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3 years ago

Item 2

Biology

1 answer:

Evgesh-ka [11]3 years ago

8 0

Large molecules often cross the plasma membrane while inside vesicles.

Explanation:

The plasma membrane is a fluid membrane mad of phospholipids bilayer. The fatty acid chains are sandwiched in between the phosphate ends of the lipid layers. The fluidity of the membrane is due to the fact that these molecules, including the integral proteins that span the membrane are NOT covalently bound to each other hence can freely move within the membrane. Cholesterol molecules are intercalated in between the fatty acid chains and prevent these carbon chains from binding to each other tightly through hydrogen bonding hence adding to the fluidity of the membrane. The cell membrane has natural pores within it that allow small molecules such as water to pass through, passively, in and out of the cell. Larger molecules have to pass through channels created by the integral proteins while the largest molecules are taken in by endocytosis and taken out by exocytosis, which translates to vesicle transport in cell.

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Give a brief description of both Name 3 similarities and 3 differences.

FromTheMoon [43]

Answer:

Similarities And Differences:

If a topic, law or scientific research shares the same origin of study, similar to another topic or term, then they will be compared and further analyzed by the team of scientists and research workers in order to have some conclusions and results.

Explanation:

As there are many scientific research and analyses which is been carried out in order to analyze the different elements in the process of comparison between any two subjects and terms.

There are various subjects and topics of research work. Many of the scientific research work are in parallel to each other as they are somehow compared by other scientists and research workers.

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3 years ago

If a man weighs 190 lb and eats 150 g protein per day, his protein intake is _____ of the recommended dietary allowance (rda)

-BARSIC- [3]

The RDA for protein is 0.8 g per kilogram of body weight. This man's weight is 190 lb, or 86 kg; 86 kg × 0.8 = 69.1 g protein per day. Thus, an intake of 150 g is more than twice his RDA of 69.1 g of protein per day.

Recommended Dietary Allowance (RDA) of protein for adults is 0.8 g per kilogram of body weight. To determine your RDA for protein, multiply your weight in pounds by 0.36.The protein RDA for adults is 0.8 grams per kilogram of healthy body weight per day.

Proteins build muscle mass and contour, facilitate hair, nails and bone growth, regulate energy levels, and support chemical processes within the body which include enzyme, hormone and antibody production.

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2 years ago

What is cellurar respiration?

Harman [31]

Answer:cellular respiration is a process by which cells use oxygen to produce energy from food.

This happens in the mitochondria

5 0

3 years ago

timurjin [86]

Answer:

Explanation: minutes 60

Temperature (°C) D) 32 °C

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3 years ago

Scientific knowledge is generally considered to have a positive effect on society. In which situation would scientific knowledge

zheka24 [161]

It takes years to become widely understood if it is misrepresented in order to influence public opinion
It is the only one with bad effects since the others may be annoying but they would provide safety.
Im not leaning either way with this but global warming is not agreed on and many people will try to use that to influence people as an example

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3 years ago

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