Cell Biology & Neuroscience Lecture 2 Quiz

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Which scientist(s) proposed the cell theory?

Isaac Newton

Robert Hooke (correct)

Gregor Mendel

Charles Darwin

What is the basic unit of life according to the cell theory?

Molecules

Atoms

Cells (correct)

Tissues

Who is known for the discovery of cells using a microscope?

Rudolf Virchow

Matthias Jakob Schleiden

Anton van Leeuwenhoek (correct)

Louis Pasteur

From whom do cells arise according to the cell theory?

Existing cells Signup and view all the answers

Approximately how many cells make up our bodies?

~37 trillion cells Signup and view all the answers

Which organelle is responsible for cellular respiration?

Mitochondria Signup and view all the answers

Which statement about cells is incorrect based on the text?

All cells can move Signup and view all the answers

What term describes cells without a nucleus?

Prokaryotes Signup and view all the answers

Which domain includes organisms that can live in extreme environments?

Bacteria Signup and view all the answers

What is the main component of the cell membrane according to the text?

Phospholipids Signup and view all the answers

What does 'eu-' mean in the context of cell types?

'True' Signup and view all the answers

Which group of organisms are not mentioned in the text as examples of eukaryotes?

Bacteria Signup and view all the answers

What is the main role of actin filaments in the cytoskeleton?

Maintenance of shape Signup and view all the answers

Where does RNA splicing occur in the cell?

Nucleus Signup and view all the answers

What is the main function of rough endoplasmic reticulum (rER)?

Synthesis of secreted and transmembrane proteins Signup and view all the answers

Which organelle is known for its modification of proteins destined for secretion?

Golgi apparatus Signup and view all the answers

What is the size range of mitochondria typically found in cells?

0.5-1 µm x 1-2 µm Signup and view all the answers

What is the optimal pH range for lysosomes to function effectively?

4.5-5 Signup and view all the answers

Which organelle is responsible for detoxifying ethanol in the liver?

Peroxisomes Signup and view all the answers

Which process results in the production of H2O2 (hydrogen peroxide) in peroxisomes?

Fatty acid oxidation Signup and view all the answers

What is the function of mitochondria in terms of Ca2+ storage?

Oxidative phosphorylation Signup and view all the answers

Which organelle degrades unwanted proteins and particles taken up by the cell?

Lysosomes Signup and view all the answers

What type of mutations can lead to mitochondrial disorders like Kearns-Sayre syndrome?

Mutations in nuclear genes encoding mitochondrial proteins Signup and view all the answers