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fgiga [73]
3 years ago
15

What two structures surround cells?

Biology
2 answers:
Tomtit [17]3 years ago
8 0

Answer:

All eukaryotic cells have a surrounding plasma membrane, which is also known as the cell membrane. The plasma membrane is made up by a phospholipid bilayer with embedded proteins that separates the internal contents of the cell from its surrounding environment.

The external structures of the prokaryotic cell include a plasma membrane, cell wall, and capsule (or slime layer).

Explanation:

<h2>Hope this helps! Please consider marking brainliest! Have a good one!! </h2><h2 />
avanturin [10]3 years ago
6 0

Answer:

Cell membrane surround cells, but cell wall is an extra covering outside plant cells, made up of cellulose

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Life would be very hard because then they may not be able to survive <span />
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3 years ago
What conclusions can we draw from the lab about photosynthesis and cellular
GuDViN [60]

Answer:

Carbon dioxide and oxygen are recycled through photosynthesis and cellular

respiration forever unless something interrupts.

Explanation:

Photosynthesis and cellular respiration are two distinct and opposite metabolical processes undergone by living cells. They are opposite processes because one utilizes the products of the other as reactants.

Photosynthesis is a unique process to autotrophic organisms like plants. It is the process whereby plants synthesize their food in form of organic molecules (glucose) by combining Carbondioxide (CO2) and water (H2O) in the presence of sunlight.

The overall equation of photosynthesis is as follows:

6CO2 + 6H2O ------> C6H12O6+ 6O2

On the other hand, cellular respiration is the process whereby living cells obtain energy (ATP) by breaking down food molecules (glucose) using oxygen to produce carbondioxide (CO2) and water as products. The overall equation is:

C6H12O6 + 602 -----> 6CO2 + 6H2O

Based on the lab experiments, it can be concluded that Carbon dioxide and oxygen are recycled through photosynthesis and cellular

respiration because photosynthesis recycles/reuses the products of cellular respiration, which are C02 and H2O while cellular respiration recycles/reuses the products of photosynthesis, which are C6H12O6 and O2. This process occurs naturally in the environment and will continue to do so unless something interupts.

Option B is incorrect because light energy from the sun powers photosynthesis while option C is incorrect because photosynthesis transforms light energy to chemical energy while cellular respiration transforms chemical energy to thermal energy.

7 0
3 years ago
Which is not true of gene expression?
MrRissso [65]

In simple terms, Gene expression can be stated as the process by which the heredity details in a gene sequence a be made into a functional gene.

<u>Explanation:</u>

  • The odd one for this question is probably would be "it occurs because of cellular signals within your body".
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  • It is the specific combination of genes that are turned on or off. It can be stated as the process of turning off and turning on, it acts as a switch to on and off it is known as the gene expression or gene regulation.
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Answer:

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Select all the correct answers.
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Answer:

The answer is A.

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Adaptive immunity recognizes antigens of viruses.

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