Biology Proctored Exam Penn Foster Questions and Answers 100% Pass
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Course
Biology Proctor
Institution
Biology Proctor
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...
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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