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Mila [183]
2 years ago
13

active transport moves mineral ions into root hair cells through cell membrane proteins. Explain how protein molecules move ions

across a membrane during this process. (3marks)
Biology
1 answer:
hodyreva [135]2 years ago
7 0

Explanation:

Small and nonpolar (hydrophobic) molecules can freely pass through the membrane, but charged ions and large molecules such as proteins and sugars are barred passage.

Nonpolar and small polar molecules can pass through the cell membrane, so they diffuse across it in response to concentration gradients.

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Which term describes the coordinated action between two microorganisms that result in a heightened response or greater effective
Delvig [45]

Answer:

Synergism

Explanation:

Synergism is defined as the cooperation of two or more microorganisms that result in a heightened response or greater effectiveness.

8 0
2 years ago
The American Heart Association recommends eating at least _______ ounces of oily fish per week to help reduce your risk of heart
Vikki [24]
The American Heart Association recommends eating at least 7 <span>ounces of oily fish per week to help reduce your risk of heart disease.

In short, Your Answer would be Option A

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6 0
3 years ago
Read 2 more answers
Which of the following is not a true statement comparing exoskeletons and endoskeletons?
nordsb [41]

Answer:

Exoskeletons provide less mechanical leverage.

Explanation:

There are two types of skeleton in living beings: the endoskeleton (which vertebrates possess, is lined with epithelial tissue and has bones and cartilage) and the exoskeleton, a skeletal structure that is located outside the body of the living being. , is an external skeleton. They are common in invertebrate animals, which have no internal bone structure.

The exoskeleton is a tough but flexible outer layer, not formed by bones, unlike the vertebrate endoskeleton. Its function is mechanical, chemical and biological protection, avoid excessive water loss, muscle support and serves as a connecting point for legs, wings and other appendages. However, this type of skeleton provides less mechanical leverage.

On the other hand, the endoskeleton is the name given to the internal skeleton, which is inside the body. This body structure is mainly seen in vertebrate animals and has the function of supporting and moving the body, as well as protecting some internal organs. Unlike exoskeleton, the endoskeleton provides more mechanical leverage.

4 0
2 years ago
The heart exhibits _____, meaning that the heart itself is responsible for initiating the heartbeat.\
xenn [34]
I believe the answer is respiration
4 0
3 years ago
An organism that can make its own food and is composed of many cells that each contain a nucleus belongs to which kingdom?
nataly862011 [7]

1.plantae

Explanation:

hope it helps

4 0
2 years ago
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