A
Osmosis
B
Active transport
C
Passive transport
D
Imbibition
Question 30
………… conducts food.
A
Collenchyma
B
Xylem
C
Sclerenchyma
D
Phloem
Question 31
…………. is  not a factor which influences photosynthesis.
A
Carbon dioxide
B
Chlorophyll
C
Oxygen
D
Water
Question 32
The transport of food from leaves to the other parts of the plant is called ………….
A
Photosynthesis
B
Transpiration
C
Nutrition
D
Translocation
Question 33
………… is the seat of biological oxidation.
A
Mitochondrion
B
Stomatal pore
C
Leaf
D
ATP
Question 34
An example for photo autotrophs.
A
Nitrosomonas
B
Animals
C
Fungus
D
Sulphur bacteria
Question 35
……….. is an example for parasites.
A
Cuscuta
B
Linchen
C
Mitrosomonas
D
Mucor
Question 36
………… is an example for symbionts.
A
Nitrosomonas
B
Fungus
C
Xanthomonascitri
D
Lichen
Question 37
Transportation take place through …………
A
Stem
B
Leaves
C
Root
D
Flowers
Question 38
…….. is an example for chemo autotrophs.
A
green sulphur bacteria
B
Plam
C
Purple sulphur bacteria
D
Nitrosomonas
Question 39
In the dark reaction carbondioxide is reduced to …………
A
Carbon
B
Carbon monoxide
C
ATP
D
Carbohydrate
Question 40
………… is an example for insectivorous plants.
A
Lichen
B
Cuscuta
C
Sepenthes
D
Mucor
Question 41
Mimosa pudica is an example for …………
A
Thigmotropism
B
Photonasty
C
Thigmonasty
D
Thermonary
Question 42
…………. Are heterotrophs.
A
Animals
B
Green plants
C
Nitrosomonas bacteria
D
Sulphur bacteria
Question 43
………. Is a living tissue.
A
Parenchyma
B
Sclerenchyma
Question 44
…… ….. conducts water.
A
Xylem
B
Phloem
Question 45
Co2 is reduced to carbohydrate during ………………
A
Light reaction
B
Dark reaction
Question 46
Food is completely oxidized in …………… respiration.
A
Anaerobic
B
Aerobic
Question 47
Organisms which are not able to synthesize their own food are called …………..
A
autotrophs
B
heterotrophs
Question 48
Removal of excess water through aerial parts of the plant like leaves is called ………..
A
Transpiration
B
Translocation
Question 49
  • Assertion (A) : Apical meristem brings about increase in the width.
  •     Reason (R)     : Intercalary meristem helps in the elongation of the intermodes.
A
A is correct, R is wrong
B
A is wrong, R is correct
C
Both A and R are wrong
D
A is correct R Explains A
Question 50
  • Assertion (A)  : Meristematic cells help in increasing the length and thickness of the plant.
  •     Reason (R)     : These cells divide continuously.
A
A is correct, R is wrong
B
A is wrong, R is correct
C
A is correct R explains A
D
R does not explain A
Question 51
  • Assertion (A) : Phloem conducts food materials.
  •     Reason (R)     : Xylem conducts water.
A
A is correct, R is wrong
B
A is wrong, R is correct
C
A is correct, R Explains A
D
R does not explain A
Question 52
  • Assertion (A)  : Green plants are autotrophic.
  • Reason (R)          : Green plants synthesize their food.
A
A is correct, R is wrong
B
A is wrong, R is correct
C
A is correct, R Explains A
D
R does not explain A
Question 53
  • Assertion (A)   : If the direction of response is determined by the direction of stimulus, it is called nastic    movement.
  •    Reason (R)        : Osmosis is an example for active transport.
A
A is correct, R is wrong
B
A is wrong, R is correct
C
A is correct, R Explains A
D
Both A and R are wrong
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Winmeen WinmeenAugust 30, 2018
0 354 Less than a minute
Winmeen

Winmeen

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