Match List I with List II: [2024]
| List I | List II |
| A. Axoneme | I. Centriole |
| B. Cartwheel pattern | II. Cilia and flagella |
| C. Crista | III. Chromosome |
| D. Satellite | IV. Mitochondria |
Choose the correct answer from the options given below:
A-IV, B-III, C-II, D-I
A-IV, B-II, C-III, D-I
A-II, B-IV, C-I, D-III
A-II, B-I, C-IV, D-III
Given below are two statements: [2024]
Statement I: Mitochondria and chloroplast both are double membrane-bound organelles.
Statement II: Inner membrane of mitochondria is relatively less permeable, as compared to chloroplast.
In the light of the above statements, choose the appropriate answer from the options given below:
Both Statement I and Statement II are correct.
Both Statement I and Statement II are incorrect.
Statement I is correct but Statement II is incorrect.
Statement I is incorrect but Statement II is correct.
(3)
Chloroplast and mitochondria both are double membrane eukaryotic organelles. The inner membrane of chloroplast is relatively less permeable than the inner membrane of mitochondria.
Match List I with List II. [2024]
| List I | List II |
| A. Nucleolus | I. Site of formation of glycolipid |
| B. Centriole | II. Organisation like the cartwheel |
| C. Leucoplasts | III. Site for active ribosomal RNA synthesis |
| D. Golgi apparatus | IV. For storing nutrients |
Choose the correct answer from the options given below:
A-III, B-II, C-IV, D-I
A-II, B-III, C-I, D-IV
A-III, B-IV, C-II, D-I
A-I, B-II, C-III, D-IV
The DNA present in chloroplast is [2024]
linear, double-stranded
circular, double-stranded
linear, single-stranded
circular, single-stranded
Which of the following statements are correct with respect to Golgi apparatus? [2023]
(A) It is the important site of formation of glycoprotein and glycolipids.
(B) It produces cellular energy in the form of ATP.
(C) It modifies the protein synthesized by ribosomes on ER.
(D) It facilitates the transport of ions.
(E) It provides mechanical support.
Choose the most appropriate answer from the options given below:
(B) and (C) only
(A) and (C) only
(A) and (D) only
(D) and (E) only
(2)
Mitochondria are the sites of aerobic respiration. They produce cellular energy in the form of ATP, hence they are called the "powerhouse" of the cell. The cytoskeleton in a cell provides mechanical support.
Which of the following functions is carried out by the cytoskeleton in a cell? [2023]
Motility
Transportation
Nuclear division
Protein synthesis
(1)
The cytoskeleton is an elaborate network of filamentous proteinaceous structures consisting of microtubules, microfilaments and intermediate filaments present in the cytoplasm. It is involved in many functions such as motility, mechanical support and maintenance of the shape of the cell.
Which of the following are not considered as part of the endomembrane system? [2023]
A. Mitochondria
B. Endoplasmic Reticulum
C. Chloroplasts
D. Golgi complex
E. Peroxisomes
Choose the most appropriate answer from the options given below:
A and D only
A, D and E only
B and D only
A, C and E only
(4)
The endomembrane system includes the endoplasmic reticulum (ER) (B), Golgi complex (D), lysosomes and vacuoles because the functions of these organelles are coordinated. However, the functions of mitochondria (A), chloroplasts (C), and peroxisomes (E) are not coordinated with the above components, so these are not considered as part of the endomembrane system.
How many different proteins does the ribosome consist of? [2023]
40
20
80
60
Match List-I with List-II. [2022]
| List-I | List-II |
| a) Metacentric chromosome | (i) Centromere situated close to the end forming one extremely short and one very long arm |
| b) Acrocentric chromosome | (ii) Centromere at the terminal end |
| c) Sub-metacentric | (iii) Centromere in the middle forming two equal arms of chromosomes |
| d) Telocentric chromosome | (iv) Centromere slightly away from the middle forming one shorter arm and one longer arm |
Choose the correct answer from the options given below:
(A)-(iii), (B)-(i), (C)-(iv), (D)-(ii)
(A)-(i), (B)-(iii), (C)-(ii), (D)-(iv)
(A)-(ii), (B)-(iii), (C)-(iv), (D)-(i)
(A)-(i), (B)-(ii), (C)-(iii), (D)-(iv)
Which of the following statements with respect to endoplasmic reticulum is incorrect? [2022]
RER has ribosomes attached to ER
SER is devoid of ribosomes
In prokaryotes only RER are present
SER are the sites for lipid synthesis
(3)
The rough endoplasmic reticulum, peroxisomes and mitochondria are bound by their own membranes and are only found in eukaryotic cells. So, SER and RER are not found in prokaryotic cells as they are exclusive to eukaryotic cells.
