I'll create a 10-question quiz on Cells for Standard 07 Science (Myanmar, Diplomatic School) with word problems. Let me format this as a clean, printable document.

Here's your 10-Question Quiz on Cells for Standard 07 Science (Myanmar, Diplomatic School). All questions are word problems designed to test understanding through real-life scenarios.

School: Diplomatic School, Myanmar
Subject: Science | Standard: 07 | Chapter: 01 — Cells
Total Marks: 50 (5 marks each) | Time: 30 minutes

A biology teacher asked her class to observe onion skin cells under a microscope. Maya noticed that the cells had a rigid outer boundary and a large empty space in the center of each cell.

(a) What is the name of the rigid outer boundary Maya observed? (1 mark)
(b) What is the large empty space called, and what is its function? (2 marks)
(c) Would human cheek cells show the same features? Explain your answer. (2 marks)

A scientist is studying two organisms: Organism A is a bacterium living in soil, and Organism B is a flowering plant.

(a) Classify each organism as unicellular or multicellular. (2 marks)
(b) Name one organelle that is found in the cells of Organism B but NOT in the cells of Organism A. (1 mark)
(c) Explain why the absence of this organelle means Organism A cannot perform photosynthesis. (2 marks)

During a practical class, two students prepared slides — one of onion leaf cells and one of human cheek cells.

(a) List TWO structures that would be visible in the onion leaf cells but absent in the human cheek cells. (2 marks)
(b) Explain why these structures are important for the survival of the onion plant. (2 marks)
(c) Both cell types have a nucleus. What is the main function of the nucleus? (1 mark)

A farmer noticed that one of his fruit trees was growing very slowly and producing small, pale leaves. A plant scientist told him the tree's cells were not producing enough energy.

(a) Which organelle in the plant cells is responsible for producing energy? (1 mark)
(b) The scientist also mentioned that the tree's cells might not be dividing properly. Name the process by which plant cells divide for growth. (1 mark)
(c) Explain why slow cell division would result in slow growth of the tree. (3 marks)

In a laboratory experiment, a student added a special dye to a sample of Amoeba (a unicellular organism). The dye stained only the nucleus of the Amoeba, making it clearly visible.

(a) Why is the nucleus considered the "control center" of the cell? (2 marks)
(b) Amoeba is a unicellular organism. Explain what this means and describe ONE way Amoeba obtains its food. (2 marks)
(c) Name ONE life process that Amoeba can perform even though it has only one cell. (1 mark)

A group of students compared the cells of a green leaf and the cells of a human muscle under a microscope.

(a) Both cell types contain mitochondria. Explain why muscle cells would have MORE mitochondria than leaf cells. (2 marks)
(b) The leaf cells contain chloroplasts. What is the function of chloroplasts, and what green pigment do they contain? (2 marks)
(c) Why do muscle cells NOT need chloroplasts? (1 mark)

During a cell biology lesson, a teacher explained that a human body starts as a single cell (a fertilized egg) and grows into a baby with trillions of cells.

(a) What type of cell division is responsible for this growth? (1 mark)
(b) Explain why this type of cell division is important for growth and repair of the body. (2 marks)
(c) Name the OTHER type of cell division and state where in the body it occurs. (2 marks)

A biologist placed a plant cell in pure water and observed it under a microscope. She noticed that the cell became firm and swollen, but it did not burst.

(a) Name the structure that prevents the plant cell from bursting. (1 mark)
(b) Explain why the cell became firm and swollen when placed in pure water. (2 marks)
(c) If an animal cell (such as a red blood cell) were placed in pure water, what would happen to it? Explain your answer. (2 marks)

A student was asked to draw and label a typical animal cell. She included the following structures: cell membrane, cytoplasm, nucleus, mitochondria, and ribosomes.

(a) The teacher said her diagram was missing one important structure that animal cells do NOT have but plant cells do. Name this structure. (1 mark)
(b) Explain the function of the cell membrane. (2 marks)
(c) The student learned that ribosomes are very small organelles. What is the function of ribosomes in the cell? (2 marks)

In an experiment, a scientist removed the nucleus from a single-celled organism called Paramecium. The Paramecium survived for a short time but eventually died.

(a) Why did the Paramecium survive for a short time after the nucleus was removed? (2 marks)
(b) Why did it eventually die without a nucleus? (2 marks)
(c) Name ONE other unicellular organism besides Paramecium and Amoeba. (1 mark)

Student Name: ________________________________ Date: ________________
Class / Section: _____________________________ Score: ______ / 50

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