Indicate whether each statement is true or false. 1. Rod cells are depolarized in the dark. (Click to select) 2. Glutamate binds to receptors on bipolar cells and causes them to depolarize. (Click to select) 3. Light and dark adaptation are accomplished by changes in the amount of available iodopsin. (Click to select) 4. When light reactions occur, retinal is completely released from opsin. (Click to select)

Answers

Answer 1

Answer:

The correct answer is - 1. true, 2. true, 3. false, and 4. true.

Explanation:

1. Rod cells are the photoreceptors present in the retina that are hyperpolarized not depolarized in dark due to sodium ions efflux.

2. Depolarisation of the bipolar cell of the retina by glutamate release by rods and cones.

3. The adaption according to the light is known as a light adaptation which takes place due to a large part of photochemical in both rods and cones which is reduced to retinal and opsins.

4. when the light reaction takes place retinal converted to opsin

Answer 2

Rod cells are photo-receptors that present in the retina. They hyper-polarized  in the dark due to sodium ions efflux. Statement 1, 2, and 4 are correct while statement 3 is incorrect

 

1) Rod cells are photo-receptors that present in the retina. They hyper-polarized  in the dark due to sodium ions efflux.

2) Depolarization of the bipolar cell of the retina is caused by glutamate released from rod and cone cells.

3) The changes according to the light is known as a light and dark adaptation which is accomplished by the change in oidopsin.

4) In the light reaction takes place retinal converted to opsin,

Therefore, Statement 1, 2, and 4 are correct while statement 3 is incorrect.

To know more about Rod cells,

https://brainly.com/question/15826713


Related Questions

The muscular system and the skeletal system are two different organs. But they're often reffered to jointly as the muscoloskeletal system. Why do you think the word musculoskeletal exists? What similarities in functions do you think the muscular system and skeletal system have?

Answers

Answer:

Both helps in the movement of our body.

Explanation:

The muscular system and skeletal system perform similar function which is movement of body and muscles. Muscular system is made up of skeletal, smooth and cardiac muscles, due to these muscles we are able to work by using our muscles while on the other hand, skeletal system is made up of bones which provides structure to our body and responsible for movement of our body.

Three cells that each has a diploid number of 32 go through meiosis. How
many cells result and how many total chromosomes are in each cell?

Answers

Answer: 6 cells, 16 chromosomes each.

Explanation:each cell, after meiosis produces two haploid cells.

three diploid cells (2n=32) after meiosis give six haploid cells

2) Why do you think certain colors, types, makes or models are more popular than others?

Answers

I ink what the other person said

Normal text Times New... 12 + B I U A ► SIE ! 31 ... 6 7 12:11 5 Organism Amino Acid Sequences Baboon Asn Thr Thr Gly Asp Glu Val Asp Asp Ser Pro Gly Gly Asn Asn Chimpanzee Ser Thr Ala Gly Asp Glu Val Glu Asp Thr Pro Gly Gly Asn Asn Lemur Asn The Ser Gly Glu Lys Val Glu Asp Ser Pro Gly Ser His Asn Gorilla Ser Thr Thr Gly Asp Gly Val Glu Asp Ser Pro Gly Gly Ala Asn Human Ser Thr Ala Gly Asp Glu Val Glu Asp Thr Pro Gly Gly Ala Asn Data Table Primate % different # of amino acids different from human Baboon Chimpanzee Lemur Gorilla Human 1. Which primate is most closely related to humans? 2. Which primate is least closely related to humans? 40 30​

Answers

Answer:

dd

Explanation:

ddd

Help me it’s not easy help

Answers

Answer:

False

Explanation:

Photosynthesis occurs in plants. Humans and animals are living things but photosynthesis does not occur in us.

Hope this helps!

Please mark me brainliest if possible. :)

answer: false

explanation:

photosynthesis only occurs in organisms that are autotrophs.

Isostasy leads to isostatic adjustment if mass is redistributed. Erosion redistributes rock from the mountain to the sediment in the
basin. Which statement does NOT reflect what occurs when erosion happens?
-)))
A)
Mass increases at the crust.
B)
Less mass on the mountain causes uplift.
0
The crust beneath the mountain thins and rises.
D)
The mass of the crust decreases and the mass of the mantle increases.

Answers

Answer: It's A.

Explanation: I am doing UsatestPrep, Now I got this answer wrong, but afterwards it told me the right answer is! "Mass increases at the crust" I got the answer wrong originally because I chose B but it's actually A.

Answer:

Its A because Mass increases at the crust. . Mass is actually decreasing due to erosion of the crust, isostatic adjustment will thus, cause the mantle mass to increase over time.

Explanation:

what is the reason to use LASA drugs

Answers

Answer:

Look Alike Sound Alike (LASA) medications involve medications that are visually similar in physical appearance or packaging and names of medications that have spelling similarities and/or similar phonetics.

Explanation:

PLEASE MARK ME AS BRAINLIEST

Look Alike Sound Alike

(LASA) medications involve medications that are visually similar in physical appearance or packaging and names of medications that have spelling similarities and/or similar phonetics.

