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morpeh [17]
3 years ago
12

Parathyroid hormone is the major regulator of the plasma concentration of__________ ions

Biology
1 answer:
photoshop1234 [79]3 years ago
4 0

Answer:

Calcium

Explanation:

Parathyroid hormone (PTH) is a hormone that is secreted by the parathyroid gland. It is the major regulator of the plasma concentration of calcium ions. It regulates calcium ions in the kidney, intestine and bones.

In the kidney, is involved in the re-absorption of calcium in distal ducts and the renal collecting duct, it is also involved in activating the conversion of 25-hydroxy vitamin D into 1,25-dihydroxy vitamin D (calcitriol).

In the intestine,  PTH is involved in the absorption of calcium, by increasing vitamin D production.

In the bone, it helps in regulating calcium levels; when serum calcium level is low, PTH stimulates the activity of the osteoclast, to produce more calcium.

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Raising your hand and placing it on the shoulder of a person standing in front of you, requires __________ of the shoulder.
deff fn [24]

Answer:

flexion

Raising your hand and placing it on the shoulder of a person standing in front of you, requires flexion of the shoulder.

Explanation:

During flexion, also known as bending, the angle between the two moving parts is reduced (bones or body parts), again this is just bending in simple terms, which is the case for this question.

6 0
2 years ago
Is energy lost by catabolism or anabolism?​
Darina [25.2K]

Explanation:

Anabolism requires energy to grow and build. Catabolism uses energy to break down. These metabolic processes work together in all living organisms to do things like produce energy and repair cells.

Catabolic reactions release energy, while anabolic reactions use up energy.

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3 0
3 years ago
Latecia conducted an experimental investigation of the gas production of a water plant. She placed a beaker upside down over a w
liberstina [14]

Answer: After several days, a large bubble of gas collected in the upside-down beaker contains OXYGEN.

Explanation:

Plants are known to be be autotrophic (producers) through the use of inorganic substance such as water, carbondioxide and light energy from sunlight in a process known as photosynthesis.

An experiment was carried out by Latecia for investigation of the gas production of a water plant. It's therefore expected that OXYGEN gas which is the by-product given off during photosynthesis in green plants would be collected from the upside down beaker as gas bubbles.

4 0
3 years ago
The bonds within one water molecule are called
cupoosta [38]

Answer:

Cohesion: Hydrogen Bonds Make Water Sticky

Explanation:

Cohesion: Hydrogen Bonds Make Water Sticky

In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.

5 0
3 years ago
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Which of the following examples can cause gene flow between populations?
I am Lyosha [343]
Bird droppings that contain seeds from a different location" is the correct answer. Sometimes when seeds from different areas are ingested, the genetic material is passed on.  
8 0
3 years ago
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