Passage Reference: The material all around the nucleus within the cell membrane is the cytoplasm. It is a gel-like material that contains the organelles of a cell like ribosomes, centrosomes, microfilaments, and microtubules.

Common Mistake: Some students choose cell membrane because it is also part of the cell. But the membrane is the outer layer, not the material inside. This is a context shift trap.

Paraphrasing: Passage: 'material all around the nucleus' = Diagram: 'inner substance of the cell'

Tips: If the label is inside the cell and fills most of the space, it is usually the cytoplasm, not the membrane.

Key Vocabulary:

• material = substance
• gel-like = thick and soft

Question Focus: The diagram points to a round structure at the center of the cell.

Correct Answer: A

Passage Reference: At the center of an animal cell, there is a round-shaped organelle called the nucleus. Each cell has only one nucleus and it is the control center of cells.

Why this is correct: The diagram shows a round shape in the center of the cell. The passage says there is a round-shaped organelle at the center called the nucleus. So the answer is nucleus.

Common Mistake: Students sometimes choose mitochondria because it is an organelle too. But mitochondria are not described as being at the center. This is a wrong section trap.

Paraphrasing: Passage: 'center of an animal cell' = Diagram: 'middle part of the cell'

Tips: When you see words like center or middle, scan the passage for the same location words.

Key Vocabulary:

• organelle = part of a cell
• control center = main controller

Question Focus: The diagram highlights small oval-shaped structures inside the cell.

Correct Answer: B

Passage Reference: The cell membrane houses another crucial organelle called the mitochondria. These are oval-shaped entities which generate power for the cell to function.

Why this is correct: The diagram points to small oval shapes inside the cell. The passage says mitochondria are oval-shaped and help generate power. So the answer is mitochondria.

Common Mistake: Some students pick centrosomes or microfilaments because they see a list of organelles. But those are only mentioned as examples inside the cytoplasm, not described in shape or function. This is a partial truth trap.

Paraphrasing: Passage: 'generate power for the cell' = Diagram: 'energy-producing part'

Tips: Use shape clues like oval-shaped or round-shaped to match the correct label.

Key Vocabulary:

• crucial = very important
• generate = produce

Question Focus: The diagram label describes a property of the outer layer of the animal cell.

Correct Answer: E

Passage Reference: Instead, the outer layer of animal cells is a semi-permeable layer called cell membrane, which encloses all the smaller organelles within a cell.

Why this is correct: The diagram describes the outer layer and asks for its property. The passage says the cell membrane is a semi-permeable layer. So the correct label is semi-permeable.

Common Mistake: Many students choose cell membrane because it is mentioned in the same sentence. But the diagram already shows the layer and asks for its quality, not its name. This is a paraphrase trap.

Paraphrasing: Passage: 'semi-permeable layer' = Diagram: 'allows some things to pass'

Tips: Check if the diagram wants a thing or a description. Sometimes it asks for a property, not an object.

Key Vocabulary:

• semi-permeable = lets some things pass
• outer layer = outside covering

General Tips:

• Diagram labels usually follow the same order as the passage. Read from top to bottom.
• Always match the location in the diagram with location words in the passage like center or outer layer.
• Do not choose a word just because it looks scientific. Check the exact meaning.
• Cross out options as you use them so you do not reuse the same word.