Tag: nutrition - food supplying system

Questions Related to nutrition - food supplying system

Which cellular part is correctly described

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. Thylakoids - Flattened membranous sacs forming grana

  2. Centrioles - Sites for active RNA synthesis

  3. Ribosomes - Those in chloroplasts are larger (80 S) while those in cytoplasm are smaller (70 S)

  4. Lysosomes - Opimally active at 8.5 pH.

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Correct Option: A

Match the following

a. Bacteria 1. Synthesis and storage of lipids
b. Sphaerosomes 2. Idiogram
c. Chloroplasts 3. Glycocalyx
d. Karyotype 4. Thylakoids
biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. a-3, b-1, c-4, d-2

  2. a-3, b-1, c-2, d-4

  3. a-4, b-3, c-2, d-1

  4. a-1, b-2, c-3, d-4

  5. a-3, b-2, c-4, d-1.

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Correct Option: A

Consider the following processes.
a. $O _2$ evolution
b. $CO _2$ fixation
c. NADPH formation
d. Chlorophyll biosynthesis.
Which of these do not occur in thylakoids?

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. $1$ and $2$

  2. $2$ and $3$

  3. $3$ and $4$

  4. $2$ and $4$

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Correct Option: A

If $^{14}CO _2$ is added to a suspension of photosynthesizing chloroplasts, which of the following will be the first compound to be radioactive?

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. ATP

  2. NADPH

  3. NADH

  4. $3$-phosphor glycerate

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Correct Option: D

Which one of the following options is true in photsynthesis.

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. $CO _2$ is oxidized and $ H _2O $ is reduced

  2. $H _2O $is oxidized and $CO _2 is reduce d$

  3. Both $CO _2$ and $H _2O$ are reducedd

  4. Both $CO2$ and$ H2O$ are oxidized

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Correct Option: B

With reference to photosynthesis in chloroplasts, consider the following statements.
a. The reactions that break down water and produce oxygen are located on the lumen side of the thylakoid membrane, in granum areas.
b. The molecules of ferredoxin-NADP re-educate that generate NADPH are located on the side of the membrane facing stroma.
Which of the statements given is/are correct?

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments action spectrum and absorption spectrum spectrum of electromagnetic radiation

  1. $1$ only

  2. $2$ only

  3. Both $1$ and $2$

  4. Neither $1$ nor $2$

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Correct Option: A

Which of the following pairs are correctly matched? Principal wavelength Physiological of light event.
a. $700$nm- Photo system I
b. $650$nm- Photo system II
c. $690$nm- Photo system III
d. $620$nm- Phycocyanin
Select the correct answer using the codes given.

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments

  1. $1, 2$ and $4$

  2. $1, 3$ and $4$

  3. $2$ and $4$

  4. $1$ and $3$

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Correct Option: A

When one molecule of $NADP^{+}$ is reduced how many water molecule split in to $H^{+}$ and $[O]$?

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments

  1. Two

  2. Three

  3. One

  4. Four

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Correct Option: A

When only light of wavelength beyond $680\ mm$ are available then which of the following is not occur?

biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments

  1. Absorption of light

  2. Formation of ATP

  3. Release of $O _{2}$

  4. Excitetion of electron

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Correct Option: A

Match column I with column II and select the correct option from the given codes

 Sr. no  Column I  Sr.no Column II 
 A.  $C _4$ plant  i.  Succulents
 B.  Chlorophyll $b$  ii.  Accessory photosynthetic pigment
 C.  PS II  iii.  Photooxodation of $H _2O$
 D.  CAM  iv.  Kranz anatomy 

.


biology nutrition - food supplying system site of photosynthesis chloroplast and pigments of photosynthesis pigments

  1. A - (iv), B - (ii), C - (iii), D - (i)

  2. A - (iii), B - (ii), C - (iv), D - (i)

  3. A - (i), B - (iii), C - (ii), D - (iv)

  4. A - (i), B - (ii), C - (iii), D - (iv)

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Correct Option: A
Explanation:

(A) C$ _4$ plant - Kranz anatomy 

(B) Chlorophyll b - Succulents
(C) PS II - Photooxidation of water
(D) CAM - Accessory photosynthetic pigment
So, the correct answer is (a).