Cow eat grass and both have cells (cow and grass). Read the following statements regarding cells :
(A) Cow cells are bigger than grass cells.
(B) Cow cells have plastids and small vacuoles.
(C) Grass cells have cell walls and vacuoles.
(D) Grass cells have centrosome and chloroplasts.
(E) Cow cells have cell membrane and mitochondria.
Choose the correct option :

Question

Accepted Answer

Option 3, which includes statements C and E, is the correct answer. Let's examine why this is the case:

1. **Statement C: Grass cells have cell walls and vacuoles.**
   - This statement is correct. Grass, being a plant, has cells that are characterized by the presence of a cell wall. The cell wall provides structural support and protection. Additionally, plant cells, including grass cells, contain vacuoles, which are large, membrane-bound organelles that store nutrients, waste products, and help maintain turgor pressure within the cell.

2. **Statement E: Cow cells have cell membrane and mitochondria.**
   - This statement is also correct. Cow cells, like all animal cells, have a cell membrane, which is a lipid bilayer that encloses the cell, providing structure and regulating the movement of substances in and out of the cell. Mitochondria are organelles found in animal cells, including cow cells, and are responsible for producing energy through the process of cellular respiration.

Now, let's explain why the other options are incorrect:

- **Option 1 (A and C):**
  - Statement A: "Cow cells are bigger than grass cells." This statement is not universally true. Cell size can vary widely within both animal and plant cells, and there is no general rule that cow cells are larger than grass cells.
  - Statement C is correct, but since Statement A is incorrect, Option 1 is not the right choice.

- **Option 2 (B and C):**
  - Statement B: "Cow cells have plastids and small vacuoles." This statement is incorrect. Plastids, including chloroplasts, are found in plant cells, not animal cells like those of a cow. While animal cells can have small vacuoles, they do not have plastids.
  - Statement C is correct, but since Statement B is incorrect, Option 2 is not the right choice.

- **Option 4 (D and E):**
  - Statement D: "Grass cells have centrosome and chloroplasts." This statement is partially incorrect. While grass cells do have chloroplasts, which are plastids involved in photosynthesis, they do not have centrosomes. Centrosomes are typically found in animal cells and are involved in organizing microtubules during cell division.
  - Statement E is correct, but since Statement D is incorrect, Option 4 is not the right choice.

In conclusion, Option 3 is the correct answer because both statements C and E accurately describe the characteristics of grass and cow cells, respectively.