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Vlada [557]
3 years ago
11

DNA is composed of repeating structural units called what

Biology
1 answer:
Oxana [17]3 years ago
7 0

ANSWER:

-Nucleotide;

-Deoxyribose

DNA is composed of repeating structural units called nucleotide. Deoxyribose is the five-carbon sugar found in DNA.

Explanation;

-Nucleotides are the building blocks of nucleic acids. Nucleotides are linked together to form nucleic acids. The three parts of a nucleotide are; At least one phosphate group , pentose sugar and a nitrogenous base.

-The sugar that is found in DNA is the deoxyribose sugar that is a five carbon sugar in DNA.

give me brainliest plz

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Brrunno [24]

Answer Options:

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Answer:

  • Proteins store energy long term, provide lubrication, and insulate the body

Explanation:

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  • Proteins provide structures in the body, such as hair and muscles  - this is true, for example our hair is made of a protein called keratin
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3 years ago
Why can't you use fresh pineapple in jello
Nataly [62]
Pineapples, unlike most other fruit, contain an enzyme called bromelain, that breaks up the gelatin into it's amino acid building blocks. [Enzymes are biomolecules that catalyze chemical reactions; most of them are proteins themselves.] Due to the bromelain, your jello doesn't become (or stay) solid.
7 0
3 years ago
Cell respiration begins with
irinina [24]

Answer:

Cell respiration begins with Glycolysis .

Explanation:

Glycolysis  is the first and initial step in the cellular respiration. Cellular respiration is the anaerobic process, which takes place in cytosol of the cells. Two molecule of pyruvate(CH3COCOO-) are formed from 1 molecule  of  glucose(C6H12O6)through glycolysis. The  NADH and  ATP are high energy molecules formed when the free energy are released. It is the process which takes place through a series of ten enzyme catalysed reactions. 10 enzymes are required to break down the sugar molecule. It occurs in cytoplasm.

8 0
3 years ago
A person picks up a heavy suitcase in order to estimate its weight and reflexively drops it. Which receptor has initiated this r
Nuetrik [128]

Answer:

The answer is option C.

Explanation:

The question is not complete, here is the complete question:

A person picks up a heavy suitcase in order to estimate its weight and reflexively drops it. Which of the following receptors has initiated this reflex?

A) Free Nerve Ending

B) Lamellae Corpuscle

C) Tendon Organ

D) Bulbous Corpuscle

The answer is option C, the tendon organ. Tendon organ, located in the skeletal muscles, takes on the role of sensing the tension in the muscle so that it can be adjusted appropriately. In this case, the weight of the suitcase was not estimated correctly so the tension of the skeletal muscle was not enough to hold the suitcase.

I hope this answer helps.

8 0
3 years ago
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Scientists use instruments to record the strength of earthquakes in an area . scientific method
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The study of earthquakes is seismology. Scientists (seismologists) use instruments to record the strength of earthquakes in an area. The instrument that is used to measure seismic waves is called seismograph. <span>It records the shaking of the Earth. </span>The size of an earthquake is measured with its magnitude and intensity. 
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