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3 years ago

9: which of the following is a function of the nucleus? A stores DNA B stores sugars C builds proteins D packaged proteins

Biology

1 answer:

STALIN [3.7K]3 years ago

5 0

Answer:

A. Stores DNA

Explanation:

The nucleus of the cell holds the genetic information of a cell, which is known as DNA. The nucleus is also known as the control center of the cell because it dictates the type of proteins that will be made. These proteins are used for the cellular processes that determines its function.

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3 years ago

Which two sentences describes unethical behavior by a scientist

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The sentence that states that " When Donnie is unhappy with how an experiment has turned out, he chooses not to share his findings with the public or his colleagues"

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3 years ago

Read 2 more answers

In order to determine the rate of photosynthesis (the conversion by plants of carbon dioxide and water into glucose and oxygen),

Rama09 [41]

Answer:

1.6896 grams

Explanation:

Given that:

Total pressure = The pressure of $O_2$ + partial pressure of $H_2O$

∴

The pressure of $O_2$ = Total pressure - partial pressure of $H_2O$

= (754.8 - 17.55) mmHg

= 737.25 mmHg

At standard conditions:

1 mmHg = 0.00131579 atm

∴

737.25 mmHg will be: (737.25*0.00131579) atm = 0.970065928 atm

P ≅ 0.97 atm

The temperature (T) = 293 K

Volume (V) = 1.31 L

Using ideal gas equation

PV = nRT

0.97 × 1.31 = n × 0.0821 × 293

$n = \dfrac{0.97 \times 1.31}{0.0821 \times 293}$

n = 0.0528

mass of oxygen $O_2$ = no. of moles * molar mass

= 0.0528 * 32

= 1.6896 grams

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3 years ago