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Viktor [21]
3 years ago
8

Define the term active transport in terms of concentration gradient

Biology
2 answers:
hram777 [196]3 years ago
4 0
<span>Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration—in the direction against some gradient or other obstructing factor (often a concentration gradient).</span>
elena55 [62]3 years ago
3 0
<h2>answer:</h2>

Active transport is the movement of molecules from a region of their lower concentration to a region of their higher concentration

<h2>explanation:</h2>

Active transport is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration—in the way opposite to some gradient or other obstructing factors (often an intensity gradient).

While active transport, particles travel against the concentration gradient - and hence need an input of energy from the cell.

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Brown-eye genes are dominant over blue-eye genes. what is the best explanation for the fact that all the blue-eye alleles have n
Ronch [10]
Dominant genes will come before recessive. Someone with brown-eye and blue-eye genes will have brown eye since it's the dominant one. So sometimes blue -eye allele is hidden because it's not express, but not always.

People with blue eyes must have all blue-eye allele. Therefore, if there are people with blue eyes you can conclude that blue-eye allele has not disappeared in the human population.

If there is no factor that intervenes with population breeding, Hardy-Weinberg equilibrium will be maintained and that can be used to explain why the <span>all the blue-eye alleles have not disappeared in the human population</span>
5 0
3 years ago
Due to a mutation in the HEXA gene, a substance called GM2, normally present in the tissues and nerve cells of the brain, accumu
Olenka [21]

Answer:

Lysosomes.

Explanation:

HEXA (Hexosaminidase A) is the functional enzyme and encoded by the HEXA gene. The main function of this enzyme is the hydroxylation of the gangliosides.

The mutation in this gene leads to the lysosomal storage disease. The GM2 starts accumulating in the lysosomes and causes Tay Sach's disease. This is a genetic disorder that leads to the breakdown of the cells of the spinal cord and the brain.

Thus, the answer is lysosomes.

6 0
3 years ago
What has a coil of wire that rotates between two magnets and as the coil rotates an electric current is created?
Rashid [163]
Ya you are right, it is generator which is used to convert mechanical energy to electrical energy !
6 0
3 years ago
Read 2 more answers
MN
Elodia [21]

Answer:

O silicon (Si)

Explanation:

-Valence electrons are electrons of the outermost shell which can participate in chemical bonding. ... -As in silicon, four electrons are present in the outermost shell, so silicon has Four valence electrons.

4 0
3 years ago
Name two common characteristics crayfish share with annelids
svetlana [45]
<span>Crayfish and Annelids both have segments and most of them are aquatic.Crayfish live in freshwater, they have a joined head and thorax, or midsection, and segmented body. While a basic annelid form consists of multiple segments which each segment has the same set of organs. They survive in aquatic habitats or in damp soil.
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3 0
3 years ago
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