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Temka [501]
3 years ago
11

hypothesize a mechanism to explain how tissues respond to insulin in different ways, even tisses that have the same amount of re

ceptors
Biology
2 answers:
Sauron [17]3 years ago
5 0

Insulin is secreted by pancreas.

Further Explanation:

<u>Pancreas</u> acts as the endocrine gland as it secretes <u>hormones like insulin</u>. Insulin decreases the blood sugar level.

The glucose is present inside the vesicle present within β- cell of pancreas. When the glucose level enhances in the blood, glucose is transported inside the β- cell by GLUT 2 and a signaling cascade occurs which results in movement of vesicles to the cell membrane and releases the insulin.

<u>Effects of insulin  are:</u>

1. It facilitates the entrance of glucose into adipose tissue and muscle.

2. It induces the liver to store glucose into the glycogen form.

3. It decreases the concentration of glucose into blood.

4. Promotes the synthesis of fatty acid in liver.

<u>Receptors</u> are the molecules that binds to the ligand and starts cascades of signalling reactions. It is present either in the plasma membrane of the cell or in the cytoplasm or nucleus of the cell.

Learn more:

1. Learn more about heart brainly.com/question/7301375

2. Learn more about blood brainly.com/question/8168020

3. Learn more about hormone brainly.com/question/892851

Answer details:

Grade: College biology

Subject: Biology

Chapter: Hormones

Keywords:

Pancreas, endocrine gland, insulin, β- cell, GLUT 2, signaling cascade, glucose, adipose tissue, muscle, glycogen, fatty acid, liver.

soldi70 [24.7K]3 years ago
4 0
<span>The major effects of insulin on muscle and adipose tissue are: (1) Carbohydrate metabolism: (a) it increases the rate of glucose transport across the cell membrane, (b) it increases the rate of glycolysis by increasing hexokinase and 6-phosphofructokinase activity, (c) it stimulates the rate of glycogen synthesis and decreases the rate of glycogen breakdown. (2) Lipid metabolism: (a) it decreases the rate of lipolysis in adipose tissue and hence lowers the plasma fatty acid level, (b) it stimulates fatty acid and triacylglycerol synthesis in tissues, (c) it increases the uptake of triglycerides from the blood into adipose tissue and muscle, (d) it decreases the rate of fatty acid oxidation in muscle and liver. (3) Protein metabolism: (a) it increases the rate of transport of some amino acids into tissues, (b) it increases the rate of protein synthesis in muscle, adipose tissue, liver, and other tissues, (c) it decreases the rate of protein degradation in muscle (and perhaps other tissues). These insulin effects serve to encourage the synthesis of carbohydrate, fat and protein, therefore, insulin can be considered to be an anabolic hormone.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

</span>
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Imagine you do a test cross between a purple-flowered pea plant having serrated leaves (a dominant trait) and a white-flowered p
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Answer:

genes for flower color and edge shape are linked. They do not assort independently.

Explanation:

<u>Available data:</u>

  • test cross between a purple-flowered pea plant having serrated leaves and a white-flowered pea plant having smooth edges.
  • serrated leaves → dominant trait
  • smooth edges → recessive trait
  • purple color → dominant trait
  • white color → recessive trait
  • F1: 4 purple-serrated:1 purple-smooth:1 white-serrated:4 white-smooth.

There are two genes involved in the cross. The expected ratios are 1:1:1:1 because we assume genes assort independently. However, we see a different phenotypic distribution. When phenotypic ratios differ from the expected ones, it means that genes are linked.

To know if two genes are linked in the same chromosome, we must observe the progeny distribution. If individuals, whose genes assort independently, are test crossed, they produce a progeny with equal phenotypic frequencies 1:1:1:1. But if instead of this distribution, we observe a different one, that is that phenotypes appear in different proportions, we can assume that genes are linked in the double heterozygote parent

 

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A _____ country has high population density.
nadezda [96]

Answer:

A. A Densley populated country.

Explanation:

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Linked genes are genes that Select one: a. assort independently. b. segregate equally in the gametes during meiosis. c. always c
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Answer:

d. are found on the same chromosome

Explanation:

Linked genes are genes that <em>sit close together on the same chromosome,</em> this closeness makes higher the probability to inherit them together, meaning they won't follow Mendelian inheritance. Considering this information we can conclude that the correct answer is d. are found on the same chromosome.

I hope you find this information useful and interesting! Good luck!

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A geneticist is studying two traits in the fruit fly - eye color and wing shape. They perform a dihybrid cross. If the genes for
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Answer:

3/16

Explanation:

<u>According to Mendel's law of independent assortment of genes, when a dihybrid cross involves two genes that assort independently and one of the parents is dominant for the two genes and the other is recessive, the phenotypic ratio of the offspring at F2 would be 9:3:3:1</u>. The proportion of the offspring with the dominant parental traits would be 9/16, those with the recessive parental traits would be 1/16, while those with mixed traits would be 3/16 each.

Assuming the eye color is represented by E and the wing shape is represented by W. At F2

     EeWw    x    EeWw

E_W_ - 9/16 (dominant for both eye color and wing shape)

E_ww - 3/16 (dominant for eye color and recessive for wing shape)

eeW_ - 3/16 (recessive for eye color and dominant for wing shape)

eeww - 1/16 (recessive for both eye color and wing shape)

<em>Hence, the proportion of the offspring with dominant phenotype for eye color and recessive phenotype for wing shape would be </em><em>3/16.</em>

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