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vodomira [7]
3 years ago
11

What is the role of the cell membrane during active and passive transport?

Biology
1 answer:
Lady bird [3.3K]3 years ago
8 0
Cell membrane is where the ion or molecules pass through
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Which one of the following best describes the functions of carbohydrates with living things?
kozerog [31]

It’s between b and d. I would go with b based on the information below.

The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses. Simple carbohydrates are quick energy sources, but they do not usually supply any other nutrients or fiber. One of the most important functions of carbohydrates is to form a structure called the glycocalyx. This is a coat around the cell.
3 0
3 years ago
What is the average atomic mass of a sample that has two isotopes, one with a mass of 21 amu at 62% abundance and another with a
motikmotik

Answer:

Average atomic mass = 21.38 amu.

Explanation:

Given data:

Mass of first isotope = 21 amu

Abundance of first isotope = 62%

Mass of second isotope = 22 amu

Abundance of second isotope = 38%

Average atomic mass = ?

Solution:

Average atomic mass  = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (62×21)+(38×22) /100

Average atomic mass =  1302 +836 / 100

Average atomic mass = 2138 / 100

Average atomic mass = 21.38 amu.

3 0
3 years ago
What are on the surface of most vertebrate cells, acting as markers of self?
Oliga [24]
It's called major histocompatibility complex protein
4 0
3 years ago
Which kingdom contains organisms that are multicellular,heterotrophic, eukaryotic and lack cell walls
Anastaziya [24]
<span>Animalia -</span><span>  Mammals, amphibians, reptiles, birds, fish, mollusks, and insects are all included in this kingdom.</span>
4 0
3 years ago
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The green molecules are moving from an area of high concentration to an area of low concentration. When will this movement will
Lyrx [107]
C. When there is an equal number of molecules on each side
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2 years ago
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