_____ is a mass of finger like projections on the synergid wall?

Options

A. egg
B. chalaza
C. micopylar
D. filliform

Answer

To answer the question "_____ is a mass of finger-like projections on the synergid wall?", we will follow these steps:

### Step 1: Understand the Context
The question refers to a structure found in the embryo sac of flowering plants. The embryo sac contains several types of cells, including synergids, which play a crucial role in fertilization.

**Hint:** Look for terms related to the structure of the embryo sac and its components.

### Step 2: Identify the Relevant Cells
In the embryo sac, the synergids are located near the egg cell. They are important for guiding the pollen tube towards the egg for fertilization.

**Hint:** Focus on the cells that are involved in the fertilization process.

### Step 3: Recognize the Projections
The question specifically asks about "finger-like projections" on the synergid wall. These projections are known to assist in the fertilization process by directing the pollen tube.

**Hint:** Think about what structures in biology are described as "finger-like" and their functions.

### Step 4: Recall the Correct Term
The correct term for these finger-like projections is the "filiform apparatus." This structure is found on the synergid cells and is crucial for guiding the pollen tube to the egg cell.

**Hint:** Remember that the term you are looking for is often associated with the fertilization mechanism in plants.

### Step 5: Choose the Correct Option
Given the options provided (egg, chalaza, micropyle, and filiform), the correct answer is "filiform apparatus."

**Hint:** Eliminate options that do not relate to the structure of the embryo sac or fertilization.

### Final Answer
The answer to the question is **filiform apparatus**.

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