1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
agasfer [191]
3 years ago
11

Rhodopsins are light-sensitive molecules composed of a protein (opsin) and retinal (derivative of vitamin a). opsin is a membran

e protein with several alpha-helical segments that loop back and forth through the plasma membrane. there are two classes of rhodopsins. according to oded beje, one class has relatively slow dynamics (a photocycle of approximately 0.5 second) and is well suited for light detection. the second class has faster dynamics (a photocycle of approximately 0.02 seconds) and is well suited for chemiosmosis-pumping of protons or chloride ions across cell membranes. oded beje was the first, in september 2000, to report on a rhodopsin (proteorhodopsin) found in the domain bacteria. [source: o. beje et al., science 289 (2000): 1902.] proteorhodopsin consists of a single polypeptide chain. what is the highest level of structure found in this protein?
Biology
1 answer:
kobusy [5.1K]3 years ago
4 0
The highest level of structure find in this protein is TERTIARY.
There are four different structural levels of protein formation, these are the primary, secondary, tertiary and the Quaternary level.
The tertiary structural level of protein is usually formed by the folding of the secondary structures of the protein. The tertiary structure of a protein determines its functions.
You might be interested in
In chickens, comb shape is determined by alleles at two loci (R, r and P, p). A walnut comb is produced when at least one domina
frutty [35]

Answer:

a) All Walnut , Genotype - RrPp

b) Walnut : Rose: Single

1:1:2

Explanation:

Phenotype and their Genotype -

Walnut comb - R_ P_

Rose Comb - R_ pp

Pea Comb - rr P_

Single Comb  - rr pp

a) RR PP *  rr pp

All progenies will have genotype RrPp (Walnut Comb)

b) Rr Pp *  rr pp

RrPp (4), Rrpp (4), rrpp (8)

Walnut : Rose: Single

1:1:2

4 0
2 years ago
In food chains, the flow of energy is ALWAYS
n200080 [17]
Becausebof he law of conservation of evergy. Evergy can not be created of eliminated, therefore it has to be transfered in this case the energy is transfered from one organism to the otherand this process continues at an endless cycle
6 0
3 years ago
Which is the number 1 reason for loss of biodiversity.
Vinil7 [7]

Answer:

B. Habitat destruction

Explanation:

What is the number one cause of biodiversity loss? 1. Habitat destruction. Habitat destruction is a major cause of biodiversity loss.

8 0
1 year ago
Activation of the sympathetic nervous system A. increases salivation and increases blood pressure. B. decreases salivation and i
yaroslaw [1]

Answer:

B. decreases salivation and increases blood pressure

Explanation:

The sympathetic nervous system is part of the autonomous nervous system which controls involuntary responses of the body such as salivation and blood pressure.

The sympathetic nervous system  is majorly responsible for body actions that are produced when threat is perceived. It generates responses referred to as the “fight or flight” response. Examples of such responses include, increased breathing, increased high blood pressure, dilation, decreased salivation, etc.

Activation of the sympathetic nervous system would result in rise in the blood pressure as can be witnessed by someone whose body has perceived a threat or reacting to a stressful situation.

The control of salivary production by the sympathetic nervous system  leads to the release of noradrenaline which acts on certain receptors that results in decrease in the production of saliva. This is evident in a person that is facing a threat also.

8 0
2 years ago
Dr. nelson studies the psychological factors that seem to be associated with the development of heart disease. dr. nelson specia
otez555 [7]
<span>Dr. Nelson studies the psychological factors that seem to be associated with the development of heart disease. Dr. Nelson specializes in health psychology.</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • A hornless ox was mated with a horned cow They procreated two individuals one of them of horned offspring what is the genotype o
    13·1 answer
  • What does he lac Operon in bacteria code for
    15·1 answer
  • 1.Andrea is viewing a plant cell with a compound microscope. She notices a large, "empty" structure. When Andrea adds salt water
    12·1 answer
  • Convert 59.48 g to kilograms
    15·2 answers
  • What are the 8 organelles of a plant cell and what are their functions??
    13·1 answer
  • When measuring for pH, you are measuring for the presence of these ions?
    15·1 answer
  • A group of organisms of the same species that live together in the same place at the same time are called a/an
    9·2 answers
  • Which statement accurately compares archaebacteria and eubacteria?
    8·1 answer
  • How does a potometer show that water taken up by the plant is indeed lost through the ventral surfaces of the leaves???​
    6·1 answer
  • List one factor that you imagine would limit settlement on top of living organisms. The panels hang vertically from the side of
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!