1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marissa [1.9K]
3 years ago
13

How can a molecule that contains an atom of phosphorus be made radioactive using an unstable isotope?

Biology
1 answer:
AVprozaik [17]3 years ago
3 0

Answer:

A radioactive (unstable) phosphorus isotope is made to replace a nonradioactive isotope of phosphorus in the molecule

Explanation:

Phosphorus has both unstable (radioactive) and stable isotopes. In any compound that contains phosphorus, the phosphorus atom present may be either a stable isotope of phosphorus or an unstable isotope of phosphorus.

However, if the molecule contains a stable nonradioactive isotope of phosphorus, it is possible to convert this isotope in the molecule to the unstable radioactive isotope by carefully carrying out exchange reactions in which the phosphorus isotope replaces the nonradioactive isotope in the molecule.

This is usually done in order to create radioactive tracers which are used to study chemical reactions and biochemical processes.

You might be interested in
I'LL GIVE BRAINLIEST IF YOU EXPLAIN THE ANSWER: <br><br> CHOOSE TWO
RoseWind [281]
B and D. The xylem and the phloem make up the vascular tissue of plants and transport water, sugar, and other important substances around a plant.

The cells that die are emptied, leaving hollow cell walls with their ends open, thus forming pipe-like structures

Hope this helps
3 0
3 years ago
A nurse has been administering a drug to a client intramuscularly (im). the health care provider discontinued the im dose and wr
ludmilkaskok [199]
First-pass effect.

  
The first-pass effect involves drugs that are given PO and absorbed from the small intestine directly into the portal venous system, which delivers the drug molecules to the liver. Once in the liver, enzymes break the drug into metabolites; they may become active or may be deactivated and readily excreted from the body. A large percentage of the oral dose is usually destroyed and never reaches tissues. Oral dosages account for this phenomenon to ensure an appropriate amount of the drug in the body to produce a therapeutic action. Passive diffusion is the major process through which drugs are absorbed into the body. Active transport is a process that uses energy to actively move a molecule across a cell membrane and is often involved in drug excretion in the kidney. Glomerular filtration is the passage of water and water-soluble components from the plasma into the renal tubule.
5 0
3 years ago
If an atom has 15 electrons, how many electrons are in the n=1 energy level?
IRISSAK [1]

Answer:

In the n=1 energy level, the atom has 2 electrons

Explanation:

Electrons orbit the nucleus of an atom in multiple rings (energy levels). The first ring of the electron can only hold 2 electrons. After that, electrons are added to the second ring. Excluding the first ring, all other rings can hold a maximum of 8 electrons.

For example, Oxygen is an atom with 6 electrons. The first energy level contains 2 electrons, and the second energy level contains 4 electrons. The second energy level has room for up to 4 more electrons.

In your example of an atom with 15 electrons, there would be 2 electrons in the first ring, 8 electrons in the second ring, and 5 electrons in the third and final ring.

To summarize, all atoms have a first energy level containing 2 electrons, and all other energy levels can contain 8 electrons. This is true no matter the number of electrons.

7 0
2 years ago
Use the drop-down menus to determine where these organelles can be found.
damaskus [11]

Ribosome- Both animal cells and plant cells

Endoplasmic Reticulum -Both animal cells and plant cells

Golgi Apparatus- Both animal cells and plant cells

Cell wall- Plant cells only

Vacuoles-Both animal and plant cells

Lysosomes- Both animal and plant cells

Mitochondria- Both animals and plant cells

Cell Membrane- Both animals and plant cells

Cytoplasm-Both animal and plant cells

Chloroplasts-Plant cells only


Hope it helps have a wonderful day ; )

6 0
3 years ago
Read 2 more answers
Is yeast unicellular or multicellular organisms?
gregori [183]
It is a unicellular organism. Yeast are a polyphyletic group of species within the kingdom fungi. They are predominantly unicellular.
8 0
2 years ago
Other questions:
  • A botanist is studying the effects of different oomycete species on potato plants. She exposes one set of plants to an oomycete
    10·1 answer
  • Dwayne has a green mineral. It most likely contains _____. copper (Cu) aluminum (Al) potassium (K) carbon (C)
    8·2 answers
  • Is the sun indestructible, if it is, why? If not, why not?
    7·1 answer
  • Biocentrism is not considered when looking at life-centered environmental ethics
    7·1 answer
  • Metastasis is the term used to describe the cancer cell's ability to
    14·1 answer
  • The table below shows the elements that mainly comprise each of the four layers of Earth: Elements in Layers Layer Main Elements
    6·2 answers
  • What are three things you can do in your house to reduce the impact on human activity on Georgia's ecosystems?
    12·2 answers
  • Why are bullets shot into a barrel of water for testing?
    12·1 answer
  • Landscapes all over the world are always flat - it's called
    10·2 answers
  • A student examining leaf cross sections under a microscope finds many loosely packed cells with relatively thin cell walls. The
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!