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djyliett [7]
3 years ago
5

Ions can travel directly from the cytoplasm of one animal cell to the cytoplasm of an adjacent cell through _____.

Biology
1 answer:
suter [353]3 years ago
4 0

endoplasmic reticulum

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Prokaryotic bacteria are surrounded by a ____________ that contains the ____________ to regulate the entry and exit of materials
lukranit [14]

Prokaryotic bacteria are surrounded by a cell membrane that contains the transport proteins to regulate the entry and exit of materials through the cell, the cell wall to help maintain cell shape and structure, and the capsule, which aids against drying out and protects bacteria from a host's immune system.

<h3><u>Explanation:</u></h3>

Bacteria are the prokaryotic organisms that are found in every part of Earth. These organisms do have an interesting ultrastructure. The coverings of the bacteria are three in layer. They are

A. The outer capsule.

B. The middle cell wall.

C. The inner cell membrane.

The capsule is the outermost covering of bacteria that is formed of different slimy materials. These materials contains hygroscopic substances which can absorb water from the surroundings even when the water concentration in outside is very very low. This layer of protection outside bacteria help them to protect themselves against drying out at dry conditions.

The middle cell wall is formed of polymers of N acetyl glucosamine and N acetyl muramic acid. This layer is chitin in nature and is strong enough to maintain the shape and size of bacteria irrespective of outer conditions.

The innermost layer of bacteria is cell membrane which is formed of proteins and lipids bilayer and this cell membrane contains different transport for proteins which help in transport of different substances like water and nutrients inside the cell by means of active transport or passive diffusion.

6 0
3 years ago
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Poly" means many and "saccharide" means sugar. Why is
Nataly [62]

Answer: The name means many sugars, so polysaccharide meaning many sugars works for it.

Explanation:

5 0
3 years ago
When the energy symbols stop moving, the temperatures of iron block and water<br> are__________.
VikaD [51]
lower? we are missing some context for this question, but the higher the temperature the more molecules move, so of course, the lower the temperature, the less molecules move
8 0
3 years ago
What is the answer for this question
Llana [10]

Answer:

it's the first one

Explanation:

4 0
2 years ago
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What type of pressure system is represented by the L on this map, and what kind of weather is a likely result?
scZoUnD [109]
The answer would be :  B. High pressure ; sunny weather
air tends to sink near the high-pressure centers, which affected the and somehow prevent cloud formation. Which is why this system tend to bring sunny days

hope this helps
8 0
3 years ago
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