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inessss [21]
2 years ago
10

Which of the following statements about active transport is true?

Biology
1 answer:
Roman55 [17]2 years ago
6 0

Answer:

It results in a higher concentration of molecules on one side of the membrane.

Explanation:

Active transport is the transport of molecules up the concentration gradient. This means that molecules are going from low density to high density. This is the opposite of natural diffusion. So, it requires ATP to move the molecules this way. Diffusion normally occurs to maintain homeostasis and an equal amount of concentration on both sides of a membrane. But, with active transport, since molecules are moving up the gradient, the opposite happens and the concentrations are unequal.

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A caldera is a large volcanoe that forms at a divergent plate boundary true or false
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Explanation:

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Read 2 more answers
Please answer the following questions correctly​
Oksi-84 [34.3K]

Answer:

i.   Name each of the parts labelled I, II, III, IV and V.

                           {5 marks}

I - Crown / Enamel

II - Dentine

III - Cement / Periodontal membrane

IV - Jaw bone / Root

V - Pulp Cavity

ii   What is the function of each of the parts labelled I and III?

                    {2 marks}

I - Protects teeth from harmful bacteria

-- Enable teeth withstand pressure of chewing

-- Cutting / chewing / protects dentine / protect pulp cavity

III - hold tooth firmly (in socket / Jaw bone)

iii  Which of the labelled parts could be affected by tooth decay?

                                   {1 mark}

V - Pulp cavity

iv  State three ways by which tooth decay may be prevented.

                      {3 marks}

→ avoid using sharp-pointed objects

→ avoid having dry mouth

→ use water containing fluorides to wash teeth / mouth

→ avoid smoking

→ the teeth should be cleaned regularly after each meal / remove food particle from the teeth / flossing

→ wash the mouth vigorously after each meal

→ regular visit to the dentist

→ avoid eating too hot foods

→ avoid eating too much sugary food

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Explanation:

6 0
3 years ago
Usualmente la recesiones provocan
Over [174]

Answer:

La recesión provoca un aumento en el gasto público del gobierno para hacer que la economía flote hasta que haya estabilidad. Esta es una característica común en la economía y, como tal, ayuda a amortiguar el efecto de una recesión. Se perderán muchos empleos, aumentando así los niveles de desempleo. Por lo tanto, el gobierno tiene que gastar más para ayudar a los afectados a sobrevivir.

Explanation:

Una alta tasa de desempleo y las malas condiciones económicas llevan al gobierno a un mayor gasto durante el tiempo de recesión. El propósito es ayudar a estimular la economía y ayudarla a sobrevivir las dificultades económicas. Un ejemplo típico es el paquete de estímulo de Obama en los Estados Unidos de América en 2009 en respuesta a la gran recesión.

5 0
3 years ago
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