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pychu [463]
3 years ago
11

The fluid mosaic model describes the___.

Biology
2 answers:
melomori [17]3 years ago
7 0

Answer:

The correct answer is B.cell membrane

Explanation:

The fluid mosaic model describes the mosaic nature of the cell membrane. Fluid mosaic modal signifies that the plasma membrane is made up of lipid bilayer which is not fully rigid and gives fluidity to its membrane.

Due to this fluidity, components of the plasma membrane, like various plasma membrane proteins move freely in the membranes. This elasticity of the plasma membrane allows some proteins to do flip-flop movement.

These movements of plasma membrane components play important role in the cell signaling and transport of molecules across the cell. Therefore the correct answer is B.cell membrane.

luda_lava [24]3 years ago
5 0
Describes the B. cell membrane
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Children's steady growth, brain maturation, and intellectual advances make middle childhood a time for more _____.
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Children's steady growth, brain maturation and intellectual advances help in making the middle childhood a time for more independence.

The middle childhood ranges from six to twelve years of age and is a very important phase for the growth and development of a child. It is in this stage of life that a child gains social, cognitive, emotional and physical advancements. The middle childhood basically lays the foundation for adulthood. The brain maturation in this phase involves the growth of certain structures like the frontal lobe which enhances learning and decision making. Steady growth and all the intellectual advancements aid in generating a sense of autonomy and independence in children. This helps in refining the child's capabilities.

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4 0
3 years ago
All of the following enhance water transport in terrestrial plants except: a) hydrogen bonds linking water molecules. b) capilla
Nimfa-mama [501]

Answer:

D) K being transported out of the guard cell.

Explanation:

The movement of water in the terrestrial plants is a very important factor as each cell of the plant require water to survive.

The movement of water is influenced by many physical, chemical and process going on in the plants like transpiration and stomatal opening and closing.

Water posses adhesion and cohesion properties which allow the water molecules to form a bond with other surface and with each other respectively. This allows the movement of water in the xylem by a process called capillary action.

The evaporation of water creates a pressure on the plant to absorb water from the soil but when potassium ions move out of the guard cell of stomata, the guard cells lose turgidity and stomata gets closed.

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Answer:

D

Explanation:

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