MCQ Questions for Class 11 Biology Chapter 13 Photosynthesis in Higher Plants with Answers

Solving the Photosynthesis in Higher Plants Multiple Choice Questions of Class 11 Biology Chapter 13 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Photosynthesis in Higher Plants Class 11 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 13 Biology Class 11 and cross-check your answers during preparation.

I. Select the correct answer from the following questions:

Question 1.
Kranz anatomy is found in or is typical of
(a) C3 plants
(b) C4 plants
(c) C2 plants
(d) Succulents (CAM Plants)

Answer

Answer: (b) C4 plants


Question 2.
A cell that lacks chloroplast does not
(a) Utlize carbohydrates
(b) Evolve carbon dioxide
(c) Require water
(d) Liberate oxygen

Answer

Answer: (d) Liberate oxygen


Question 3.
Energy is transformed from the light reaction step to the dark reaction step by
(a) ATP
(b) RUBP
(c) ADP
(d) Chlorophyll

Answer

Answer: (a) ATP


Question 4.
Translocation of carbohydrates or sugars (photosynthetic products) in flowering plants occurs in the form of
(a) Glucose
(b) Starch
(c) Maltose
(d) Sucrose

Answer

Answer: (d) Sucrose


Question 5.
Photo-respiration is induced by
(a) High oxygen content
(b) High temperature
(c) High light intensity
(d) High CO2 content

Answer

Answer: (a) High oxygen content


Question 6.
AH vegetation is only due to
(a) Oxygen
(b) CO2
(c) Water
(d) Hydrogen

Answer

Answer: (c) Water


Question 7.
Site of dark reaction is
(a) Granum
(b) Unit membrane
(c) Lamella
(d) Stroma

Answer

Answer: (d) Stroma


Question 8.
All vegetation is only due to water was proved experimentally by
(a) Aristotle
(b) Van Helmont
(c) Joseph
(d) Stephen Hales

Answer

Answer: (b) Van Helmont


Question 9.
Vegetation always purifies the air was proved experimentally first by
(a) Liebig
(b) Warburg
(c) Stephen Hales
(d) Joseph Priestly

Answer

Answer: (d) Joseph Priestly


Question 10.
Reduction of NADP+ to NADPH occurs during
(a) PSI
(b) Calvin Cycle
(c) Cyclic photophosphorylation
(d) Non cyclic photophosphorylaction

Answer

Answer: (d) Non cyclic photophosphorylaction


Question 11.
Wastage of energy is associated with
(a) Krebs cycle
(b) Photorespiration
(c) Photosynthesis
(d) Glycolysis

Answer

Answer: (b) Photorespiration


Question 12.
Green plants convert solar energy into chemical energy of organic matter was proved by
(a) Joseph Priestly
(b) Van Mayer
(c) Semebier
(d) Lavoisier

Answer

Answer: (b) Van Mayer


Question 13.
When the rate of translocation is slow, the rate of photosyntheis shall
(a) Increase
(b) Decrease
(c) Remain Unaffected
(d) Become Zero

Answer

Answer: (b) Decrease


Question 14.
The first visible product of photosynthesis is
(a) Starch
(b) Glycogen
(c) Sugar
(d) Fatty acids

Answer

Answer: (b) Starch


Question 15.
The enzyme ribulose biphosphate carboxylase oxygenase is located in
(a) Mitochondria
(b) Chloroplasts
(c) Golgi bodies
(d) peroxisomes

Answer

Answer: (b) Chloroplasts


Question 16.
C4 plants are
(a) Dicots
(b) Monocots
(c) Both dicots and monocots
(d) Cereals

Answer

Answer: (c) Both dicots and monocots


Question 17.
Photosynthesis has two reaction complexes, one followed by the other. The second seaction complex
(a) Traps light energy
(b) Fixes carbon dioxide
(c) Synthesizes starch
(d) Evolves oxygen

Answer

Answer: (b) Fixes carbon dioxide


Question 18.
Calvin cycle of C4 plants operates in
(a) Stroma of bundle sheath chloroplasts
(b) The statement is wrong
(c) Grana of mesophyll chloroplasts
(d) Stroma of bundle sheath chloroplasts

Answer

Answer: (a) Stroma of bundle sheath chloroplasts


Question 19.
Flashing light experiment and existence of light and dark reactions were demonstrated first by
(a) Van iteil
(b) Emerson and Arnold
(c) Blackmann
(d) Warburg

