Which characteristics do cell membranes and cell walls have in common?

Biology

1 answer:

notka56 [123]3 years ago

6 0

Well both of them include DNA because cell membranes and cell walls are part of plant cells and animal cells

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Question 28

Airida [17]

The type of cell division being shown is meiosis. Meiosis creates four haploid cells. The genetic material is exchanged between the cells during meiosis, meaning that the four daughter cells of each have a different variant of the genetic information.

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3 years ago

Which of the following does smooth muscle fall under? voluntary or involuntary

pochemuha

Answer:

Both cardiac and smooth muscle are involuntary while skeletal muscle is voluntary.

Explanation:

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3 years ago

People living in and around the Amazon rain forest

Step2247 [10]

Destruction of the forest results in the disappearance of the species in this forest, which might not be found in other forests. This means that some species will become extinct. Extinction of species leads to reduction of biodiversity - the correct answer is the first one: forest destruction will reduce biodiversity and remove organisms with the potential to help humans

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3 years ago

Which of the following does NOT characterize proteins?

8090 [49]

Answer:

The answer is C) They appear to be the molecular carriers of coded hereditary information.

Explanation:

Why NOT C) They appear to be the molecular carriers of coded hereditary information?

This is the job of the nucleic acids. It is composed of nucleotides which are the basic units of DNA and RNA. They carry genetic information about a certain organism.

<h3 /><h3>True of proteins:</h3>

A) They may be denatured or coagulated by heat or acidity.

Denaturation is the destruction of the protein's secondary and/or tertiary structures. The primary structure is not disrupted due to the tough peptide bonds and can only be broken down by acid. For heat denaturation, hydrogen bonds are destroyed, as in cooking of egg whites and medical equipment sterilization.

B) They have both functional and structural roles in the body.

There are many kinds of proteins that have functional and structural roles like hormones (FSH, LH), antibodies (IgA, IgM), enzymes (lipase, amylase), for storage/transport (hemoglobin, ferritin), and locomotion (actin, troponin).

D) Their function depends on their three-dimensional shape.

Just like hemoglobin, it's quaternary structure can carry 4 molecules of iron in one go. Enzymes are shaped accordingly to fit a specific substrate (lock-and-key model)

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3 years ago

In what ways are the respiratory structures of all animals similar?

Annette [7]

Answer:

provide a large surface area of moist, selectively permeable membrane.

Explanation:

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3 years ago