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finlep [7]
3 years ago
11

How do most small molecules cross the cell membrane?

Biology
1 answer:
GarryVolchara [31]3 years ago
3 0

Answer:

the structure of the lipid bilayer allows small,uncharged substances such as oxgen.and the carbondioxiode,and hydrophobic moleclues such as lipid to pass through the cell membrane

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This is an animal with a backbone or a notochord.
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Answer:

Chordates share some common traits. At some point in their life cycle, they have a notochord, a nerve cord, and pharyngeal (fayr uhn JEE uhl) slits in the neck or throat. The notochord is a flexible rod that supports the animal's back. ... Sharks are one type of vertebrate animal that have backbones made of cartilage.

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2 years ago
What form a spindle shaped structure of protein fibres on which the chromosomes move during nuclear division? 
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Function of centrioles

An organelle that forms a spindle-shaped structure of protein fibers on which the chromosomes move during nuclear division are called the centrioles. Centrioles are part of the animal cell organelles. Hence, they are a small part of the microtubules organized and set in a particular course. Microtubules include 9 sets. Centrioles contain a cylindrical structure, packed with protein which is described as tubulin. Found mostly in eukaryotic cells beside the nucleus.



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2 years ago
Manufacturing recombinant DNA molecules involves cutting a gene from its normal location, inserting it into a circular piece of
poizon [28]

Answer:

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