Yeah yeah so :D,
Large polar molecules can only cross the membrane with the help of protein named channel protein and carrier protein.
So, this both proteins act like a gate, the large molecules enter the protein and the protein let the large molecules in to the membrane. (see the picture so that you can understand more, its carrier protein)
the only difference between channel protein and carrier protein is, channel proteins has fixed shape while carrier protein can flip.
Answer:
Explanation:
Red blood cells contain enormous amounts of a protein called hemoglobin. This iron-containing molecule binds oxygen as oxygen molecules enter blood vessels in the lungs. Hemoglobin is also responsible for the characteristic red color of blood.
The measurements that are normal for a client is a blood pressure of 108/80, a pulse of 112 beats per minute and respiratory rate of 15 breaths per minute. Option C
<h3>What is the normal blood pressure?</h3>
The blood pressure refers to the rate at which the heart pumps blood to the other parts of the body. The blood pressure would rise if the blood vessels are blocked and the heart would have to do more work to pump blood.
The measurements that are normal for a client is a blood pressure of 108/80, a pulse of 112 beats per minute and respiratory rate of 15 breaths per minute.
Learn more about blood pressure:brainly.com/question/12497098
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I believe your answer would be Echinoderms and Chordates. I hope this helps!
