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Free_Kalibri [48]
3 years ago
15

Name and describe 3 ways objects can travel across a membrane. Include what types of objects (H2O, sugar, ect) are moving across

the membrane for each way.​
Biology
1 answer:
denis23 [38]3 years ago
5 0

Answer:

Osmosis - water

Ions - diffusion

Large proteins - endocytosis

Explanation:

Ions and small molecules can cross the cell membrane by simple diffusion, where they move from a high concentration to a low concentration, down a concentration gradient.

Osmosis is the process whereby water travels across a semi-permeable membrane from a high concentration to a low concentration.

Larger cargo can cross the membrane through a process called endocytosis, where the membrane engulfs the particles and brings them inside the cell, encased in a vesicle.

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Blood pumps through arteries due to contraction of the arterial walls but flows more freely through veins because there is littl
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Excitable cells like those found in muscle tissue are expected to be present in higher quantities in arteries than in veins.

<h3>What are Excitable cells?</h3>

Excitable cells are defined as those cells that are capable of generating electrical impulses when stimulated. Example of such cells include:

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8 0
2 years ago
A student notices that when bananas are kept near other fruits, the other fruits ripen faster. She wonders what causes the other
motikmotik

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The correct option is B) analyze the results and make a conclusion

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The scientific method of research is based on the following steps:

Observations are made: In the following scenario, a student observed that t when bananas are kept near other fruits, the other fruits ripen faster.

Question: Based on the observation, a question is generated. In this scenario, the student had a question that will keeping bananas near any fruit increase the ripening process of the fruit.

Hypothesis: A hypothesis is the formation of a tentative statement.

Experiments: Based on the hypothesis, experiments are done to check for the results.

Analyzing the results and drawing conclusions: Results from the experiments are analyzed and conclusions are drawn which might prove the hypothesis to be correct or wrong.

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