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amm1812
2 years ago
14

In studying the origin of the universe, one of the primary unanswered questions is _____. what type of elements formed first app

roximately how long ago it occurred how long it took the earth to form what came before the big bang
Biology
2 answers:
Virty [35]2 years ago
4 0

Answer:

In studying the origin of the universe, one of the primary unanswered questions is <u>what came before the big bang.</u>

Explanation:

The big bang theory can be described as a theory which scientists have proposed to explain how the universe came into existence. This theory predicts how the extremely hot temperatures and dense atmosphere might have given rise to the stars and the galaxies.

Scientists have no idea what happened before the big bang theory. Some scientists predict that there might be another universe which collapsed before the big bang theory. While other scientists claim that there was nothing before the big bang.

Alex73 [517]2 years ago
3 0

Answer:

What came before the big bang.

Explanation:

The Big Bang Theory is a model for the origin of the universe. The model describes the change that the universe has gone through from its conception. It argues that the universe expanded from a high-density and high-temperature state. However, one of the questions that remain unanswered is what came before the Big Bang, as we do not have the knowledge yet to determine whether this event was primordial.

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In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and retur
Fantom [35]

Answer: Cori cycle  consumes more energy,it expended 4ATPs, therefore with poor efficiency.

1 Glyceraldehyde 3-phosphate dehydrogenase.

it is an enzyme which  functions in Glycolysis only, to breakdown the 6th. step of of subtrate phosphorylation of glucose.

2. glucose-6-phosphotase.

This is the enzyme that works in gluconeogenesis only to intiaate its  first step. it hydrolyse glucose-6-phosphate , to generate glucose and phosphate.

Alcohol dehydrogenase

This enzyme does not play any role with both pathways.Rather it catalysis the oxidation of primary and secondary alcohols to aldehyde and ketones. The reaction involves reduction with NADH+

phosphoenopyruvate carboxykinase

functions in the gluconeogensis pathways  for conversion of oxaloacatate to phosphoenopyruvate and CO2.

Phosphofructokinase-1

function as regulatory enzyme of glycolysis to convert  fructose-6-phosphate  and ATP hydrolysis to glucose 1, 6, bisphosphate and ADP respectively.

Phosphoglycerate mutase.

An enzyme involved in glycolytic pathway, it catalysed the 8th step of glycolysis.

Hexokinase- an enzyme of glycolytic pathway invloved in phosphorylation of glucose, to intiate the process of glycolysis.

Pyruvate dehydrogenase

This is an enzyme that converts pyruvate to acetyl Co-A.

therefore it plays no role in the two pathways, because glycolytic pathway ends with pyruvate production.

Explanation:

8 0
2 years ago
Most fungi grow best at pH<br> a. 1<br> b. 5<br> c. 7 <br> d. 9<br> e. 14
scZoUnD [109]

Answer: pH 5 Acidic environment.

Explanation:

The fungi grows best in the acidic environment, this is because the fungi grows in a moist, warm and darker environment.

The fungus grows at lower pH. When the fungal species was grown in the laboratory conditions then under low pH, the fungal species grow more properly.

Hence, the best environment for the growth of fungus is pH 5.

6 0
2 years ago
Read 2 more answers
Of the following items listed below, which is the best description for why skeletal muscle stores glycogen? Of the following ite
mars1129 [50]

Answer:

Skeletal muscle stores glycogen because it is a heavy consumer of energy.

Explanation:

Skeletal fiber contractions are based on different physiological and biochemical phenomena that happen in every cell and that need an amount of energy to occur. During muscle contraction, <em>myosin binds to the uncovered actin-binding sites, producing littles power strokes that, continuously, lead to muscle contraction</em>. To make this process possible, the muscle needs energy.  

Glycogen is a very important energetic reserve polysaccharide for animals. It is stored in the liver and muscles, and when the organism needs energy it degrades glycogen into glucose, which is an available form for the metabolism.  In the liver,<em> glycogen</em> is used to maintain constant levels of <em>blood glucose</em>. While in muscles, glycogen plays an important role in the glucose storage as a source of energy, needed and used only for contraction.

During muscle contraction, ATP molecules obtained from glucose are split to ADP and inorganic phosphate.

3 0
2 years ago
The tentacles of a squid are appendages that have been modified from which primitive molluscan structure?
mojhsa [17]

The correct answer is foot.

Mollusks have more diverse forms in comparison to any other animal phylum. They comprise, the slugs, snails, and other gastropods; squids and other cephalopods; clams and other bivalves; and other lesser known but identically different subgroups.  

The cephalopods like octopuses and squids possess the head, which is prominent and the foot that has been amended into tentacles. The cephalopods have an absent or diminished shell and exhibit the most advanced nervous system of the invertebrates.  


5 0
2 years ago
Read 2 more answers
Different parts of the human digestive system help to break down molecules of fat so
slavikrds [6]

Answer:

Small intestine, liver, bile and lipase.

Explanation:

Digestion of fat occurs in the small intestine. Its digestion occurs with the help of bile, that is made in the liver. Bile breaks the fat into small drops that are easier for the lipase enzymes to change it. Lipase enzymes is a type of enzymes that works only on lipids and lipids are broken down into fatty acids and glycerol. These substances are absorbed by our body and used it for producing ATP for the body.

5 0
2 years ago
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