Which of the following plant cell organelles is considered as semi-autonomous?
Show Hint
- Mitochondria (own DNA, ribosomes).
- Chloroplasts (own DNA, ribosomes).
- Both have endosymbiotic origin.
- Endoplasmic reticulum
- Mitochondria
- Golgi body complex
- Lysosomes
The Correct Option is B
Solution and Explanation
This question tests knowledge of semi-autonomous organelles in plant cells.
Step 2: Detailed Explanation:
Mitochondria (B) are considered semi-autonomous organelles.
They have their own DNA, ribosomes, and can replicate independently.
However, they are not completely autonomous because they depend on nuclear genes for many proteins.
Other semi-autonomous organelles:
- Chloroplasts (also have their own DNA and ribosomes).
Other organelles:
- Endoplasmic reticulum (A): Not semi-autonomous.
- Golgi body complex (C): Not semi-autonomous.
- Lysosomes (D): Not semi-autonomous.
Thus, mitochondria are semi-autonomous.
Step 3: Final Answer:
Thus, mitochondria are considered semi-autonomous, which corresponds to option (B).
[0.5cm]
Top ICAR AIEEA Plant Sciences Questions
- Both plant and animal cells contain some small organelles called 'peroxisomes', which are dedicated to the metabolism of substances such as
- Chemicals that store energy for the majority of work within cells are called
- The longest phase during the eukaryotic cell cycle is
- The formula: [Sum of (Observed-Expected)$^2$/Expected] is also known as
- Human beings have a large-sized 'proteome'. The principal and more significant reason for this is-
Top ICAR AIEEA Seed Science Questions
- Which of the following groups of seeds represents the orthodox class of seeds?
The characteristic features of monocot seeds include-
• [(A).] Seeds germinate bearing a short axis called Plumule and Radicle.
• [(B).] Plumule and Radicle are enclosed in a sheath called Coleoptile and Coleorhiza, respectively.
• [(C).] The radicle grows downward and develops into the root system.
• [(D).] The cotyledon of the seeds of the monocot crop Sorghum (Jowar) is known as 'Husk'.
Choose the correct answer from the options given below:
Which of the following statements are INCORRECT about 'Enforced seed dormancy'?
• [(A).] Enforced seed dormancy occurs due to certain genetical and physiological factors.
• [(B).] Enforced seed dormancy is truly a specific character of the seeds.
• [(C).] High soil temperature and $NO_3$ content of the surface soil may help break the enforced seed dormancy.
• [(D).] Cultivation practices may also break the enforced seed dormancy by exposing the seeds to better aeration.
Choose the correct answer from the options given below:
- Match List-I with List-II
List-I: Seed Tests & List-II: Purpose
(A). Grow-out test & (I). Leachate discharge
(B). Tetrazolium test & (II). Seed coat permeability
(C). Electrical conductivity & (III). Seed purity
(D). Imbibition test & (IV). Seed viability
Choose the correct answer from the options given below: - Match List-I with List-II
List-I: Seed type & List-II: Examples
(A). Orthodox seed & (I). Coffee
(B). Recalcitrant seed & (II). Chickpea
(C). Impermeable seed coat & (III). Capsicum
(D). Hypogeal germination & (IV). Soybean (wild type)
Choose the correct answer from the options given below:
Top ICAR AIEEA Questions
- Which of the following statements is false?
- Which of the following is an example of an inventory?
- According to Adam Smith, productivity gains could be brought about through .
- The supply curve for an artificially scarce good is .
- Which of the following would not be considered an opportunity cost of paid employment?