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Biology Proctored Exam Penn Foster Questions and Answers Already Passed

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Biology Proctored Exam Penn Foster Questions and Answers Already Passed What is the primary function of mitochondria in eukaryotic cells? To produce ATP through cellular respiration Which molecule carries genetic information from DNA to the ribosome for protein synthesis? mRNA (messenger...

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  • September 6, 2024
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Biology Proctored Exam Penn Foster
Questions and Answers Already Passed

What is the primary function of mitochondria in eukaryotic cells?


✔✔ To produce ATP through cellular respiration




Which molecule carries genetic information from DNA to the ribosome for protein synthesis?


✔✔ mRNA (messenger RNA)




What is the basic unit of structure and function in all living organisms?


✔✔ The cell




In which phase of mitosis do the chromosomes line up in the center of the cell?


✔✔ Metaphase




What type of bond holds the two strands of a DNA double helix together?


✔✔ Hydrogen bonds




1

,Which organelle is known as the "powerhouse" of the cell?


✔✔ Mitochondrion




What is the process by which plants convert light energy into chemical energy?


✔✔ Photosynthesis




What is the term for the movement of molecules from an area of higher concentration to an area

of lower concentration?


✔✔ Diffusion




Which macromolecule serves as the primary source of energy for cellular processes?


✔✔ Carbohydrates




What is the role of ribosomes in a cell?


✔✔ To synthesize proteins




Which type of cell division results in four genetically different gametes?


✔✔ Meiosis

2

,What is the function of the cell membrane?


✔✔ To regulate the movement of substances into and out of the cell




What is the name of the process that cells use to replicate DNA?


✔✔ DNA replication




Which organ system is responsible for transporting nutrients, gases, and waste products

throughout the body?


✔✔ The circulatory system




What type of organism can make its own food through photosynthesis or chemosynthesis?


✔✔ Autotroph




What is the process by which cells convert glucose into energy in the presence of oxygen?


✔✔ Cellular respiration




What structure within the cell contains the genetic material?


3

, ✔✔ The nucleus




What is the term for a change in the DNA sequence of a gene?


✔✔ Mutation




What is the role of enzymes in biochemical reactions?


✔✔ To act as catalysts and speed up reactions




Which part of the cell cycle is characterized by cell growth and DNA replication?


✔✔ Interphase




What type of bond forms between amino acids during protein synthesis?


✔✔ Peptide bond




What is the primary role of chlorophyll in plants?


✔✔ To capture light energy for photosynthesis




What is the term for the genetic makeup of an organism?

4

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