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bija089 [108]
3 years ago
8

Which molecules help control movement of substances through cell membranes? A. carbohydrates B. ATP C. DNA D. proteins

Biology
2 answers:
erik [133]3 years ago
5 0

Answer:

D. proteins

Explanation:

The plasma membrane is formed mainly by lipids and proteins. Lipids act by guaranteeing the membrane structure, while proteins are related to the main functions performed by this cell structure.

The proteins present in the plasma membrane are embedded in the bilayer. These proteins may be inserted totally or only partially into the membrane. It is worth mentioning that some act as true channels for the passage of substances. That is, we can say that membrane proteins are the molecules responsible for helping to control the movement of substances across cell membranes.

krek1111 [17]3 years ago
4 0
D. Proteins help control substances by making trans-membrane channels.
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has recently taken up weight lifting and his friends at the gym mistakenly believe they should eat more protein to build muscle.
faltersainse [42]

Complete Question

Ruben Ward has been weight lifting and eating a high protein diet. Below is Ruben's profile and what he ate for a day. He entered his profile information and food intake into Diet & Wellness Plus and then pulled the Diet & Wellness Plus Reports. View Ruben’s Intake vs Goals and Macronutrient Ranges Reports and then answer the questions below. Profile for Ruben Ward 1. Age: 19 years old 2. Gender: Male 3. Height: 5 ft, 8 inches 4. Weight: 205 lbs 5. Non-Smoker 6. Activity Level: Active

Ruben has recently taken up weight lifting, and his friends at the gym mistakenly believe they should eat more protein to build muscle. The DRI for protein for healthy adults is 0.8 g per kg body weight. If Ruben weighs 205 lbs (93 kg), how many grams protein per kg body weight did he eat on this day?

a. 5.37 g/kg

b. 10.33 g/kg

c. 3.55 g/kg

d. 4.88 g/kg

Answer:

c. 3.55g/kg

Explanation:

RDI means Recommended Dietary intake. It is the required amount of a nutrient expected to be taken by an individual for optimal health.

The Recommended Dietary Intake I'd protein falls withing the range of 0.8 grams per kg to 1.8 grams per kg

For Reuben

He weighs 93 kg

If Reuben consumed 330 grams of protein, his grams of protein per kg body weight is

330 grams ÷ 93kg

= 3.55g/kg.

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3 years ago
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galina1969 [7]

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3 0
3 years ago
What is the occipital lobe responsible for?
VARVARA [1.3K]
Your occipital lobe is responsible for letting you see
5 0
3 years ago
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Veronika [31]

Answer:

I think is C

Explanation:

8 0
3 years ago
If it were possible to have antagonistic muscle pairs in an arm contract simultaneously, what movement would the arm make?
Dvinal [7]

If it were possible to have antagonistic muscle pairs in an arms contract simultaneously, the arm would be locked in position.

How do antagonistic muscle pairs work?

Tendons allow muscles to exert force on bones. They pull on our bones and related body parts to move them; this activity is referred to as muscle contraction. In "antagonistic muscle pairs," muscles function. A pair of muscles work together to move a body part, and then the other muscle in the pair works together to bring the body part back to its starting position.

Antagonizing pairs of muscles are those that function in this way. When two muscles are antagonistic, one contracts while the other relaxes or lengthens. The muscle that is lengthening or relaxing is referred to as the antagonist, while the muscle that is contracting is referred to as the agonist.

Learn more about the antagonistic muscle pairs here:

brainly.com/question/17098003

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4 0
1 year ago
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