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3 years ago

Which statement correctly describes the difference between cellular respiration and photosynthesis?

Biology

2 answers:

ipn [44]3 years ago

5 0

Answer:

E. Photosynthesis is an anabolic reaction, and cellular respiration is a catabolic reaction.

Explanation:

Anabolic or endergonic reaction is a type of reaction that uses energy. In this type of reaction small, simple molecules join to make larger complex molecules. For example photosynthesis, during which carbon dioxide and water are react to synthesise glucose and oxygen.

Catabolic or exergonic reaction is a type of reaction that gives energy. in this reaction large molecules are broken down into smaller ones. For example respiration, during which glucose in presence of oxygen is broken into carbon dioxide and water.

Stella [2.4K]3 years ago

5 0

Answer: Option ' E' is correct.

Explanation:

Photosynthesis is an anabolic reaction whereas cellular respiration is a catabolic reaction.

Cellular respiration is called as catabolic because in this process energy is formed in any form by fragmenting the molecules into smaller ones. like glucose is broken down into carbon dioxide and water.

Whereas photosynthesis is an anabolic because in this process compounds are formed like it tales carbon dioxide and water to form glucose.

Hence , option 'E' is correct.

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3 years ago

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The answer is 51.0 ml but can someone explain why please

professor190 [17]

Answer:

$\boxed{\sf A. \ 51 \ mL}$

Explanation:

Amount of water displaced by the sphere will be equal to the volume of complete sphere.

As the sphere completely sinks to the bottom of the cup.

We have been given;

Diameter of sphere (d) = 4.6 cm

So,

$\sf Radius \: of \: sphere \: (r) = \frac{Diameter \: of \: sphere \: (d)}{2} \\ \sf = \frac{4.6}{2} \\ \sf = 2.3 \: cm$

Volume of sphere (V):

$\boxed{ \bold{V = \frac{4}{3} \pi {r}^{3} }}$

By substituting value of r we get:

$\sf \implies V = \frac{4}{3} \times \pi \times {(2.3)}^{3} \\ \\ \sf \implies V = \frac{4}{3} \times 3.14 \times 12.167 \\ \\ \sf \implies V = \frac{152.81752}{3} \\ \\ \sf \implies V = 50.94 \: {cm}^{3} \\ \\ \sf \implies V \approx 51 \: {cm}^{ 3}$

1 cm³ = 1 mL

$\therefore$

V = 51 mL

So,

Water displaced by the sphere = 51 mL

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3 years ago