Predict the method that estrogen will initiate the reception process in its cell signaling pathway.

a. Estrogen will bind to a transmembrane signal receptor that activates cell-signaling pathways.
b. Estrogen will act as a steroid signal receptor that activates ion channel proteins.
c. Estrogen will serve as a second messenger that activates cell-signaling pathways.
d. Estrogen will bind to a receptor protein that enters the nucleus and activates specific genes.

Answers

Answer:

d. Estrogen will bind to a receptor protein that enters the nucleus and activates specific genes.

Explanation:

Estrogens are small lipophilic molecules synthesized from cholesterol. This steroid hormone (estrogen) is able to directly enter into the cell nucleus to bind with their corresponding receptors. Subsequently, estrogen-receptor binding stimulates these receptors to form dimeric structures that bind to DNA and thus activate gene expression. Estrogen receptors interact with DNA and activate gene expression through zinc finger domains composed of four (4) cysteine residues surrounding a zinc atom.


(a) Describe the first interaction that triggers signaling to begin in a target cell.

Answers

Answer:

a signal molecule locks to a receptor protein (like lock and key),causes shape change in receptor then creates a specific reaction inside the cell that eventually triggers the cell response. State where signal receptors may be located in target cells.

Provide a summary of what happens during DNA replication using the following words: Helicase, DNA
polymerase, Primase, Ligase, Parent strand, new strand, nucleotides, and semi-conservative model.

Answers

Answer:

Please find the summary of what happens during DNA replication below

Explanation:

DNA replication is the process by which a DNA molecule is duplicated into two identical copies. It occurs in the nucleus of the cell prior to any cellular division. The process includes:

- The double stranded DNA is first unwound by an enzyme called DNA HELICASE into a replication fork consisting of two single strands of DNA.

- Another enzyme called DNA POLYMERASE binds to the DNA and begins to add NUCLEOTIDES to each strand using complementary base pairing rule i.e. A-T, G-C. To do this, short sequences of RNA called PRIMER are synthesized by an enzyme called PRIMASE, which serves as building block for DNA polymerase to act.

- However, DNA POLYMERASE can only work in the 5'-3' direction i.e. on the leading strand which runs from 3'-5' direction. Short pieces of DNA called OKAZAKI fragments are synthesized on the lagging strand, which runs from 5'-3' direction.

- An enzyme called LIGASE joins the okazaki fragments together into a whole DNA on the lagging strand.

After the replication process which follows the SEMI-CONSERVATIVE MODEL of replication, each DNA molecule will contain one old strand called PARENT STRAND and one NEW strand.

Please help me with Q5 I’ll give brainliest!!!

Answers

Answer:

Ayo, your best answer would have to be B.

Explanation:

What do you think is the colour for happiness?​

Answers

Answer:

yellow

Explanation:

Answer:

Yellow is the color of sunshine. It's associated with joy, happiness, intellect, and energy.

Explanation:

A mineral MUST have specific traits to be a mineral. Choose ALL required traits that define a
mineral.
1.It is made in a lab
2.It is an inorganic solid
3.It is an organic solid.
4.It is made in nature.
5.It has a variable chemical composition.
6.It has a definite chemical composition.
7.It has a crystalline structure

Answers

I think the answers are 3,4,5,6

Four major blood phenotypes (A, B, AB, and O) are determined by three alleles: A, B, and O. A person with type A has a certain protein on their blood cells' membranes. A person with type B has a different protein
on their cells' membranes. Cells from type AB have both proteins, but cells from type 0, which is recessive, has neither protein
This example illustrates which of the following phenomena? SC.912.L.16.1
Codominance
O Polygenic inheritance
O Partial dominance
O Complete dominance

Answers

Answer:

codominance

Explanation:

took the test got it right

Answer: A. Codominance

Explanation:

The skeleton muscle systems guided notes answer key

Answers

hey what is your question? i can help! :)

The investigator was most likely attempting to determine the effect on photosynthesis of different?
A) wavelengths of light
B) intensities of light
C) mineral concentrations
D) amounts of carbon dioxide

Answers

Answer: D) amounts of carbon dioxide

Explanation: He is putting the plants in tubes and measuring the amount of gas in each tube.  

The knob like structures present on the hyphae are referred as (1)

a) Spores

b) Sporangium

c) Fronds

d) Sori​

Answers

[tex]\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}\star[/tex]

[b] The sporangia are knob-like structures.

They are present at the top of the thread-like structures called hyphae.

They are dispersive, i.e. they are scattered by rain, wind or insects.

What does the field of biology study

Answers

Answer:

Field biology is a sub-discipline of biology that focuses on different levels of biological organization such as organism, population, community, and ecosystem. As its name suggest, this field requires researchers to spend time in remote areas in order to observe a variety of organisms.

Explanation:

Biologists study the structure, function, growth, origin, evolution and distribution of living organisms. There are generally considered to be at least nine "umbrella" fields of biology, each of which consists of multiple subfields.

