Lamellipodium - Study guides, Class notes & Summaries

BIO 353 Exam Study Questions And Answers With Verified Solutions Filopodia contain receptors that sense the environment and... (a) all filopodia stop moving when the cell is about to extend a lamellipodium (b) as a first step in walking the lamellipodium forms before the filopodium (c) a lamellipodium extends only from filopodia that continue to move (d) two of the above (e) none of the above ANS (e) none of the above. (T/F) Single-celled organisms have a limited number of biomolecular...

Growth cone correct answers the specialized end of a growing axon (or dendrite) that generates the motive forces for elongation - *See Fig. 23.1 (p. 509), Fig. 23.2 (p. 510), Fig. 23.3 (p. 511)* Lamellipodium correct answers a sheetlike extension, rich in actin filaments, on the leading edge of a motile cell or growth cone Filopodium correct answers slender protoplasmic projection, arising rom the growth cone of an axon or a dendrite, that explores the local environment Actin cytoskel...

BIO 353 EXAM STUDY QUESTIONS AND ANSWERS Filopodia contain receptors that sense the environment and... (a) all filopodia stop moving when the cell is about to extend a lamellpodium (b) as a first step in walking the lamelipodium forms before the filopodium (c) a lamellipodium extends only from filopodia that continue to move (d) two of the above (e) none of the above - Ans:-(e) none of the above. (T/F) Single-celled organisms have a limited number of biomolecular machines within them. - ...

cytoskeleton correct answers network of fibrous elements found in the cytoplasm of eukaryotic cells Microfilaments correct answers polymers of the protein actin that are arranged into bundles and networks microtubules correct answers long hollow tubes formed by polymers of the protein tubulin intermediate filaments correct answers tissue specific rope like structures made of related but tissue specific subunit proteins microvilli correct answers exisit as a tight bundle of filaments ...

Growth cone correct answers the specialized end of a growing axon (or dendrite) that generates the motive forces for elongation - *See Fig. 23.1 (p. 509), Fig. 23.2 (p. 510), Fig. 23.3 (p. 511)* Lamellipodium correct answers a sheetlike extension, rich in actin filaments, on the leading edge of a motile cell or growth cone Filopodium correct answers slender protoplasmic projection, arising rom the growth cone of an axon or a dendrite, that explores the local environment Actin cytoskel...

cytoskeleton correct answers network of fibrous elements found in the cytoplasm of eukaryotic cells Microfilaments correct answers polymers of the protein actin that are arranged into bundles and networks microtubules correct answers long hollow tubes formed by polymers of the protein tubulin intermediate filaments correct answers tissue specific rope like structures made of related but tissue specific subunit proteins microvilli correct answers exisit as a tight bundle of filaments ...

What are the 3 different branches of life? - answer-1) Bacteria 2) Archaea 3) Eukaryotes What are the similarities between bacteria, archaea, and eukaryotes? - answer-1) Basic Biochemistry 2) Genetic code 3) Membrane ATPase 4) Ribosome What are the similarities between Bacteria and Archaea? - answer-1) No nucleus or organelles 2) Coupled transcription and translation What are the similarities between Archaea and Eukaryotes? - answer-Similar machinery for handling information (e.g...

This study guide provides an in-depth overview of essential topics for Exam 3, focusing on the polarity and functions of cytoskeletal elements, cell-substrate interactions, actin dynamics, and the cell cycle. Key areas include the polarity of actin filaments, microtubules, and intermediate filaments, the role of actin in cellular structures like microvilli and lamellipodia, and the impact of ATP on actin polymerization. Additionally, the guide explores the functions of various actin-associated p...

Cytoskeleton: A) 3 main components B) main functions -ANSWER A) actin filaments, microtubules, and intermediate filaments B) actin - sense the environment and direct movement microtubules - for transport intermediate - help keep the cell shape, to anchor organelles What are the main similarities and differences between the three components of the cytoskeleton? -ANSWER Main similarities: - all important for cytoskeleton structure - MT & Fila: charged ends; form a highway for m...

1)Pancake-shaped cells explores the environment – moving filopodia with receptors extend from cell surface all over cell and “sense” environment. (1 point) 2) Then in some area filopodia stop moving due to signal received (biochemical cascade changes cell in that area). (1 point) 3) That area restructures to extend large, lamellipodium that pushes out against the plasma membrane; the mechanism causing this is a new network of actin filaments. (1 point) 4) When lamellipodium touche...