1. Chloroplast based DNA markers are now being used for the taxonomic identification of plants. This method is called
A) RAPD
B) RFLP
C) AFLP
D) DNA barcoding
2. Which of the following best supports the endosymbiotic theory of the evolutionary origin of mitochondria?
A) Mitochondria, chloroplasts, and prokaryotes contain electron carriers.
B) Genes for mitochondrial pyruvate dehydrogenase subunits are found in the nuclear DNA
C) Mitochondrial and bacterial ribosomal functions are inhibited by the same antibiotics
D) The outer mitochondrial membrane contains the protein porin.
3. The atom within each cytochrome molecule that actually accepts and release electron is
A) Carbon
B) Iron
C) Zinc
D) Oxygen
4. Minute granular structures found on the inner face of the thylakoid membrane
A) Quantasomes
B) Diplosomes
C) Oxysomes
D) Lysosomes
4. Kappa particles are present in
A) Plastids
B) Plasmids
C) Mitochondria
D) Cytoplasm
5. Small particles present on the inner mitochondrial membrane are called
A) Ergosomes
B) Peroxisomes
C) Elementary particles
D) Core particles
6. The 70S ribosomes that can be seen in Chloroplast and Mitochondria are
I. An evidence for Endosymbiont Hypothesis on origin of Eukaryotes
II. Prokaryotic ancestor of Chloroplast and Mitochondria
III. Less efficient in translation comparing to 80S ribosomes in the cytoplasm
A) I and III
B) II and III
C) I and II
D) I, II and III
7. Evolution of chloroplast is the major criteria in the classification proposed by:
A) Bold and Wynne
B) Round
C) Lee
D) Fritsch
8. Which of the following statements regarding mitochondria is incorrect?
A) Mitochondrial matrix contains single circular DNA molecule and ribosomes.
B) Outer membrane is permeable to monomers of carbohydrates, fats and proteins.
C) Enzymes of electron transport are embedded in outer membrane.
D) Inner membrane is convoluted with infoldings.
9, Match the columns and identify the correct option.
Column I Column II
A. Thylakoids (i) Disc-shaped sacs in Golgi apparatus
B. Cristae (ii) Condensed structure of DNA
C. Cisternae (iii) Flat membranous sacs in stroma
D. Chromatin (iv) Infoldings in mitochondria
a) A-(ii), B-(i), C-(iv), D-Gi)
b) A-(iii), B-(iv), C-(i), D-(ii)
c) A-(iv), B-(ii), C-(i), D-(ii)
d) A-(ii), B-(iv), C-(iii), D-(i)
10. Cellular organelles with membranes are
A) endoplasmic reticulum, ribosomes and nuclei
B) lysosomes, Golgi apparatus and mitochondria
C) nuclei, ribosomes and mitochondria
D) chromosomes, ribosomes and endoplasmic reticulum.
11. When the rotor of ATP synthase rotates 360°:
A) 3 H+ ions are shuttled back to mitochondrial matrix
B) 1 H+ ion is shuttled back to mitochondrial matrix
C) 3H+ ions are shuttled to the intermembrane space of mitochondria
D) 3 ATP molecules are produced
Answers:
1. D) DNA barcoding
2. C) Mitochondrial and bacterial ribosomal functions are inhibited by the same antibiotics
3. B) Iron
4. C) Mitochondria
5. C) Elementary particles
6. c) I and II
7. C) Lee
8.C) Enzymes of electron transport are embedded in outer membrane.
9. b) A-(iii), B-(iv), C-(i), D-(ii)
10. B) lysosomes, Golgi apparatus and mitochondria
11. A) 3 H+ ions are shuttled back to mitochondrial matrix
