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artcher [175]
4 years ago
11

Smooth muscle cells lack which protein(s)?

Biology
1 answer:
LuckyWell [14K]4 years ago
3 0

The correct answer is C. troponin only.

The smooth muscle cells contain similar elements like the cardiac and skeletal muscle cells including actin, myosin and tropomyosin but they contain troponin.

Smooth muscle tissues are non striated and produce their own connective tissue called endomysium. Smooth muscle cells also lack sarcomeres but have other thin and thick filaments along with actin and myosin contractile proteins.

Due to lack of troponin the cross bridge formation is regulated by the regulatory protein calmodulin instead of the troponin- tropomyosin complex.


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Write any two advantages of transpiration to a plant .Given below is a set of five terms. Rewrite
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Answer:

Transpiration:

Losing the water absorbed by the plant through its aerial parts in the form of water vapor to the atmosphere. Water is absorbed by roots from the soil and transported as a liquid to the leaves via the xylem to mesophyll cells, through intercellular spaces, and moving through substomatal space to the stoma. The leaves and aerial parts have small pores that allow water to moves as a vapor.

Advantages:

With the transpiration exchange of gases also takes place.

Excess amount of water removed from the plant body.

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Cooling the exposed aerial parts of the plant to the sun and warm winds.

The osmotic balance of the plant cell is regulated by the process of transpiration.

The logical sequence in order to loss of water due to transpiration is as follows:

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What is the function of hemoglobin?<br><br> A. to carry oxygen<br><br> B. to carry carbon dioxide
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A. To carry oxygen

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Why is the ability to bioluminesce beneficial? signals may be sent out to communicate an interest in mating it can camouflage th
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The correct answer is B) binds to the complementary sequence of target mRNAs

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