Grade 11 Biology, based on the Ethiopian curriculum:
1. Which of the following is NOT a characteristic of all living organisms?
A) Ability to reproduce
B) Ability to move
C) Metabolism
D) Cellular structure
Answer: B) Ability to move
2. Which part of the cell is responsible for producing energy through cellular respiration?
A) Nucleus
B) Ribosomes
C) Mitochondria
D) Endoplasmic reticulum
Answer: C) Mitochondrim
3. Which of the following is a function of the smooth endoplasmic reticulum?
A) Protein synthesis
B) Detoxification
C) Lipid synthesis
D) Both B and C
Answer: D) Both B and C
4. During which phase of the cell cycle does DNA replication occur?
A) G1 phase
B) S phase
C) G2 phase
D) M phase
Answer: B) S phase
5. What is the role of chlorophyll in photosynthesis?
A) Absorbing light energy
B) Fixing carbon dioxide
C) Producing glucose
D) Transmitting oxygen
Answer: A) Absorbing light energy
6. Which of the following is true about the genetic material in prokaryotic cells?
A) It is linear and found in the nucleus
B) It is circular and located in the nucleoid region
C) It is located in the mitochondria
D) It is divided into chromosomes
Answer: B) It is circular and located in the nucleoid region
7. Which of the following is a difference between mitosis and meiosis?
A) Mitosis results in two identical daughter cells, while meiosis results in four non-identical cells
B) Mitosis occurs in sex cells, while meiosis occurs in body cells
C) Meiosis does not involve DNA replication
D) Mitosis results in four cells, while meiosis results in two cells
Answer: A) Mitosis results in two identical daughter cells, while meiosis results in four non-identical cells
8. In the process of transcription, what is the role of RNA polymerase?
A) To carry the genetic code to the ribosome
B) To synthesize mRNA from DNA
C) To decode mRNA into proteins
D) To replicate the DNA
Answer: B) To synthesize mRNA from DNA
9. Which of the following is true about the fluid mosaic model of the cell membrane?
A) It is made up of a single layer of phospholipids
B) Proteins are embedded within the lipid bilayer
C) It is completely rigid and does not allow movement
D) The membrane proteins are only on the outside of the bilayer
Answer: B) Proteins are embedded within the lipid bilayer
10. Which of the following is a result of natural selection?
A) Genetic variation within a population
B) Equal survival rates for all individuals
C) Decreased biodiversity
D) The evolution of individuals rather than populations
Answer: A) Genetic variation within a population
1. Which of the following is NOT a characteristic of all living organisms?
A) Ability to reproduce
B) Ability to move
C) Metabolism
D) Cellular structure
Answer: B) Ability to move
2. Which part of the cell is responsible for producing energy through cellular respiration?
A) Nucleus
B) Ribosomes
C) Mitochondria
D) Endoplasmic reticulum
Answer: C) Mitochondrim
3. Which of the following is a function of the smooth endoplasmic reticulum?
A) Protein synthesis
B) Detoxification
C) Lipid synthesis
D) Both B and C
Answer: D) Both B and C
4. During which phase of the cell cycle does DNA replication occur?
A) G1 phase
B) S phase
C) G2 phase
D) M phase
Answer: B) S phase
5. What is the role of chlorophyll in photosynthesis?
A) Absorbing light energy
B) Fixing carbon dioxide
C) Producing glucose
D) Transmitting oxygen
Answer: A) Absorbing light energy
6. Which of the following is true about the genetic material in prokaryotic cells?
A) It is linear and found in the nucleus
B) It is circular and located in the nucleoid region
C) It is located in the mitochondria
D) It is divided into chromosomes
Answer: B) It is circular and located in the nucleoid region
7. Which of the following is a difference between mitosis and meiosis?
A) Mitosis results in two identical daughter cells, while meiosis results in four non-identical cells
B) Mitosis occurs in sex cells, while meiosis occurs in body cells
C) Meiosis does not involve DNA replication
D) Mitosis results in four cells, while meiosis results in two cells
Answer: A) Mitosis results in two identical daughter cells, while meiosis results in four non-identical cells
8. In the process of transcription, what is the role of RNA polymerase?
A) To carry the genetic code to the ribosome
B) To synthesize mRNA from DNA
C) To decode mRNA into proteins
D) To replicate the DNA
Answer: B) To synthesize mRNA from DNA
9. Which of the following is true about the fluid mosaic model of the cell membrane?
A) It is made up of a single layer of phospholipids
B) Proteins are embedded within the lipid bilayer
C) It is completely rigid and does not allow movement
D) The membrane proteins are only on the outside of the bilayer
Answer: B) Proteins are embedded within the lipid bilayer
10. Which of the following is a result of natural selection?
A) Genetic variation within a population
B) Equal survival rates for all individuals
C) Decreased biodiversity
D) The evolution of individuals rather than populations
Answer: A) Genetic variation within a population