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julia-pushkina [17]
4 years ago
7

What organelle has this function, "hard outer-covering, provides strength and support to cell membrane"?

Biology
1 answer:
pantera1 [17]4 years ago
3 0
If you're talking about eukaryotic cells then it's the cell wall. If it's a prokaryotic cell sometimes the slime layer secreted by some bacteria may harden and form a capsule around the bacterial cell.

Hope i helped!
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Summarize given the large number of proteins is in the body
natali 33 [55]

Answer:

Enzymes' shapes are important because it determines the specific substrate it will act onto.

Explanation:

The shape of the enzymes are explained by two theories, which are Lock and Key Theory and Induced Fit Theory.

<h3>Lock and Key Theory </h3>

This was first coined by <em>Emil Fischer in 1894</em>. Just like how a key has a specific keyhole, <u>enzymes' active sites are supposed to act on specific substrates to produce a catalyzed effect</u>. Incorrectly shaped keys or enzymes will not fit into a lock (substrate) not assigned for it.

<h3>Induced Fit Theory</h3>

this theory was proposed for the substrates that do not qualify for the Lock-and-Key theory, or <u>enzymes that have more than one active sites</u>. It is said that the <u>substrate determines the final shape of the enzyme</u>, and that the<u> enzyme is somehow pliable</u>. The enzyme is then modified by the substrate to form an enzyme-substrate complex. This explains why two or more enzymes can catalyze a single substrate.

<h3>Additional notes:</h3>

For enzymes to work, they may need specific molecules.

A coenzyme may be <u>metal ions (iron, copper, magnesium)</u> or <u>organic molecules (Vitamins B2, B3, B8)</u> which attach to an enzyme to form a holoenzyme. An apoenzyme is an enzyme with only its protein part sans the cofactor.

8 0
4 years ago
Which best describes a cell process common to both projaryotic and eukaryotic cells?
Tomtit [17]

<u>Answer:</u>

<em>All prokaryotes and eukaryotes have nucleic acid as the genetic material which stores the hereditary information. </em>

<u>Explanation:</u>

Both eukaryotes and prokaryotes have cell membrane, ribosomes and cytoplasm in their cell. All the prokaryotes and eukaryotes undergo reproduction however, the process might be different. The reproduction can be sexual or asexual.

The size of the prokaryotes and the eukaryotes vary and also the prokaryotes lack well defined nucleus and the eukaryotes have well defined nucleus and the genetic material is stored inside it.

6 0
3 years ago
The restriction enzymes that cut the bacteriophage DNA cannot cut the bacterial chromosomal DNA. Explain this statement. A. The
Natali5045456 [20]
There is no specific rate that the bacteria is viral
 
5 0
3 years ago
Would someone Please answer this question please will be thanked and also will pick brainly!! (please be honest)
Hoochie [10]
The third option, "other fungi growth".

7 0
3 years ago
What scientist studied how wounds heal and proposed that cells come from preexisting cells
DochEvi [55]

Answer:

Rudolf Virchow

Explanation:

During his studies on inflammatory exudates, Rudolf Virchow observed that the increased number of cells in the exudates was due to the formation of new cells by pre-existing cells. He also studied that the formation of new cells from the preexisting cells is responsible for wound healing and for normal growth and development of living beings.

4 0
3 years ago
Read 2 more answers
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