Answer:

Living organisims

Explanation:

mitosis and meiosis both start out as diploid cells

Answers

Answer:

No

Explanation:

Meiosis divides 2 times so you only get 1 set of genetic information and mitosis is 2 sets.

HELP FAST PLEASE
Which statement is true of offspring from organisms that reproduce asexually?


Offspring have some features like the parent.


Offspring have no features like the parent.


Offspring are genetically identical to the parent.


Offspring are genetically different from the parent.

Answers

Answer:

Offspring are genetically identical to the parent.

Explanation:

When organisms reproduce asexually the create two identical daughter cells.

Match the organelle to its function-

questions and answers

Make assemble proteins/ ribosome

storage/ vacuole

powerhouse plant or make energy/ mitochondria

support and structure/ cytoskeleton

cleanup/ lysosome

process and transport/ Golgi apparatus and ER

create energy from sunlight/ chloroplast

control center/ nucleus


felt like I needed to do this :) hope it helps

Answers

Answer:

I seriously do not understand, you clearly know the answers.  You put all of the correct matchings on your assignment.  Are you trying to give free points?  I am literally so confuse.  Thank you for the free points, and hope you have a bless day.

Explanation:

A sequence of DNA has 120 nucleotides (it is not a complete sequence).
How
many amino acids would be in the resulting polypeptide chain?
a. 120 amino acids
b. 240 amino acids
c. 40 amino acids
d. 12 amino acids

Answers

Answer:40

Explanation: a codon is three nucleotides. Provided that the sequence does not include a STOP codon, the polypeptide would have 40 amino acids

40 amino acids would be in the resulting polypeptide chain of a sequence of DNA that has 120 nucleotides.

CODONS:

A codon is a triplet nucleotide sequence in an mRNA molecule that encodes a particular amino acid. Each codon specifies an amino acid.

A codon is made up of three nucleotides, whose combination determines the amino acid that is encoded.

According to this question, a sequence of DNA has 120 nucleotides. This means that the number of codons that is accommodated in this sequence is 120/3 = 40 codons.

Since 1 codon specifies 1 amino acid, therefore, 40 codons will specify 40 amino acids.

Learn more about codons at: https://brainly.com/question/19153211?referrer=searchResults

Which of the following foods contain MOSTLY lipids? (Check all that apply)

Bread
Broccoli
Soda
Pasta
Olive oil
Fish
Butter
Nuts
Steak

Answers

Answer:

Olive oil.

Explanation:

Edible oils are lipids. These include vegetable oils such as:

canola cottonseed grape seed corn olive peanut and many others

Where might a spring form?
between the saturated and unsaturated zones
at the bottom of a deep valley
on a mountaintop at the origin of a stream
on the surface of a fast-moving aquifer

Answers

Answer:

b i got it right on edg

Explanation:

Answer:

at the bottom of a deep valley

Explanation:

Took question on e2020

What is something all eukaryotic cells have in common?
A.)All Cells are round
B.)All cells have a nucleus
C.)All cells have a cell wall
D.)All cells have cytoplasm

Answers

Answer is B because the option C and D are common traits in prokaryotes cell and that eukaryotic cell do not have, and option A does not matter if it’s round

Answer:

We can immediately rule out option A, because not all cells are round. We can also rule out option C because not all cells have a cell wall. Animal cells, for instance, do not.

Can you choose more than one option? Because if so, the answers would be both B and D. All cells, no matter what type, have cytoplasm. Only eukaryotic cells have a true nucleus.

Please help!!!! Select the correct location on the image. In which part of the nephron does the filtration of blood occur? glomerulus distal tubule proximal tubule loop of Henle collecting duct (to ureter and bladder)​

Answers

Answer:

the glomerulus filters small solutes from the blood. Almost all solutes, except for proteins, are filtered out into the glomerulus by a process called glomerular filtration.

Explanation:

A basic principle for scientific research is that the experiment must be able to be replicated. What happens when an experiment is replicated?

a) A scientific publisher accepts the experimental results for printing.
b) No one in the scientific community agrees with the methods or results.
c) Other scientists perform the same experiment and get comparable results.
d) The scientific researcher performs the experiment many times and gets the same results.​

Answers

Answer:

i think it might be C sorry if i'm wrong if i'm right can you give me brainliest i need it

Explanation:

Answer:

Other scientists perform the same experiment and get comparable results.

Explanation:

How does the hardness of a rock impact their ability to erode?

Answers

Answer:

hardness of rock impact their ability to erode by when rock is harder then it will take more time than soft rock to be eroded . it will resist it's erodness till some more time it will not crack easily

May yall please help me!!! I need help!!!
Answer the 3 boxes
#1 box=
#2 box=
#3 box=

Answers

Answer:

1 box might be offsprings

2 box might be eggs

3 box might be but or seed

True or false (look at the pic below for the question)

Answers

Answer: True

Explantion:                                                                

Answer:

I am going to say true

Explanation:

Plants often store food in their stems. Roots - The roots of a plant grow underground. Roots help to keep the plant from falling over and gather water and minerals from the soil. Some plants store food in their roots.

Please correct me if I am wrong :)

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