Penn Foster Animal Anatomy and Physiology 1: Lesson 1 Questions and Answers Already Passed
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Penn Foster Animal Anatomy and Physiology 1:
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Penn Foster Animal Anatomy And Physiology 1:
Penn Foster Animal Anatomy and
Physiology 1: Lesson 1 Questions and
Answers Already Passed
What is the function of the nucleolus within the nucleus?
To produce ribosomal RNA and assemble ribosomes.
Which cell structure is responsible for the synthesis of lipids and detoxification of d...
Penn Foster Animal Anatomy and
Physiology 1: Lesson 1 Questions and
Answers Already Passed
What is the function of the nucleolus within the nucleus?
✔✔ To produce ribosomal RNA and assemble ribosomes.
Which cell structure is responsible for the synthesis of lipids and detoxification of drugs?
✔✔ Smooth endoplasmic reticulum
What is the main function of cilia on the surface of certain cells?
✔✔ To move fluids or particles across the cell surface.
What term describes the movement of substances across a cell membrane without energy
expenditure?
✔✔ Passive transport
Which cellular structure is involved in maintaining cell shape and internal organization?
✔✔ Cytoskeleton
1
,What type of cell junction provides strong adhesion between cells in tissues?
✔✔ Desmosomes
What is the role of the centrosome in cell division?
✔✔ To organize microtubules and form the mitotic spindle.
What is the function of vesicles in a cell?
✔✔ To transport materials within the cell and to and from the cell membrane.
Which organelle is involved in the degradation of fatty acids and detoxification?
✔✔ Peroxisomes
What type of connective tissue is found in tendons and ligaments?
✔✔ Dense regular connective tissue
What is the function of microvilli on the surface of epithelial cells?
✔✔ To increase the surface area for absorption.
2
,What type of cellular respiration occurs in the mitochondria and produces the most ATP?
✔✔ Aerobic respiration
Which organ system includes structures such as the skin, hair, and nails?
✔✔ Integumentary system
What is the main difference between prokaryotic and eukaryotic cells in terms of genetic
material?
✔✔ Prokaryotic cells lack a membrane-bound nucleus, whereas eukaryotic cells have one.
What is the role of gap junctions in cellular communication?
✔✔ To allow direct transfer of ions and small molecules between adjacent cells.
Which type of epithelial tissue is specialized for absorption in the intestines?
✔✔ Simple columnar epithelium
What is the role of the rough endoplasmic reticulum?
3
, ✔✔ To synthesize and modify proteins.
What is the primary function of the Golgi apparatus?
✔✔ To modify, sort, and package proteins and lipids for secretion or delivery to other
organelles.
What is the purpose of apoptosis in cellular processes?
✔✔ To remove damaged or unnecessary cells in a controlled manner.
What is the primary function of the cell membrane?
✔✔ To regulate the movement of substances in and out of the cell.
What is the basic unit of structure and function in living organisms?
✔✔ Cell
Which organelle is known as the "powerhouse of the cell"?
✔✔ Mitochondria
4
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