Questions with Complete Solutions
What is the main function of chloroplasts in plant cells?
- A) Cellular respiration
- B) Protein synthesis
- ✔✔C) Photosynthesis
- D) Waste removal
What happens during the process of transcription?
- A) DNA is replicated
- ✔✔B) DNA is used to synthesize mRNA
- C) Proteins are synthesized
- D) Ribosomes are produced
What is the function of stomata in plants?
- ✔✔A) Gas exchange
- B) Photosynthesis
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,- C) Energy storage
- D) Water absorption
What is the role of nitrogenous bases in DNA?
- A) They provide structural support
- ✔✔B) They carry genetic information
- C) They store energy
- D) They protect the cell
What is the significance of homologous structures in evolution?
- ✔✔A) They indicate a common ancestor
- B) They serve identical functions
- C) They evolve independently
- D) They provide energy
What is the primary source of energy for all living organisms?
- A) Water
- B) Carbon dioxide
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,- ✔✔C) The sun
- D) Oxygen
How do mutations affect genetic diversity?
- A) Mutations reduce genetic diversity
- B) Mutations have no effect on genetic diversity
- ✔✔C) Mutations increase genetic diversity
- D) Mutations eliminate genetic diversity
What occurs during the process of translation?
- ✔✔A) mRNA is used to synthesize proteins
- B) DNA is replicated
- C) Glucose is broken down
- D) ATP is produced
What is the role of ATP in cellular activities?
- A) It stores genetic information
- B) It carries oxygen
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, - ✔✔C) It provides energy for cellular functions
- D) It regulates cell division
How do ecosystems maintain balance?
- A) By overproducing resources
- ✔✔B) Through the interactions between producers, consumers, and decomposers
- C) By eliminating predators
- D) By reducing biodiversity
What is the primary function of the cell membrane?
- A) Energy production
- B) Protein synthesis
- ✔✔C) Regulation of substance movement
- D) DNA replication
How do photosynthesis and cellular respiration relate to each other?
- A) They are completely unrelated
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