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Sergio [31]
3 years ago
12

The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the

cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membranemore acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of ________.
Biology
1 answer:
jarptica [38.1K]3 years ago
4 0

Answer:

Co-transport.

Explanation:

Co-transport may be defined as the process of transport of two molecules across the membrane without the use of energy. Two types of co transport are symport and antiport.

The bacteria transport system import phosphate into the cell. The import of the phosphate depends on pH. Since, the import of phosphate depends on pH and does not depend on the ATPase activity. Here, the phosphate molecules can simultaneously cross the membranes.

Thus, the answer is co-transport.

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A transmembrane protein has the following properties: it has two binding sites, one for solute A and one for solute B. The prote
Usimov [2.4K]

Answer:

The protein is a symport protein.

Explanation:

Transport proteins are proteins which are involved in the transport of solutes across the cell membrane. The binding of the solute to be transported across the membrane causes a conformational change in the shape of the protein, thereby moving the molecule to the side of nthe membrane it is to be transported. The difference in the concentration of the solute across the membrane known as concentration gradient is mainly responsible for the transport of molecules by the transport proteins.

There are three types of transport proteins: uniport, symport and antiport transport proteins.

Uniporters are involved in moving only one molecule across a membrane

Symporters are involved in moving two or more molecule across a membrane in the same direction.

Antiporters are involved in moving two or more molecule across a membrane in opposite directions.

From the description of the transport protein in the question, both solutes A and B are moved across the membrane simultaneously in the same direction. Therefore, the protein is a symport protein.

6 0
3 years ago
Which organism doesn't
Angelina_Jolie [31]

Answer:

D. Fungi

Explanation:

Fungi does not contain the green pigment chlorophyll and therefore are incapable of photosynthesis.

8 0
2 years ago
Which organic molecule is paired with its basic building block?
sergiy2304 [10]

Answer:

D: nucleic acids - nucleotides

Explanation:

The correct monomer for carbohydrates would be monosaccharides

protein - amino acids

and lipid - fatty acids

6 0
3 years ago
Which of the following adaptations allowed plants to transport water and nutrients from the soil to all of the cells within the
kupik [55]

i think it is C) vascular system


6 0
3 years ago
a geneticist notes that crossing a round radish with a long radish produces oval radish. when oval radishes were crossed with ov
stepladder [879]

If the shape of radish is under the control of one gene, for example A than we can say:

AA is dominant homozygous genotype-round radish phenotype,

aa is recessive homozygous genotype-long radish phenotype

If we cross round and long radish:

P: AA  x  aa

F1: Aa  Aa  Aa  Aa  

Aa is heterozygous genotype-oval phenotype

If we than cross the F1:

Aa  x  Aa

F2: AA  Aa  Aa  aa

This means that the ratio between the phenotypes woul be  1:2:1 (round:oval:long).


4 0
3 years ago
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