Chapter Exam

Unit 4 Chapter 8: Cell - The Unit of Life — Online MCQ Test

Q: Which of the following is the basic structural and functional unit of life?

Answer: B. Cell — The cell is the smallest unit capable of performing all life processes. Hence, it is called the basic structural and functional unit of life.

Q: Who proposed the cell theory?

Answer: A. Schleiden and Schwann — Matthias Schleiden and Theodor Schwann proposed the cell theory, stating that all living organisms are made of cells.

Q: Which of the following is a characteristic of prokaryotic cells?

Answer: C. Lack of a well-defined nucleus — Prokaryotic cells do not have a true nucleus surrounded by a nuclear membrane. Their genetic material lies in the nucleoid region.

Q: A plant cell placed in a hypotonic solution becomes turgid because:

Answer: C. Water moves into the cell by osmosis — In a hypotonic solution, water enters the cell by osmosis. The rigid cell wall prevents bursting and the cell becomes turgid.

BOTANY · CLASS 11 INTERMEDIATE 1 YEAR · Telangana State Board

Practice Unit 4 Chapter 8: Cell - The Unit of Life with a free chapter-wise online MCQ test for Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR BOTANY. This chapter covers: Focusing on cell biology this chapter details prokaryotic and eukaryotic cell structures cell organelle functions cell membrane models and endomembrane system components.. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Unit 4 Chapter 8: Cell - The Unit of Life — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR BOTANY — Unit 4 Chapter 8: Cell - The Unit of Life, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is the basic structural and functional unit of life?

A. Tissue
B. Cell ✓
C. Organ
D. Organelle

Answer: B. Cell
The cell is the smallest unit capable of performing all life processes. Hence, it is called the basic structural and functional unit of life.

Who proposed the cell theory?

A. Schleiden and Schwann ✓
B. Watson and Crick
C. Robert Hooke and Leeuwenhoek
D. Darwin and Mendel

Answer: A. Schleiden and Schwann
Matthias Schleiden and Theodor Schwann proposed the cell theory, stating that all living organisms are made of cells.

Which of the following is a characteristic of prokaryotic cells?

A. True nucleus with nuclear membrane
B. Membrane-bound organelles present
C. Lack of a well-defined nucleus ✓
D. Chromosomes enclosed in nucleolus

Answer: C. Lack of a well-defined nucleus
Prokaryotic cells do not have a true nucleus surrounded by a nuclear membrane. Their genetic material lies in the nucleoid region.

A plant cell placed in a hypotonic solution becomes turgid because:

A. Water moves out of the cell
B. Water moves into the cell by endocytosis
C. Water moves into the cell by osmosis ✓
D. Cell wall prevents all water movement

Answer: C. Water moves into the cell by osmosis
In a hypotonic solution, water enters the cell by osmosis. The rigid cell wall prevents bursting and the cell becomes turgid.

Which of the following is a correct statement about the cell membrane in the fluid mosaic model?

A. It is a rigid, static layer of phospholipids only
B. Proteins are completely absent from the membrane
C. Lipids provide the basic bilayer and proteins are embedded in it ✓
D. Carbohydrates form the entire outer surface in all cells

Answer: C. Lipids provide the basic bilayer and proteins are embedded in it
The membrane consists of a phospholipid bilayer with embedded proteins, making it fluid and mosaic-like. This model explains its dynamic behavior.

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