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Juli2301 [7.4K]
4 years ago
7

The relative concentration of each in the plasma membrane is partly regulated by the:_______

Biology
1 answer:
hodyreva [135]4 years ago
4 0

Answer:

<u>ion channels</u>

Explanation:

The plasma membrane plays a critical role in regulating and maintaining ionic potential inside the cell, relative to ionic concentration present outside the cell. The ion channels are specific, in that they only recognize and allow particular ions to pass through and block the rest. Their opening and closing depends on the ionic potential during that time period.

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If there are 10 chromosomes in a particular cell at the start of prophase how many will be present in the same cell at the end o
Ilia_Sergeevich [38]

Answer:

20 chromosomes

Explanation:

Mitosis is a kind of cell division that results in daughter cells with same number of chromosomes as the parent cell. It involves stages including Prophase, Metaphase, Anaphase and Telophase. In prophase, the Chromatin condenses into Chromosomes.

In Anaphase stage, the 10 chromosomes as mentioned in the question divides into opposite poles of the cell. One individual chromosome contains two sister chromatids, which actually separates in the Anaphase stage. Hence, at the end of the Anaphase stage, there will be 10 chromatids each at opposite poles of the cell. Each chromatid at this stage is considered a chromosome.

Hence, a cell with 10 chromosomes will contain 20 chromosomes (10+10 chromatids on each pole) in the Anaphase stage just before the cell divides into two in a process called CYTOKINESIS.

4 0
3 years ago
A common mechanism of injury for an anterior tibiofibular ligament sprain is When icing an athlete with an ice bag and elastic w
Andrej [43]

Answer:

The correct answer will be

1. Inversion

2. 20-25 minutes

Explanation:

The injuries of the ligaments of the ankle are common among athletes like the anterior tibiofibular ligament sprain (AFTL) or calcaneofibular ligament (CFL) which are caused by the inversion of the flexed foot.

These cases of ankle sprains are treated with the rest and applying ice to the injured area for approximately 20-25 minutes repeated for  3-4 times per day.

Thus, Inversion and 20-25 minutes are the correct answer.

4 0
4 years ago
11. Consider the sequence shown, determine the complementary RNA and the amino acids
mezya [45]
ATG, CAT, AAA, CGT, GTG

adenine, thymine, guanine
cytosine, adenine, thymine
adenine
cytosine, guanine, thymine
guanine, thymine

for RNA, you’ll just do the opposite of what the DNA strand says..... so A pairs with T and C pairs with G

for the actual acids, you’ll just list the names of the RNA sequence, which could be adenine, thymine, guanine, or cytosine
8 0
3 years ago
Knowledge of biology can promote advances by helping all people make
Deffense [45]
Biology helping with medical research and treatment
8 0
3 years ago
During aerobic cellular respiration, what combines with hydrogen ions and the product is released as a by-product of respiration
Rufina [12.5K]
 The correct answer is C, Oxygen.
During aerobic cellular respiration, oxygen combines with hydrogen ions and water is released as a by-product of respiration. 

Explanation; 
Cellular respiration allows organisms to release energy stored in chemical bonds of glucose, and other nutrients. The energy in glucose or other nutrients such as fats is used to produce ATP, which cells use to supply their energy needs. During aerobic respiration (in presence of oxygen), oxygen is reduced and water is produced together with carbon dioxide as by-products. 
8 0
3 years ago
Read 2 more answers
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