Question

Which of the following organelles are NOT present in plant cells?

• A. Peroxisomes
• B. Golgi apparatus
• C. Smooth endoplasmic reticulum
• D. Lysosome

Hint:

Remember the three key structures present in plant cells but absent in animal cells: the cell wall, chloroplasts, and a large central vacuole. Conversely, lysosomes and centrioles are typically found in animal cells but not in plant cells.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
The question asks to identify an organelle from the list that is typically absent in plant cells. This requires knowledge of the differences between animal and plant cell structures.

Step 2: Detailed Explanation:
Let's review the presence of each organelle in a typical plant cell:
\[\begin{array}{rl} \bullet & \text{1. Peroxisomes: These organelles are present in plant cells and are involved in various metabolic processes, including photorespiration. } \\ \bullet & \text{2. Golgi apparatus: Present in plant cells, where it is involved in modifying, sorting, and packaging proteins and lipids, and is also crucial for synthesizing cell wall polysaccharides. } \\ \bullet & \text{3. Smooth endoplasmic reticulum: Present in plant cells, playing roles in lipid synthesis, detoxification, and calcium storage. } \\ \bullet & \text{4. Lysosome: Lysosomes are characteristic organelles of animal cells, containing digestive enzymes. In plant cells, this digestive function is largely taken over by the large central vacuole. While some plant cells may contain small lysosome-like bodies, the distinct organelle known as a lysosome is generally considered to be absent from plant cells. } \\ \end{array}\]

Step 3: Final Answer:
Lysosomes are generally not considered to be present in plant cells.