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ziro4ka [17]
3 years ago
5

I need help please can anyone help?

Biology
2 answers:
GenaCL600 [577]3 years ago
4 0
Cell wall.

Made of cellulose and acts as a stronger cell membrane in a plant cell
Mademuasel [1]3 years ago
4 0

Answer:

cell membrane

Explanation:

the cell membrane allows things to move in and out of the cell, allowing too much water into the cell is a problem with the cell membrane

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Suppose there is a protein "A" which binds to a DNA sequence and increases transcription of the gene CBC23. In the presence of m
fenix001 [56]

Answer:

A = Activator

B = Effector

Explanation:

An activator is a protein which typically binds to a short (50–1500 bp) region of DNA which might be located either upstream (mainly) or downstream of a gene so as to cause increased transcription. This particular region of DNA is known as enhancer and activator is also  known as transcription factor. Activator is a trans-acting factor which binds to the cis-acting factor which is enhancer so as to enhance transcriptional expression.

But another protein named as effector may restrict activator from binding to the enhancer leading to a decrease in transcriptional expression by binding to the activator allosterically. Allosteric binding of effector to the activator causes conformational change in activator so it can no longer bind the enhancer.

7 0
3 years ago
What percentage of water is lost through the respiratory system?
HACTEHA [7]
<span>The normal daily input of water is about 2.5 L from beverages food, and metabolism. The normal daily output of 2.5 L consists of 1.8 L in urine, sweat, and feces, plus 0.7 L in insensible water loss. Insensible water loss is water that evaporates through the skin and from the respiratory tract. Insensible losses account for 0.7 L of water loss per day. The average human exhales an average of 0.35 L of water each day. This corresponds to about 14% of water lost through respiration.</span>
4 0
4 years ago
Read 2 more answers
Newton’s 2nd law describes the relationship between Force &amp; Mass. It can be written that Force= mass multiplied by accelerat
Pavlova-9 [17]

Answer:

m = F / a

Explanation:

F = ma

F / a = m

m = F / a

it's simple bro

6 0
3 years ago
Describe the actual and relative sizes of a virus, a bacterium, and a plant or animal cell.
anzhelika [568]

Answer :

The animals are categorized into 2 groups - eukaryotes and prokaryotes. The microbes like bacteria are coming under prokaryotes. They are unicellular organisms and without a true nucleus.

Viruses are the connecting link between the living and non - living. They are smaller than bacteria. The microbes less than 100 micrometer can't be seen by the naked eye. They can only visible under a microscope.

Viruses like polio, flu virus sizes are 10nm. But some of the viruses are also less than 10nm. The size of bacteria is 1 micrometer. The viruses are 10 times smaller than the bacteria.

The eukaryotic organisms are more advanced and multicellular. Their cell size is larger than bacteria and viruses. The red blood cells under the light microscope are 8 micrometers. The typical animal cells like sperm are 60 micrometers and a skin cell is 30 micrometers. The plant cell for example pollen is 90 micrometers.

The eukaryotic cells sizes are more than prokaryotes like bacteria.

3 0
4 years ago
How long is the country Norway
densk [106]

Answer:

1,100 miles

Explanation:

3 0
3 years ago
Read 2 more answers
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