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3 years ago

What is the structure of hemoglobin and how is oxygen bound to it?

Biology

1 answer:

Rasek [7]3 years ago

8 0

Hemoglobin has tetrahedral structure containing four heme groups that surround a globin group.

Heme is ringlike organic compound also known as a porphyrin to which an iron atom is attached. There are four iron atoms that bind four oxygen atoms and transport them to tissues.

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1. What are Chargaff's rules?

kotegsom [21]

1)Chargaff's rules state that DNA from any cell of any organisms should have a 1:1 ratio of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine. This pattern is found in both strands of the DNA.

2)DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

3)A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.

4)DNA replication is said to be semi-conservative because of this process of replication, where the resulting double helix is composed of both an old strand and a new strand. ... Semiconservative replication would produce two copies that each contained one of the original strands and one new strand.

5)The diagram has show in above.

6)complementary base pairing is necessary because the double helix shape would not be the same if not. Doubles would only pair with doubles and the singles to singles.

HOPE THIS HELPS YOU.

7 0

3 years ago

What is the axial skeleton?

MariettaO [177]

Answer:

Bones that protect the internal organs

Explanation:

Your axial skeleton protects and cushions your brain, spinal cord and organs! <3

8 0

1 year ago

Dense irregular connective tissue without a synovial cavity would be found connecting the bones involved in which type of joint?

Yakvenalex [24]

Answer:

Fibrous is the type of joint involved.

Explanation:

Diarthrosis is present at articulating bones which is responsible for the movement. Surrounding synovial capsules identifies it. synovial capsules which secretes synovial fluids to nourish and lubricate the joints while it acts as a shock absorber, surrounds the bones of synovial joints.

Smooth, hyaline cartilages which is of glass like, reduces the friction while movement and are present at the lower of the joint bones. this synovial cavity and regular, dense connective tissue which is responsible for the formation of articular capsules related with accessory ligaments.

3 0

3 years ago

The disease osteoporosis often results from insufficient intake of dietary calcium salts. Of the three samples of bone you teste

Fittoniya [83]

The correct answer is the one that shows a bone having the most porous appearance inside.

Osteoporosis is a disease of the different types of bone tissue that make up bone ("cortical bone" and "trabecular bone").

It is a disease that is related to a decrease in the amount of bone tissue in the bones and / or an alteration of its structure: thinning of the cortex and bone trabeculae that become porous.

The cause is an imbalance between the deficit activity of osteoblasts and normal osteoclastic bone resorption.

6 0

3 years ago

The type of vegetarian who eats vegetables, grains, fruits, eggs, and milk but excludes all other types of animal proteins is ca

Leona [35]

Answer: "lacto-ovo-vegetarian" .
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7 0

3 years ago