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Biology Proctored Exam Penn Foster Questions and Answers 100% Pass

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Biology Proctored Exam Penn Foster Questions and Answers 100% Pass What is the function of the cell's cytoplasm? To provide a medium for chemical reactions and support organelles. What is the role of DNA polymerase in DNA replication? To synthesize new DNA strands by adding nucleotides c...

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  • September 6, 2024
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Biology Proctored Exam Penn Foster
Questions and Answers 100% Pass
What is the function of the cell's cytoplasm?


✔✔ To provide a medium for chemical reactions and support organelles.




What is the role of DNA polymerase in DNA replication?


✔✔ To synthesize new DNA strands by adding nucleotides complementary to the template

strand.




Which organelle is responsible for producing ribosomal subunits?


✔✔ Nucleolus




What is the primary function of the cell membrane's protein channels?


✔✔ To facilitate the transport of specific molecules across the membrane.




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


✔✔ Mutation




1

,What type of bond is formed between amino acids in a protein chain?


✔✔ Peptide bond




What is the term for the study of how genes are expressed and regulated?


✔✔ Gene expression




Which type of RNA is involved in bringing amino acids to the ribosome during protein

synthesis?


✔✔ tRNA (transfer RNA)




What is the primary role of the chloroplasts in plant cells?


✔✔ To capture light energy and convert it into chemical energy through photosynthesis.




What is the function of the cell's ribosomes?


✔✔ To synthesize proteins based on genetic instructions from mRNA.




What is the purpose of the cell's endoplasmic reticulum (ER)?


✔✔ To synthesize and transport proteins (rough ER) and lipids (smooth ER).

2

,Which part of the cell contains genetic material in eukaryotes?


✔✔ Nucleus




What is the role of the cell’s cytoskeleton?


✔✔ To provide structural support and facilitate movement within the cell.




What process involves the division of a cell's nucleus and is part of cell division?


✔✔ Mitosis




What is the term for the process where a cell undergoes programmed cell death?


✔✔ Apoptosis




Which cell structure is responsible for sorting and packaging proteins for secretion?


✔✔ Golgi apparatus




What is the primary function of the cell’s lysosomes?


✔✔ To digest and break down cellular waste and debris.

3

, What process do cells use to regulate the internal environment, such as nutrient and ion

concentration?


✔✔ Homeostasis




What is the role of the mitochondria in energy production?


✔✔ To convert glucose and oxygen into ATP, water, and carbon dioxide through cellular

respiration.




Which organelle is involved in the synthesis of steroids and lipids?


✔✔ Smooth endoplasmic reticulum




What type of cell division results in the production of gametes?


✔✔ Meiosis




What is the main role of the cell's plasma membrane?


✔✔ To protect the cell and control what enters and exits.




4

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