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nordsb [41]
3 years ago
9

What is the ability of a cell membrane to allow materials to pass through it called?

Biology
2 answers:
beks73 [17]3 years ago
8 0

Answer:

The cell membrane is selectively permeable, allowing only certain substances to pass through. Passive transport is a way that small molecules or ions move across the cell membrane without input of energy by the cell. The three main kinds of passive transport are diffusion, osmosis, and facilitated diffusion.

Explanation:

Sedaia [141]3 years ago
6 0

Answer:

Learning

Explanation:

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How might an overpopulation of nutria affect other organisms living in the wetlands?
Romashka-Z-Leto [24]

Answer: They consume flora, they eat the entire plant including the roots, which means they are less likely to grow back.

Explanation:

6 0
3 years ago
Match the tissue with its primary fuel source: 1) brain A) fatty acids 2) resting skeletal muscle B) glucose 3) heart C) glucose
Dahasolnce [82]

Answer:

a) 1:B; 2:C; 3:A; 4:B; 5:C

Explanation:

Primary fuel source for tissues can be defind as the source of energy required for proper functioning of different tissues.

Brain consider glucose, a form of sugar to fuel cellular activities. Food provide glucose energy and through blood brain cell recieves the glucose.

Primary fuel source in resting skeletal muscle are glucose, fatty acids, amino acids that depends on the muscular activity and further participate in the citric acid cycle for oxidation to CO2.

Primary fuel of heart is fatty acids which carry important beta-oxidation equipment and serve as fuel for heart functions.

Glucose is the primary source of energy for adipose tissue which on breakdown contribute to ATP synthesis.

Liver utilises fatty acids, glucose and amino acids as primary fuel source.  When glucose is present in high quanity, it converted into fatty acids.

Hence, the correct option is a) 1:B; 2:C; 3:A; 4:B; 5:C

5 0
3 years ago
In guinea pigs, black fur (b) is dominant over white fur (w). You have a black guinea pig, and want to try to determine its geno
kompoz [17]

The genotype of the guinea pig that you would want to mate it with the black one is ww, which is also a white guinea pig, as all white guinea pigs must have the genotype ww as w is recessive to b. Also, make sure you know that the black guinea pig should have the genotype of bx, where x is either b or w.

So, if you mate the black guinea pig with the ww guinea pig (white), the offsprings will either be all black, or half black half white.

If the offsprings are all black, you can be sure that the black guinea pig (parent) will have the bb genotype. As each offspring must receive one gene from each parent, so if all the offsprings have black fur, they must have one b gene from the black guinea pig.

On the other hand, if the offsprings are half black half white, the genotype of the black guinea pig (parent) should be bw. This is because in order to have white offsprings, each parent must pass on a w gene so that the offspring would have genotype ww, white.

6 0
3 years ago
In which type of reproduction can cells divide through the process of mtosis?
ICE Princess25 [194]
During asexual reproduction
5 0
3 years ago
When the antibiotic valinomycin is added to actively respiring mitochondria, several things happen: the yield of atp decreases,
Mariana [72]

Valinomycin  is an Ionophores- i.e it makes the inner membrane permeable to compounds which are ordinarily unable to cross.

The amphipathic molecules dissolve in phospholipid bilayers of the mitochondria

It shields the electric charge as the ion passes through the membrane, providing a polar environment for the ion and a hydrophobic face to the other side. mobile carrier catalyzes the electrical movement of K+ across phospholipid bilayers. Hence Accumulation of potassium inside the mitochondria

This dissipates the essential transmembrane electrochemical gradients causing tremendous metabolic upheaval in the mitochondria.






3 0
3 years ago
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