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Ivanshal [37]
3 years ago
7

What 2 biomolecules make up the cell membrane?

Biology
1 answer:
ryzh [129]3 years ago
4 0

Answer:

Cell membranes: Lipids, protein and carbydrates

Diffusion is the movement of materials across a membrane of greater concentration gradient to lower concentration gradient.

Osmosis is the movement of a solvent (usually water) across a selectively permeable membrane.

Active transport is the movement of materials against concentration gradient at the expense of energy.

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Explain how scientists know what stars are made of.​
natita [175]

Answer:

Scientists are perhaps some of the smart few that make up the human population and are never short on knowledge. They research and discover and conduct tests to gain more knowledge, but the answer to your question is stars are huge celestial bodies made mostly of hydrogen and helium that produce light and heat from the churning nuclear forges inside their cores, and scientist know this because of their research.

Explanation:

7 0
3 years ago
A jar contains 26 fluid ouncesbof spaghetti sauce. How many cups of spaghetti sauce do 4 jars contain
JulijaS [17]

____________________________________________________

Answer:

Your answer would be 13 cups of spaghetti sauce.

____________________________________________________

Explanation:

Lets break down this question to make the answer easier:

8 ounces = 1 cup

We are going to use the above to help us solve this question.

In your question, you have 26 ounces, and you would have four cups. You would need to calculate how many ounces are in the 4 cups

To do this, you would multiply 26 by 4:

26 × 4 = 104

The four cups have a total of 104 for ounces. But, you are not done solving yet. You need to found how many cups there are. We would be going to use the 8 ounces, since we know that is the amount of one cup, and use that to divide 104, since we need to distribute the amount of ounces to the cups.

You would divide 104 by 8

104 ÷ 8 = 13

There would be 13 cups of spaghetti sauce in 4 jars of spaghetti sauce that has 26 ounches in it.

Your FINAL answer would be 13.

____________________________________________________

<em>-Julie</em>

8 0
2 years ago
Methods used to help control invasive species
Margaret [11]
1. Biological control is the intentional manipulation of natural enemies by humans for the purpose of controlling pests.
2. Mechanical control includes mowing, hoeing, cultivation, and hand pulling.
3. Chemical control is the use of herbicides.
7 0
3 years ago
Read 2 more answers
Would it be easier for an investigator to change the outcome of differentiation if a cell used cytoplasmic determinants or induc
IrinaK [193]

The correct answer is: Induction, because this could be easily changed by changing the cell's environment.

Cell differentiation (process by which cell becomes specialized) can be under the influence of many factors:

• Cytoplasmic influence because cytoplasm can influence and control the behaviour of nuclear genes.

• Embryonic induction-changing the cell environment

For example: if cells from one region of the embryo are transplanted to some other region that transplant will most likely differentiate according to the chemical regulators of the surrounding cells.  

• Proteins present in a cell influences its differentiation

• Cell-Cell interactions via cell-cell adhesion and signalling molecules.

5 0
3 years ago
For plants living in a dry areas, explain a possible conflict between the need to obtain carbon dioxide for photosynthesis and t
ahrayia [7]

Plants living in dry areas face conflict.

EXPLANATION:

  • Since they live in dry areas they will undergo more transpiration.

  • If they open stomata during the day there will be excessive loss of water vapor that will result in their death.

  • Therefore plants living in this area open the stomata during the night to obtain Carbon dioxide.

  • This checks the loss of water through transpiration and provides the carbon dioxide for photosynthesis.

7 0
2 years ago
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