The B-pleated sheet is held together by hydrogen bonds between adjacent segments.
In an a-helix the side chains are located on the outside of the helix
The secondary level of protein structure refers to the spatial arrangements of short segments of the protein
The procedure is called renal angiography. This procedure is done to check the quality of blood flow to the kidneys, check for blockages, narrowing of the blood vessels and lastly aneurysm. A dye is usually injected into the arteries for easier visualization.
Similarities
Both plant and animal cells have eukaryotic origins
Both have common organelles like the nucleus, mitochondria and ribosomes
Both are surrounded by a cell membrane
differences
plant cells have a regular defined shape while animal cells have an irregular shape
plant cells have a cell wall while animal cells lack a cell wall
plant cells have a chloroplast for photosynthesis while animal cells do not have a chloroplast
Answer:
True
Explanation:
Most cells are specialised to perform particular functions, such as red blood cells? that carry oxygen around our bodies in the blood, but they are unable to divide. Stem cells provide new cells for the body as it grows, and replace specialised cells that are damaged or lost.
<span>The cell that does not have a cell wall is the <em>"animal cell".
</em>Have a wonderful day! :D<em>
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