Answer

Answer: (b) Emerson and Arnold


Question 20.
Mass flow hypothesis was given by
(a) Munch
(b) Dixon
(c) Devries
(d) Curtis

Answer

Answer: (a) Munch


Question 21.
Rate of photosynthesis is independent of
(a) CO2
(b) Quality of light
(c) Light duration
(d) Light intensity

Answer

Answer: (d) Light intensity


Question 22.
Carbon dioxide acceptor in C3 plants is
(a) RUBP
(b) PGA
(c) RMP
(d) PEP

Answer

Answer: (a) RUBP


Question 23.
Photosynthetic process is completed in
(a) mitochondria
(b) Chromatophores
(c) Chloroplasts
(d) Chlorophyll

Answer

Answer: (c) Chloroplasts


Question 24.
In photosynthesis
(a) CO2 is reduced while water is oxidised
(b) Both CO2 and H2O are oxidised
(c) CO2 is oxidised while H2O is reduced
(d) Both CO2 and H2O are oxidised

Answer

Answer: (a) CO2 is reduced while water is oxidised.


Question 25.
In C3 plants, the first stable product of photosynthesis is
(a) Ribulose biphosphate
(b) Oxaloacetic acid
(c) Phosphoglyceric acid
(d) Glvceraldehyde 3-phosphate

Answer

Answer: (c) Phosphoglyceric acid.


Question 26.
Chloroplast DNA or Cl DNA is
(a) Circular
(b) Single stranded
(c) Naked
(d) All of these

Answer

Answer: (d) All of these


Question 27.
Photosynthetic units are of two types
(a) Photosystem I and II
(b) Chlorophylls and Carotenoids
(c) Carotenoids and phvcobilins
(d) Chlorophyll a and Chlorophyll b

Answer

Answer: (a) Photosystem I and II


Question 28.
Most effective wave length of light for photosynthesis is
(a) Yellow
(b) Green
(c) Red
(d) violet

Answer

Answer: (a) Red


Question 29.
Chloroplast pigments are
(a) Chlorophylls
(b) Phvcobilins
(c) Carotenoids
(d) All of these

Answer

Answer: (d) All of these


Question 30.
During synthesis of a glucose molecule, ATP and NADPH consumed are respectively
(a) 12 and 8
(b) 18 and 12
(c) 15 and 12
(d) 30 and 20

Answer

Answer: (b) 18 and 12


Question 31.
If plant stop photosynthesis which gas will disappear
(a) CO2
(b) O2
(c) NH3
(d) N2

Answer

Answer: (b) O2


Question 32.
Which plant shows chloroplast dimorphism?
(a) Rice
(b) Sugar Beet
(c) Sugarcane
(d) Wheat

Answer

Answer: (c) Sugarcane


Question 33.
First product of photorespiration is
(a) Glycolate
(b) Glycine
(c) Phosphoglycolate
(d) Glyceine

Answer

Answer: (c) Phosphoglycolate


Question 34.
Which is a C4 Plant?
(a) Sugarcane
(b) sorghum
(c) Maize
(d) All of these

Answer

Answer: (d) All of these


Question 35.
Natural hydrogen acceptor of Hill reaction is
(a) NADPH
(b) H2O
(c) NADP
(d) None of these

Answer

Answer: (c) NADP


Question 36.
Photorespiration is characteristic of
(a) CAM Plants
(b) C3 plants
(c) C4 Plants
(d) All of these

Answer

Answer: (b) C3/sub> plants


Question 37.
Calvin cycle is
(a) Dependent upon light
(b) Independent of light
(c) Inhibited by light
(d) Supported by light

Answer

Answer: (d) Supported by light


Question 38.
Which one is common product of both photosynthesis and respiration?
(a) ATP
(b) Chlorophyll
(c) Cytochrome
(d) Quinone

Answer

Answer: (a) ATP


Question 39.
C4 Cycle was discovered in
(a) Chrysanthemum
(b) Groundnut
(c) Apple/Pea
(d) Sugarcane

Answer

Answer: (d) Sugarcane


Question 40.
In C4 Plants, fixation of CO2 occurs in
(a) cortex of stem
(b) palisade tissue
(c) Transfusion
(d) Spongy mesophyll and bundle sheath cells

Answer

Answer: (d) Spongy mesophyll and bundle sheath cells


Question 41.
Calvin cycle is investigated by the use of
(a) C14
(b) C12
(c) O18
(d) O16

