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tensa zangetsu [6.8K]
2 years ago
9

The plasma membrane is composed of a phospholipid bilayer with embedded proteins. What is one of the functions of the embedded p

roteins? A. protecting the cell from physical harm B. defining the cell's structure and shape C. preventing the phospholipid tails from binding together D. allowing specific substances to flow into the cell
Biology
2 answers:
Elina [12.6K]2 years ago
7 0

the correct answer is

D

sergiy2304 [10]2 years ago
5 0

The embedded proteins <u>allow specific substances to flow into the cell</u>.The phospholipid bilayer forms a stable barrier between two aqueous compartment.They embedded proteins carry the selective transportation of molecules and ensure their is cell to cell recognition.

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Jonathan Swift choose a satirical essay to address the issues of Ireland's poor in A Modest Proposal. Why?
Sphinxa [80]

Answer : Option B) Swifts earlier attempts at nonsatirical essays and speeches had failed to elicit a response from the government.

Explanation : Jonathan Swift chose a satirical essay to address the issues of Ireland's poor in A Modest Proposal as his previous attempts to get a response from the government was failed and not fruitful. He thought of approaching in a satirical way so that he can pin-point the issues to the government in humorous way.

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2 years ago
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The Physical Activity Guidelines for Americans provide guidelines specifically for older adults. "Which of the following is not
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b. All adults should engage in moderate-intensity aerobic physical activity for at least 150 minutes per week, vigorous-intensity aerobic activity for 75 minutes per week, or an equivalent combination of the two.

Explanation:

The Physical Activity Guidelines for Americans guidelines for older adults states that:

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To maintain good cardiac and nervous health; musculoskeletal fitness and strength; reduce depression, cognitive decline; older adults are directed to engage in moderate-intensity/vigorous or combination of both aerobic physical activities and muscle-strengthening exercises.

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Older adults with mobility issues should perform exercises to improve their balance and prevent falls .

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2 years ago
The graph represents velocity vs. time for Carla. A graph with horizontal axis time (seconds) and vertical axis velocity (meters
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Answer:

The statement that best describes the graph is Carla slowed down in the beginning of her trip, stopped, and then sped up.

Explanation:

Data:

Horizontal axis = time.

Vertical axis = velocity (m/s).

A line runs in straight segments

  • <em>from 0 seconds 15 m/s.</em>
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  • <em>to 2 seconds 10 m/s.</em>
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According to the data present in the graph, it can be seen that Carla starts with a speed in her career, which decreases over time. After four seconds she stops, remains stopped for one second and starts running again, with an initial speed of 4 m/s.

<em>In conclusion, the graph show Carla -who is moving- slows down until she stops, and then starts the race again.</em>

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The right answer is Schwann cells.

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