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What does a stigma do in plants
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What is the organ of reproduction in flowering plants as the crocus and gladiolus?
filaments and ovary
What is chloronema and caulonema?
Chloronema and caulonema are two types of filaments found in mosses. Chloronema filaments are green and involved in photosynthesis, while caulonema filaments are colorless and responsible for growth and branching. Together, they function in the reproduction and development of moss plants.
Do myosin filaments outnumber actin filaments in skeletal muscles?
No, actin filaments outnumber myosin filaments in skeletal muscles. Actin filaments are thin filaments, while myosin filaments are thick filaments. The arrangement and interplay of these filaments during muscle contractions are essential for movement.
Myofibrils are composed primarily of two protein filaments called?
thick filaments and thin filaments
What are cytoskeleton filaments?
Cytoskeleton filaments are protein fibers within cells that provide structure, support, and facilitate cell movement. They include microfilaments (actin filaments), microtubules, and intermediate filaments. These filaments help with cell division, cell shape maintenance, and cell signaling.
What are the 3 types of filaments within a muscle and what protein makes up each filament?
The three types of filaments within a muscle are thin filaments, thick filaments, and elastic filaments. Thin filaments are primarily composed of the protein actin, while thick filaments are made up of myosin. Elastic filaments, which help maintain the structure and elasticity of the muscle, are primarily composed of the protein titin. These filaments work together to facilitate muscle contraction and relaxation.
Are there more thick filaments than thin filaments in smooth muscle?
There more thin filaments than thick filaments in smooth muscle. The ratio is of the thin to thick filaments in the smooth muscle is approximately 15:1.
Do plant cells have a Cyto Skeleton?
Yes, plant cells have a cytoskeleton made up of protein filaments that help maintain the cell's shape, provide mechanical support, and allow for various cellular processes like cell division and intracellular transport. The cytoskeleton in plant cells includes microtubules, actin filaments, and intermediate filaments.
What are the types of filaments found in eukaryotes?
The types of filaments found in eukaryotic cells are actin filaments (microfilaments), intermediate filaments, and microtubules. Actin filaments are involved in cell movement and structure, intermediate filaments provide mechanical support to the cell, and microtubules are important for cell division and intracellular transport.
What are the 3 different types of myofilaments?
The three different types of myofilaments are thick filaments, thin filaments, and elastic filaments. Thick filaments are composed of myosin protein, thin filaments are primarily made of actin protein, and elastic filaments (also known as titin) provide elasticity and stability to the sarcomere.
What makes up myofibrils?
Thin filaments consist primarily of the protein actin, coiled with nebulin filaments. Thick filaments consist primarily of the protein myosin, held in place by tit in filaments.
Which of the following become connected by myosin cross-bridges during muscle contraction A) thin filaments and thick filaments B) thin filaments and t-tubules C) thick filaments and titin filame?
Interactions between actin and myosin filaments of the sarcomere are responsible for muscle contractions. The I bands contain only thin (actin) filaments, whereas the A bands contain thick (myosin) filaments.