Answer

Answer: (a) C14


Question 42.
The first receiver of CO2 in C4 plants is :
(a) Malic acid
(b) Phosphophenol
(c) Qxaloacetic acid
(d) Aspartic acid

Answer

Answer: (c) Qxaloacetic acid


Question 43.
The acceptor of CO2 in C3 plants is
(a) Xglulose-5-Phosphate
(b) 3- phosphoglyceric acid
(c) Phosphoenol pyruvic acid
(d) Ribulose 1, 5 biphosphate

Answer

Answer: (c) Ribulose 1, 5 biphosphate


Question 44.
RUBP of Calvin cycle is called in C4 plants
(a) Secondary of final acceptor of CO2
(b) Primary acceptor of CO2
(c) Both (a) and (b)
(d) None of these

Answer

Answer: (a) Secondary of final cycle is called in CO2


II. Fill in the blanks:

Question 1.
All animals including human beings depend on …………. for their food.

Answer

Answer: plants


Question 2.
Green plants carry out …………….. process by which they use light energy to derive the synthesis of organic compounds.

Answer

Answer: photosynthesis a physico chemical


Question 3.
Photosynthesis is important for life due to two reasons: It is the ……………. by which all food gets synthesised on earth and is also responsible for the release of ………… into the atmosphere by plants.

Answer

Answer: mechanism, oxygen


Question 4.
A first ………., ………… of photosynthesis was thus described.

Answer

Answer: action, spectrum


Question 5.
A milestone contribution to the understanding of …………… was that made by a microbiologist, ………….. (1897-1985), who based on his studies of ………….. and green …………

Answer

Answer: photosynthesis, Cornelius van Niel, purple, bacteria


Question 6.
6CO2 + 12H2O ……………..

Answer

Answer:
MCQ Questions for Class 11 Biology Chapter 13 Photosynthesis in Higher Plants with Answers 1


Question 7.
The membrane system is responsible for trapping the light energy and synthesising of ………. and …………..

Answer

Answer: ATP, NADPH


Question 8.
The former sets or reactions since they are light dependent are called ……………

Answer

Answer: light reactions


Question 9.
ATP and NADPH, can theoretically take place in the dark and are called ……………

Answer

Answer: dark reactions


Question 10.
Chromatography, that literally means ‘…………..’

Answer

Answer: colour writing


Question 11.
We see in leaves is not due to a single pigment but due to four pigments: chlorophyll a (bright or blue green in the chromatogram), chlorophyll b (yellow green), ………… (yellow) and …………. (yellow to yellow-orange).

Answer

Answer: Xanthophylls, Carotenoids


Question 12.
Of course you are familiar with the. wavelength of the visibl specturm of light as well as the ……………

Answer

Answer: VIBGYOR


Question 13.
The pigments chlorophyll b and the carotenoids -Xanthophylls and carotene are called …………….

Answer

Answer: accessory pigments


Question 14.
In PSI the reaction centre chlorophyll a has an absoiption pea at 700 nm hence is called ……………. while in PS II it has absorption maxim.” at 680 nm, and is called ……………

Answer

Answer: P700, P680


Question 15.
When the two photosystems work in a series, first PS II and the: PS I, a process called …………….. occurs.

Answer

Answer: non-cyclic photo-phosphosylation


Question 16.
The Calvin pathway occurs in ……………

Answer

Answer: all photorynthetic plants


Question 17.
C4 plants are special they have a special type of …………. anatomy they tolerate higher ………….. they show a response to highligh ………., they lack a process called ………….. and have greate productivity.

Answer

Answer: leaf, temperatures, intensities, photorespiration


Question 18.
The particularly large cells around the vascular bundles of the C4 pathway plants are called ………….. and the leaves which have such anatomy are said to have ‘…………..’ anatomy.

Answer

Answer: bundle sheath cells, Kranz


Question 19.
In C3 plants some O2 does bind to RuBisco, and hence CO2 fixation is decreased. Here the RUBP instead of being converted to PGA is broken down in a pathway called …………….

Answer

Answer: Photorespiration


Question 20.
The C4 plants respond to ………….. and show higher rate of …………. while C3 plants have a much ………….

Answer

Answer: higher temperatures, photosynthesis, temperature optimum


III. Mark the statement True (T) or False (F)

Question 1.
Water stress causes the stomata to close hence reducing the CO2 availability.

