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Tamiku [17]
3 years ago
9

What is the functioning of cell membrane?

Biology
1 answer:
solong [7]3 years ago
5 0
The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. The basic function of the cell membrane is to protect the cell from its surroundings.
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Match each of the following terms with its definition. 1. Mitosisa) The dense, active protoplasm found in the center of the cell
Andru [333]

Answer:

1. Mitosis c) The process of cell reproduction of human tissues that occurs when the cell divides into two identical cells

2. Nucleus a) The dense, active protoplasm found in the center of the cell

3. Cytoplasm b) The watery fluid that surrounds the nucleus of the cell and is needed for growth, reproduction, and self-repair

4. Cell membrane d) The part of the cell that encloses the protoplasm and permits soluble substances to enter and leave the cell

Explanation:

  • Mitosis is the process that undergoes a cell to give two new identical cells. This is how our body makes or renovates tissues.
  • The nucleus is the part of the cell that contains the DNA, which is necessary to synthesize the proteins that the cell and our body need. It is in the center of the cell and has a nuclear membrane that separates it from the rest of the organelles.
  • The cytoplasm is a solution that surrounds the nucleus, and it contains the rest of the organelles that the cell needs for its functions.
  • The cell membrane is the structure that encloses all the cytoplasm and the nucleus. It is made of phospholipids, proteins, and cholesterol, which allows the passage of certain substances.
6 0
2 years ago
A person who fakes symptoms for a goal is called a _________, while a person who fakes a disease for no clear goal has a _______
azamat

Answer:

A person who fakes symptoms for a goal is called a malingerer, while a person who fakes a disease for no clear goal has a factitous disorder:

Explanation:

Malingerer is someone who attempts to shirk or escape from duty/ responsibility by feigning. Malingering is the result of a person desire to gain a reward or avoid something and it is not caused by any physical factors. While Factitious disorder entails a person acting as if he or she has a physical or mental illness.

4 0
3 years ago
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To assess Mendel's law of segregation using tomatoes, a true-breeding tall variety (SS) is crossed with a true-breeding short va
White raven [17]

Answer:

1. The chi-square statistic is 0. The p-value is 1. Not significant at p < .05.

The chi-square statistic with Yates correction is 0.0642. The p-value is .800028. Not significant at p < .05.

Explanation:

2. By generating large sets of data the ratio will remain same (F1 = 3:1, F2 = 9:3:3:1) according to the Chi-Square analysis. In actual reality, it fails to justify by giving a probability value of 1 that is impossible due to the exceptions of Co-Dominance and Incomplete Dominance...

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raden-222 is a naturlly occuing isotope with a half life of 3.8 days if 4.0g of raden 222 gas wewre pumped in a container then h
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1.0g

7.6/3.8=2

1. 4/2=2

2. 2/2=1

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3 years ago
Which characteristic contributes MOST to the survival of the different birds on the islands?
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The main food sources of the birds( the plentiful recourses within the environment occupied by the species)
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