Class notes
Handwritten notes for NEET UG preparation class 11 biology (LOCOMOTION)
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Handwritten notes for class 11 biology NEET UG preparation Chapter - Locomotion
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Some examples from this set of practice questions
1.
Types of movement.
Answer: 1. Amoeboidal movement • Shown by WBC, cytoskeleton elements (microfilaments) • movement by streaming of protoplasm • affected by pseudopodia formation 2. Ciliary movement -by tubular parts of the body -bronchioles and fallopian tube 3. Muscular movement -contractile property -eyelids, jaw, limbs
2.
Force generating proteins
Answer: Actin & myosin
3.
Regulatory proteins
Answer: Tropomyosin & troponin
4.
Structural protein
Answer: Z-line
5.
Actin protein
Answer: Two polymers of filamentous actin wound helically around each other.
6.
Myosin protein
Answer: -made from polymers of meromyosin -ATP binding site + ATPase enzyme
7.
Tropomyosin
Answer: Prevents binding of actin with myosin
8.
Troponin
Answer: Inhibits binding of actin with myosin by masking the active site of actin
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