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Serga [27]
3 years ago
11

Help! ASAP, this is due tomorrow and I’m struggling as this isn’t what they taught us. The question is: Explain why the bacteria

shown (E. coli) have a second membrane outside the
peptidoglycan.
Biology
2 answers:
tiny-mole [99]3 years ago
7 0

The second membrane protects e.coli (Gram-negative bacteria) against a harsh environment.

The outer membrane indirectly helps stabilize the inner membrane as peptidoglycan layer in Gram-negative bacteria is relatively thin than gram positive bacteria ( they have multilayer pepdtidoglycan )

BARSIC [14]3 years ago
3 0

Answer:

The outer membrane of Escherichia coli consists of lipopolysaccharide, phospholipid, protein and Enterobacterial common antigen. The outer membrane as a layer has a protective function. Several specific functions can be attributed to individual constituents. hope this helps!

Explanation:

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Which of the following objects would experience the greatest acceleration if the same unbalanced force were applied to each?
REY [17]

Answer:

A=An object of mass 1 kg

Explanation:

3 0
2 years ago
Why do the navajo associate the tips of the fingers with the trail of the wind?
kozerog [31]
Allegedly, <span>the finger tips show where the wind blew when our ancestors were created. In a way, their fingertips are roots to their ancestors, so touching them somehow links them to their ancestors. And as you probably know, the Navajo are very much connected to their ancestors, and tribes in general. </span>
7 0
3 years ago
What happens when light energy excites electrons in photosystem II?
Vlada [557]

Answer:

C. Electrons are released into the electron transport system.

Explanation:

Photosynthesis has both light dependent processes and light-independent processes. In the light-dependent reactions, photosystem II is the first protein complex. Photosystem II is present in the thylakoid membrane of plants.

<em>When the photons or light energy hits photosystem II, the free electron excites and released into the electron transport system (series of proteins). </em>The electron then passes through electron transport system and the energy from the electron fuels the hydrogen ions to move against their concentration gradient. Once the energy is utilized, the electron is accepted by photosystem I.

Hence, the correct option is C.

4 0
3 years ago
Read 2 more answers
As distance west of kilauea increases the size of the islands generally appears to decrease. What is likely the reason for this
MakcuM [25]

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4 0
3 years ago
1.What taxon (classification levels) are represented by the scientific name of an organism? What are the rules for writing the s
Ksivusya [100]

<u>Answer</u>:

1.a) Species. It is the lowest taxon and represents the scientific name of the organism.

b) The species name is part of the binomial system of nomenclature developed by Linnaeus.

Thus it is composed of two parts each with its own writing rules (ex. gray wolf - <em>Canis lupus</em>):

A. the genus or generic name

- written first

- always underlined or italicized

- the first letter is always capitalized

ex. <em>Canis</em>

B. the specific epithet or species name

- is written second

- always underlined or italicized

- never capitalized

ex. <em>lupus</em>

<em />

2. The results should always be the same. A dichotomous key is an identification tool based on a series of choices between alternative characters (dichotomous = divided into two parts). Thus, there is no room for subjective observation that may lead to another result. If the morphological traits of the organism are correctly identified, the the result should always be the same. Any differences occur due to errors on the scientist's part.

5 0
3 years ago
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