WK 1: Intro to Cells

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What is the primary function of the cytoskeleton in a cell?

To convert glucose to ATP
To maintain structural integrity (correct)
To synthesize proteins
To remove waste products

Which organelle is responsible for generating energy for the cell through cellular respiration?

Nucleus
Mitochondria (correct)
Lysosomes
Cytosol

What is the term for the living substance of a cell?

Karyoplasm
Protoplasm (correct)
Cytoplasm
Cytoskeleton

What is the function of lysosomes in a cell?

To remove waste products (C) Signup and view all the answers

What percentage of a cell's machinery is dedicated to making proteins?

A large percentage (C) Signup and view all the answers

What is the approximate number of cells in the human body?

75 trillion (D) Signup and view all the answers

What is the primary function of the cytoskeleton in a eukaryotic cell?

To provide a structural framework (B) Signup and view all the answers

Which organelle is responsible for removing waste products from the cell?

Lysosomes (D) Signup and view all the answers

What is the primary role of microtubules in a eukaryotic cell?

To transport vesicles and organelles (D) Signup and view all the answers

Which of the following is NOT a primary process of a eukaryotic cell?

Photosynthesis (C) Signup and view all the answers

What is the primary function of the nucleolus in a eukaryotic cell?

Synthesis of ribosomal RNA (B) Signup and view all the answers

What is the main difference between euchromatin and heterochromatin?

Euchromatin is involved in transcription, while heterochromatin is not (C) Signup and view all the answers

What is the primary function of mitochondria in a eukaryotic cell?

To convert glucose to ATP (A) Signup and view all the answers

Which of the following is a function of intermediate filaments?

To provide mechanical support (D) Signup and view all the answers

What is the role of the nuclear pore in the nuclear envelope?

To control the movement of molecules in and out of the nucleus (D) Signup and view all the answers

What is the final destination of mRNA after it is transcribed from DNA?

The ribosomes in the cytoplasm (A) Signup and view all the answers

What is the main function of importins and exportins in the nuclear envelope?

To transport molecules into and out of the nucleus (D) Signup and view all the answers

What is the primary function of the endoplasmic reticulum and Golgi apparatus in protein synthesis?

To fold and package protein (D) Signup and view all the answers

What is the primary difference between eukaryotic and prokaryotic cells?

Prokaryotic cells lack a true nucleus (D) Signup and view all the answers

What is the primary function of the major cellular organelles?

To perform specific cellular functions (C) Signup and view all the answers

What is the term for the study of the structure and function of cells?

Histology (A) Signup and view all the answers

What is the name of the bacterium that was discovered to cause most peptic ulcers?

Helicobacter pylori (C) Signup and view all the answers

What is the importance of understanding the basic structure and function of a eukaryotic cell?

All of the above (D) Signup and view all the answers

What was the previous thought on the cause of peptic ulcer disease and gastritis before 1982?

Stress and lifestyle factors (B) Signup and view all the answers

What is the primary function of the Rough Endoplasmic Reticulum?

Synthesis and modification of proteins (A) Signup and view all the answers

What is the main difference between Rough Endoplasmic Reticulum and Smooth Endoplasmic Reticulum?

Presence of ribosomes on the surface (B) Signup and view all the answers

What is the role of the Golgi Complex in protein synthesis?

Modification and packaging of proteins (B) Signup and view all the answers

What is the main function of the Endoplasmic Reticulum as a whole?

Synthesis, storage, and transport of macromolecules (A) Signup and view all the answers

Where do proteins synthesized in the Rough Endoplasmic Reticulum eventually go?

Golgi Apparatus (C) Signup and view all the answers

What is the largest membranous system in a cell?

Endoplasmic Reticulum (A) Signup and view all the answers