Chapter 5: Cellular Processes — Online MCQ Test
BIOTECHNOLOGY · Grade 11 · CBSE(NCERT)
Practice Chapter 5: Cellular Processes with a free chapter-wise online MCQ test.
This chapter covers: Cell cycle mitosis meiosis cell division membrane transport diffusion osmosis active transport cell communication growth reproduction.
AI-generated questions from basic to board-exam level, with instant results and explanations.
Chapter 5: Cellular Processes — Important Questions & Answers
Which phase of the cell cycle is the period of actual cell growth before DNA replication?
- A. G1 phase
- B. S phase
- C. G2 phase
- D. M phase
Answer: A. G1 phase
The G1 phase is the first gap phase in which the cell grows and performs normal metabolic activities before DNA synthesis begins.
The G1 phase is the first gap phase in which the cell grows and performs normal metabolic activities before DNA synthesis begins.
Which process results in the formation of two genetically identical daughter cells?
- A. Meiosis
- B. Mitosis
- C. Fertilization
- D. Crossing over
Answer: B. Mitosis
Mitosis produces two daughter cells that are genetically identical to the parent cell, maintaining the chromosome number.
Mitosis produces two daughter cells that are genetically identical to the parent cell, maintaining the chromosome number.
During which stage of mitosis do chromosomes align at the equator of the cell?
- A. Prophase
- B. Metaphase
- C. Anaphase
- D. Telophase
Answer: B. Metaphase
In metaphase, chromosomes arrange themselves along the equatorial plane, forming the metaphase plate.
In metaphase, chromosomes arrange themselves along the equatorial plane, forming the metaphase plate.
Which of the following events occurs in anaphase of mitosis?
- A. Chromosomes line up at the equator
- B. Sister chromatids separate and move to opposite poles
- C. Chromatin condenses into chromosomes
- D. Nuclear membrane reappears
Answer: B. Sister chromatids separate and move to opposite poles
In anaphase, the centromeres split and sister chromatids are pulled to opposite poles of the cell.
In anaphase, the centromeres split and sister chromatids are pulled to opposite poles of the cell.
A cell has 46 chromosomes before meiosis begins. How many chromosomes will each daughter cell have after meiosis II?
- A. 46
- B. 23
- C. 92
- D. 12
Answer: B. 23
Meiosis reduces the chromosome number by half, so a diploid cell with 46 chromosomes produces haploid cells with 23 chromosomes each.
Meiosis reduces the chromosome number by half, so a diploid cell with 46 chromosomes produces haploid cells with 23 chromosomes each.