Tag: photosynthesis in higher plants

Questions Related to photosynthesis in higher plants

The law of limiting factors' was given by _______ in the year _______.
biology plant nutrition limiting factors factors affecting photosynthesis photosynthesis in higher plants

  1. Blackman, 1905

  2. Blackman, 1804

  3. Engelmann, 1909

  4. Warburg, 1920

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Correct Option: A
Explanation:

Blackman's (1905) law of limiting factors states that if a chemical process is affected by more than one factor, then its rate will be determined by the factor which is nearest to its minimal value; it is the factor which directly affects the process if its quantity is changed. 

So the correct option is A.

How many ATP molecule are required in regeneration step for regeneration of $5$ molecule of RuBP in $C _3$ cycle?

c3, c4 and cam plants photosynthesis in higher plants biology

  1. $10$

  2. $2$

  3. $4$

  4. $5$

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Correct Option: A

Na is an essential element for ....

c3, c4 and cam plants photosynthesis in higher plants biology

  1. C3 plant

  2. C4 plant

  3. both (a) and (b)

  4. none of these

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Correct Option: A

C-4 plants show poor rate of photosynthesis at low temperature due to __________.

c3, c4 and cam plants photosynthesis in higher plants biology

  1. PEPcase

  2. Kranzanatomy

  3. PPDK

  4. Rubisco

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Correct Option: A

Which one is false about Kranz anatomy?

c3, c4 and cam plants photosynthesis in higher plants biology

  1. It is found in Atriplex

  2. Bundle sheath cells have large chloroplasts and less developed grana

  3. Mesophyll cells have large chloroplasts and more developed grana

  4. The plants with Kranz anatomy have better photosynthetic power than $C _3$ plants.

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Correct Option: C

In how many of the given plants $C _{3}$ cycle is present in mesophyll cell?
Wheat, Pea, Maize, Pineapple, Agave, Sorghum, Tomato.

c3, c4 and cam plants photosynthesis in higher plants biology

  1. Seven

  2. Five

  3. Six

  4. Two

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Correct Option: A

Consider the following families.
a. Amaranthaceae
b. Cyperaceae
c. Euphorbiaceae
d. Nyctaginaceae
Which of these families have plants with $C _4$ metabolism of photosynthesis?

c3, c4 and cam plants photosynthesis in higher plants biology

  1. $1$ and $3$

  2. $1, 2$ and $4$

  3. $2, 3$ and $4$

  4. $1, 2, 3$ and $4$

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Correct Option: A

What is the primary acceptor of $CO _2$ in Hatch-Slack cycle?

c3, c4 and cam plants photosynthesis in higher plants biology

  1. Phosphoenolpyruvic acid

  2. Ribulose biphosphate

  3. Phosphoglyceric acid

  4. Diphosphoglyceric acid

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Correct Option: A

$C 4$ plants are divided into three subgroups based on ______________.

c3, c4 and cam plants photosynthesis in higher plants biology

  1. Decarboxylation reactions

  2. Oxidation reactions

  3. Reduction reactions

  4. Energy reactions

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Correct Option: A

Which of the following photosynthetic characteristics are present in $C _3$ plants but not in $C _4$ plants?
a. $CO _2$ compensation point of $45$ ppm
b. Relatively higher rate of photo respiratory $CO _2$ evolution
c. Presence of well developed bundle sheath
d. Initial involvement of RuBP carboxyl's(RuBis CO) in $CO _2$ assimilation.
Select the correct answer using the codes given.

c3, c4 and cam plants photosynthesis in higher plants biology

  1. $1, 2$ and $3$

  2. $1, 2$ and $4$

  3. $1, 3$ and $4$

  4. $2$ and $4$

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Correct Option: A