Which of the following are NOT considered as the part of endomembrane system?
A. Mitochondria
B. Endoplasmic Reticulum
C. Chloroplasts
E. Peroxisomes
D.Golgi complex
Choose the most appropriate answer from the options given below:

NEET-2023 [cell-the-unit-of-life] [class-xi ]

• A, D and E only
• B and D only
• A, C and E only
• A and D only
Correct Option: C  [ A, C and E only ]

Remark:

Which of the following functions is carried out by cytoskeleton in a cell?

NEET-2023 [cell-the-unit-of-life] [class-xi ]

• Transportation
• Nuclear division
• Protein synthesis
• Motility
Correct Option: D  [ Motility ]

Remark:

Given below are two statements:
Statement I: Mycoplasma can pass through less than 1 micron filter size.
Statement II: Mycoplasma are bacteria with cell wall.
In the light of the above statements, choose the most appropriate answer from the options given below

NEET-2022 [cell-the-unit-of-life] [class-xi ]

• correct are Both Statement I and Statement II
• 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
Correct Option: C  [ Statement I is correct but Statement II is incorrect ]

Remark:

Which of the following statements with respect to Endoplasmic Reticulum is incorrect?

NEET-2022 [cell-the-unit-of-life] [class-xi ]

• SER is devoid of ribosomes
• In prokaryotes only RER are present
• SER are the sites for lipid synthesis
• RER has ribosomes attached to ER
Correct Option: B  [ In prokaryotes only RER are present ]

Remark:

Which of the following is an incorrect statement?

NEET-2021 [cell-the-unit-of-life] [class-xi ]

• Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles.
• Microbodies are present both in plant and animal cells.
• The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm.
• Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm.
Correct Option: A  [ Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles. ]

Remark:

Match List-I with List-II.

NEET-2021 [cell-the-unit-of-life] [class-xi ]

• A-I, B-IV, C-III, D-II
• A-III, B-IV, C-I, D-II
• A-II, B-III, C-IV,D-I
• A-IV, B-III, C-II, D-I
Correct Option: B  [ A-III, B-IV, C-I, D-II ]

Remark:

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as:

NEET-2021 [cell-the-unit-of-life] [class-xi ]

• Metacentric
• Telocentric
• Sub-metacentric
• Acrocentric
Correct Option: A  [ Metacentric ]

Remark:

The organelles that are included in the endomembrane system are:

NEET-2021 [cell-the-unit-of-life] [class-xi ]

• Endoplasmic reticulum, Mitochondria, Ribosomes and Lysosomes
• Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles
• Golgi complex, Mitochondria, Ribosomes and Lysosomes
• Golgi complex, Endoplasmic reticulum, Mitochondria and Lysosomes
Correct Option: B  [ Endoplasmic reticulum, Golgi complex, Lysosomes and Vacuoles ]

Remark:

Inclusion bodies of blue-green, purple and green photosynthetic bacteria are:

NEET-(Oct)2020 [cell-the-unit-of-life] [class-xi ]

• Contractile vacuoles
• Gas vacuoles
• Centrioles
• Microtubules
Correct Option: B  [ Gas vacuoles ]

Remark:

The biosynthesis of ribosomal RNA occurs in:

NEET-(Oct)2020 [cell-the-unit-of-life] [class-xi ]

• Ribosomes
• Golgi apparatus
• Microbodies
• Nucleolus
Correct Option: D  [ Nucleolus ]

Remark: