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STALIN [3.7K]
3 years ago
14

Almost all amino acids are chiral. The body only uses L amino acids, and proteins are chains of amino acids that in the most sim

ple sense fold up into a single structure by themselves when they are formed. Do you think a cell could live with all D (the opposite of L) amino acids, explain your logic. When I ask 'live', I mean could the organism/cell be composed completely of D amino acids and live (This is just a thought question, don't bother trying to find the answer anywhere…)
Chemistry
1 answer:
MrRissso [65]3 years ago
8 0

Answer:

An organism that is completely composed D amino acids cannot survive.

Explanation:

Most of amino acids in all organism are present in L conformation.As result  in all organism the enzymes are specific for L amino acids but not for D amino acids.

   Bacterial cell wall contain some D amino acids such as D glutamate,D alanine but not entirely composed of D amino acids.

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Liquid A is a homogeneous mixture and Liquid B is a heterogeneous mixture

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3 years ago
A beaker containing 6.32 moles of PBr3, contains___
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Answer:

3.8 x 10²⁴molecules

Explanation:

Given parameters:

Number of moles  = 6.32moles

Unknown:

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The number of moles can be used to derive the number of molecules found within a substance.

Now,

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     6.32 mole of PBr₃ will contain 6.32 x 6.02 x 10²³ = 3.8 x 10²⁴molecules

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A car is heading north on I-10 at 75 mph for 315 miles how long did it take the car to drive this distance
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Base changes phenolphthalein to pink it is true or false​
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For a lake in Michigan, researchers have determined that largemouth bass feed on smaller fish, which in turn feed on zooplankton
allsm [11]

Answer:

the expected decline in largemouth bass is 3,000 kg.

Option d) 3,000 kg is the correct answer.

Explanation:

Given the data in the question;

In 2016, there was 600,000 kg of zooplankton in the lake.

In 2017, an accidental runoff of insecticide near the lake caused a 50 percent decline of the zooplankton population in the lake.

Now,

The remaining mass of zooplankton  after the 50% decline will be;

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⇒ 600,000 × 50/100

⇒ 300,000 kg of zooplankton

Now, with 10 percent trophic efficiency;  smaller fish directly feed on zooplankton; decline in smaller fish mass will be;

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Option d) 3,000 kg is the correct answer.

7 0
3 years ago
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