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IRISSAK [1]
3 years ago
15

Can you help me find the right word of the sentence!

Biology
1 answer:
andreev551 [17]3 years ago
3 0
Umm i cant really read it...your hand writing it hard to see
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Can malaria be transmitted through blood transfusion
Arturiano [62]
Yes, malaria is spread through inspect bites or stings and can possibly be spread through unsanitary needles. Therefore, malaria is HIGHLY contagious and can be spread through even a SINGLE DROP of blood.
4 0
3 years ago
7. Considere un sistema que contiene un mol de un gas monoatómico retenidito por un pistón. ¿Cuál es el cambio de energía intern
weqwewe [10]

Un mol de un gas monoatómico cuyo calor absorbido es 40.0 J y cuyo trabajo recibido es 200.0 J experimenta un cambio de energía interna de 240.0 J.

Tenemos un mol de un gas monoatómico en un recipiente con un pistón y suceden las siguientes transferencias de energía:

  • El gas absorbe 40.0 J de calor, ya que Q > 0.
  • El gas recibe 200.0 J de trabajo, ya que Q > 0.

Podemos calcular el cambio de energía interna del gas (ΔU) usando la siguiente fórmula.

\Delta U = Q + W = 40.0 J + 200.0 J = 240.0 J

Un mol de un gas monoatómico cuyo calor absorbido es 40.0 J y cuyo trabajo recibido es 200.0 J experimenta un cambio de energía interna de 240.0 J.

Aprende mas: brainly.com/question/21913262

<em>7. Considere un sistema que contiene un mol de un gas monoatómico retenidito por un pistón. ¿Cuál es el cambio de energía interna del gas, Q: 40.0 J y W: 200.0J?</em>

4 0
2 years ago
In your own words, write the definition of each of the words below. Theory:
wlad13 [49]

Answer:

Theory: <u>A theory is a carefully thought-out explanation for observations of the natural world that has been constructed using the scientific method, and which brings together many facts and hypotheses.</u>

6 0
2 years ago
Based on your observations, which way does earth rotate—from east to west, or west to east? Explain your answer.
JulijaS [17]

Based on my observations, the earth rotates from west to east about the axis of rotation. The counter-clockwise rotation of the earth is as viewed from the North Pole star Polaris.

My observations supporting the counter-clockwise rotation of the earth are:

  • The Sun rises in the east and sets in the west.
  • All celestial objects including the stars and the moon rise in the east and set in the west.

The rotation is the result of the strong geomagnetic field of the earth. It is also responsible for the formation of day and night on the planet.

Learn more about the Rotation of the earth:

brainly.com/question/24246687

6 0
11 months ago
DCCD (dicyclohexylcarbodiimide) inhibits oxidative phosphorylation when the substrate is mitochondrial NADH. DCCD is a drug that
VARVARA [1.3K]

Answer:

A) Decreases cellular energy production

B) DCCD also affects K+ transport

Explanation:

A) Consequences are of DCCD on cellular energy production: <em>Decreases cellular energy production</em>

ATP-synthase pump is composed of two subunits: F1 catalytic subunit that synthesizes ATP, and F0 proton pumping subunits, that transport H+ through the membrane. F1 subunit might act independently of F0 to produce ATP, but this molecule can not be released without H+ gradient, which generates a movement necessary for ATP release from the catalytic center.

When any of the parts composing F0 react with DCCD, the subunit can not transport H+ through the membrane. DCCD inhibits the enzyme activity by blocking the protons´ flow.

As DCCD blocks the protons´ flow, and the protons´ flow is necessary to release the ATP molecule from the F1 subunit, no other ADP + Pi can enter to F1 subunit, and the production of ATP stops.

B) Other cellular effects of DCCD

There seem to be other effects of DCCD on cell activity, some of which are still under study. To name a few:

  • Diimide from DCCD seems to stimulate cytochrome b reduction and inhibits its reoxidation by ferricyanide.
  • When exposing the cell to high concentrations of DCCD for a long time, might occur an alteration in the electron transporting chain
  • Inhibition of ubiquinol-cytochrome c reductase activity when exposing the cell to high concentrations of DCCD.
  • Inhibition of K+ transport, associated with the inhibition of H+ transport.

Concerning the effect of DCCD on the K+ transport, DCCD stops the extrusion of H+ and the consequent intrusion of K+.

DCCD strongly inhibits the simultaneous flow of H+ and K+. First, it inhibits H+ flow, acidification of the environment stops, but at this point, K+ keeps moving through the membrane. Once the H+ flow has ceased, the K+ flow slowly decreases until it finally stops moving. There is a lag time in the DCCD effect on K+ flow to the instantaneous effect on H+ flow.

5 0
3 years ago
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