Answer

Answer: True


Question 2.
Tropical plants have a higher temperature optimum than that of the plants adapted to temperate climates.

Answer

Answer: True


Question 3.
The C4 plants show saturation at about 450 µ. L-1 while C3 responds to increased CO2 concentration and saturation is seen only beyond 360µ. L-1

Answer

Answer: True


Question 4.
Green plants carry out ‘photosynthesis’, a physico-chemical process by which they use light energy to drive the synthesis of organic compounds.

Answer

Answer: True


Question 5.
Julius Von Sachs in 1770’s performed a series of experiment that revealed the essential role of air in growth of green plants.

Answer

Answer: False


Question 6.
Joseph Priestlay showed that sunlight is essential to the plant process that somehow purifies the air fouled by burning candles or breathing animals.

Answer

Answer: False


Question 7.
Jan Ingenhourz provided evidence for production of glucose when plants grow.

Answer

Answer: False


Question 8.
The former set of reations since they are light dependent, are called light reactions.

Answer

Answer: True


Question 9.
The pigments are organised into two discrete photochemical fight harvesting complexes (LHC) called photosystem I (PS-I) and Photosystem II (PS II).

Answer

Answer: True


Question 10.
Reduction is the most crucial step of the Calvin cycle where CO2 is utilised for the carboxylation of RUBP.

Answer

Answer: False


Question 11.
C4 Plants are special: They have a special type of leaf anatomy, they tolerate higher temperatures, they show a response to high fight intensities, they lack a process called photorespiration and have greater productivity of biomass.

Answer

Answer: True


Question 12.
The primary CO2 acceptor is 3 carbon molecule phosphoenol pyruvate (PEP) and is present in the mesophyll cells.

Answer

Answer: True


Question 13.
Oxygen is the major limiting factor for photosynthesis.

Answer

Answer: False


Question 14.
The C3 plants respond to higher temperatures and show higher rate of photosynthesis while C4 plants have a much lower temperature optimum.

Answer

Answer: False


Question 15.
The vascular bundles of the C4 pathway plants are called bundle sheath cells, and the leaves which have such anatomy are said to have ‘kranz’ anatomy.

Answer

Answer: True


IV Match the items in Column I with the items in Column II

Column IColumn II
(a) Photosynthesis1. Out 18 ADP
(b) It was not until about 1854 that Julius2. Law of limiting factors
(c) T.W Engelmann3. Consisting of cytochromes
(d) The former set of reactions since they are directly light driven4. a physico-chemical process
(e) Wavelength of the visible specturm5. light absorption, water splitting, oxygen release
(f) electrons transport system6. the plants adapted to temperate climates.
(g) Calvin cycle : In 18 ATP7. Von Sachs provided evidence for production of glucose when plants grow.
(h) Calvin cycle : In six CO28. of light as well as the VIBGYOR.
(i) RiBulose bisphosphate carboxy-lase-oxygenase9. Using a prism he split light into its spectral components and then illuminated a green alga, cladophora.
(j) Blackman’s (1905)10. are called dark reactions
(k) Tropical plants have a higher temperature optimum than11. out one Glucose
(l) Photochemical phase12. (RuBisco)
(m) PS I13. P700
(n) PS II14. Purple and green bacteria
(o) Cornelius Van Niel (1897 – 1985), who based on his studies of15. P680
Answer

Answer:

Column IColumn II
(a) Photosynthesis4. a physico-chemical process
(b) It was not until about 1854 that Julius7. Von Sachs provided evidence for production of glucose when plants grow.
(c) T.W Engelmann9. Using a prism he split light into its spectral components and then illuminated a green alga, cladophora.
(d) The former set of reactions since they are directly light driven10. are called dark reactions
(e) Wavelength of the visible specturm8. of light as well as the VIBGYOR.
(f) electrons transport system3. Consisting of cytochromes
(g) Calvin cycle : In 18 ATP1. Out 18 ADP
(h) Calvin cycle : In six CO211. out one Glucose
(i) RiBulose bisphosphate carboxy-lase-oxygenase12. (RuBisco)
(j) Blackman’s (1905)2. Law of limiting factors
(k) Tropical plants have a higher temperature optimum than6. the plants adapted to temperate climates.
(l) Photochemical phase5. light absorption, water splitting, oxygen release
(m) PS I13. P700
(n) PS II15. P680
(o) Cornelius Van Niel (1897 – 1985), who based on his studies of14. Purple and green bacteria

 


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