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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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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