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Dafna1 [17]
3 years ago
5

What is PM 2.5 and how does it affect people?​

Biology
2 answers:
Over [174]3 years ago
8 0
Particles in the PM 2.5 size range are able to travel deeply into the respiratory tract
Lorico [155]3 years ago
5 0
Fine particles (PM2.5) pose the greatest health risk. These fine particles can get deep into lungs and some may even get into the bloodstream. Exposure to these particles can affect a person's lungs and heart.
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Glucagon works by:
elixir [45]

Answer: option C - activating second messengers and stimulating glycogenolysis and gluconeogenesis.

Explanation:

Glucagon is an hormone, produced by the pancreas, that opposes the action of insulin by stimulating the production of SUGAR.

Glucagon is usually released whenever blood glucose levels is detected to be LOW. it works by activating secondary messengers.

3 0
4 years ago
A new microorganism is isolated from a lake and is placed into a solution of KCl. The voltage difference across its membrane is
Leona [35]

Answer: \Delta U= 1.922x10⁻²⁰ Joules

Explanation: <u>Electric</u> <u>Potential</u> <u>Energy</u> (U) is the energy a charged object has due to its location in an electric field and it will only exist with the object is charged.

<u>Voltage</u> or <u>Electric</u> <u>Potential</u> <u>Difference</u> (V) is external work done to move a charge from one point to another in a electric field.

These terms have a relationship, which is given by:

\Delta U=q\Delta V

where

q is the charge

Proton is positive and has a charge of 1.6x10⁻¹⁹C.

Unit for potential energy is Joule (J). The relation between mV and J is

1mV = 10⁻³J

Then:

V = 120x10⁻³

V = 0.12

So, for a proton to move from the negative side of a membrane to the positive:

\Delta U=q\Delta V

\Delta U=1.6.10^{-19}.0.12

\Delta U = 1.922 x 10⁻²⁰

Energy necessary to transport a proton from negative side of the membrane to the positive is 1.922 x 10⁻²⁰J.

4 0
3 years ago
Which would most likely be true in osteoporosis? osteoclast activity is high. osteoclast and osteoblast activity are normal. ost
Setler [38]
Its 8 please help me

5 0
4 years ago
C6H12O6 + O2 --&gt; CO2 + H2O + ATP
stiks02 [169]

There are, 7 Carbon atoms, 10 Oxygen atoms, 12 Hydrogen atoms in the reactants and 1 Carbon atom, 3 Oxygen atoms, 2 Hydrogen atoms in the products.

<h3>How to count the number of atoms in reactants and products?</h3>

  • Write down the chemical formula that is:
  • C_{6} H_{12} O_{6} + O_{2} → CO_{2} + H_{2} O + ATP

  • List all the atoms present in the equation:

C

H

O

  • Count the number of atoms of the element of each molecule in the reactant.

C=6

O=8

H=12

  • Count the number of atoms of the element of each molecule in the Product.

C=1

O=8

H=2

Hence there are,  6 Carbon atoms, 8 Oxygen atoms, 12 Hydrogen atoms in the reactants and 1 Carbon atom, 3 Oxygen atoms, 2 Hydrogen atoms in the products.

Refer the following link to know more about Atoms in equations:

brainly.com/question/7181548

#SPJ1

5 0
2 years ago
Describe the construction of a recombinant plasmid containing the gene for luciferase and the insertion of the plasmid into a ba
skad [1K]

Answer:

look it up.

Explanation:

4 0
3 years ago
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