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kherson [118]
3 years ago
12

One signal of a breathing emergency in an infant is: a. sleeping with calm breathing b. breathing calmly and quietly c. making a

wheezing or high-pitched sound d. being awake and alert
Biology
1 answer:
galina1969 [7]3 years ago
7 0
C. making a wheezing or high-pitched sound
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Liula [17]

<u>Mucins</u> are water-soluble, complex glycoproteins that are secreted by goblet cells.

Explanation:

Goblet cells, named after their goblet-like shape, are usually found in the epithelium of respiratory and intestinal tracts in the body. Their main function is to produce mucus (primarily made up of mucins), a slippery combination of proteins, water and sugars, that serves three main functions:

  1. The barrier function: By trapping the unwanted/harmful particles that we inhale and preventing them from entering our system.
  2. The protection function: By keeping the hair-like cilia lubricated and moist to remove the harmful particles.
  3. The defence function: Mucus is made up of certain enzymes, antibodies and proteins that act as a defence mechanism for the body.

A unique property of mucins is their capability to form gels - sticky and viscous substances that work both as lubricants as well as defensive chemical barriers in the body.

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3 years ago
describe the results if you do an experiment to determine the physical properties of tyrosinase. if you run gel filtration and S
katovenus [111]
Gel filtration and SDS-PAGE could be used for <u>determining a molecular weight of proteins</u>, such as tyrosinase. In both methods, molecules are separated based on their size. <u>Gel filtration</u> measures the molecular weight of <u>native proteins</u> and <u>SDS-PAGE</u> measures the molecular weight of <u>denaturated proteins</u>. 
4 0
2 years ago
Ash from a volcanic eruption decreases the amount of available solar energy for a region. How will a decrease in available sunli
Diano4ka-milaya [45]

Answer:

C

Explanation:

Producers require solar energy to start photosynthesis to create the glucose they need, so lower solar energy means less photosynthesis.

4 0
3 years ago
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What is meant by the following statement about the cell membrane?
butalik [34]
Semipermeable means something can be penetrated by a few things. that being said choices A and B can be eliminated.

Choice D would negate semi as it says all polar molecules, leaving choice C as the best answer
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OSMOSIS is a type of ______________ diffusion.
Anna35 [415]

I think the answer is Passive

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