All categories

3 years ago

Which example correctly describes the relationship of form and function at the chemical level?

Biology

1 answer:

algol [13]3 years ago

7 0

Answer:

The binding of chemical messengers to receptors often results in a shape change, which affects receptor function.

Explanation:

Binding of specific chemical messengers to the corresponding receptors of target cells brings about change in the shape of the receptors. This structural change in the receptor results in the generation of the desired response. It reflects how the form and specific configuration of substances or biomolecules affect their functions.

For example, binding of neurotransmitters to the receptors present on neurons opens the associated ligand-gated ion channels to allow the movement of specific ions through it. In the absence of bound ligand, these channels are present in a closed conformation.

You might be interested in

The marine multicellular protists including the larger brown algae belong to the

Finger [1]

Options for the question have not been given. They are as follows:

A. dinoflagellates.

B. Choanoflagellida.

C. Stramenopiles.

D. euglenoids.

E. foraminifera.

Answer:

C. Stramenopiles

Explanation:

Stramenopiles or heterokonts are a part of Chromista kingdom. They comprise of both unicellular and multicellular protists. They are characterized by presence of two dissimilar flagella in the motile life cycle stage. Their chloroplast is also surrounded by four membranes which indicates origin from symbiotic relationship. They include many classes like diatoms, golden algae and brown algae. Brown algae belongs to the class Phaeophyceae. They are marine multicellular algae and are commonly known as seaweeds.

6 0

3 years ago

2) Sometimes insects will instead sit on top of a warm surface in order to increase their body temperature. What is the primary

SCORPION-xisa [38]

Answer:

The correct option is C.

Explanation:

There are three modes of heat conduction, these are conduction, convection and radiation. Heat transfer by conduction usually involves the movement of heat through solid substances. For instance, in the scenario given in this question, the warm surface is the solid substance through which heat is passed to the insects' bodies. Thus, conduction requires direct contact.

Heat transfer by convection method usually involves the movement of heat through liquids or gases while radiation can occur in vacuum.

4 0

2 years ago

After crossing purebred red (dominant) and purebred white (recessive) flowers, pink flowers appeared. Using symbols, show the cr

-Dominant- [34]

Since after crossing a red and a white flower produced pink flowers, the red color trait shows an incomplete dominance and has a genotype of Rr.
Using the Punnett to determine the cross between pink and white flowers:
| R | r |
r | Rr | rr |
r | Rr | rr |

The results indicate that the cross between pink and white flowers will produce a ratio of 1:1

Rr x rr

3 0

3 years ago

Read 2 more answers

PLEASE HELP BRUH I GOT A TEST

Rzqust [24]

Answer:

Explanation:

Producers are at the bottom of the energy pyramid because they prove the most energy, they make up most of the population, which is biomass. And the producers have the largest population, which is why they are at the bottom of the pyramid of numbers. Finally they are at the bottom of food chains and webs because they store the most energy inside of them.

5 0

3 years ago

A wire-hair terrier and a smooth-hair terrier are mated. The offspring produced are 6 wire-hair puppies and 2 smooth-hair puppie

Leto [7]

Let’s assume a wire-hair terrier is a true breed for wire hair with alleles (BB) and a smooth-hair terrier is true breed for smooth hair (bb). Allele B is dominant over its allele b. When these two terrier mated and produce offspring wire-hair terrier and smooth-hair terrier in the ratio 3:1.

Based on this result it can be inferred that –

a. The pattern of inheritance is monohybrid cross.

b.Genotype of wire-hair terrier (1BB and 2 Bb) and genotype of smooth-hair terrier is (bb)

c. Phenotype ratio will be 3:1 and genotypic ratio will be 1:2:1.

7 0

3 years ago

Read 2 more answers