Photosystem II is a phase of what type of reaction?
Calvin cycle
light-independent
light-dependent
electron transport

Answers

Answer 1

Answer:

Light Dependent

Explanation:

Photosystem II obtains replacement electrons from water molecules, resulting in their split into hydrogen ions (H+) and oxygen atoms. The oxygen atoms combine to form molecular oxygen (O2), which is released into the atmosphere. The hydrogen ions are released into the lumen.


Related Questions

After Earth formed, its surface cooled and solidified. Volcanoes began spewing gas into the atmosphere. Which two gases made up most of Earth's atmosphere during this period?​

Answers

It contained methane and co2.

Answer:

Ammonia and Carbon Dioxide

Explanation:

It is Ammonia and Carbon dioxide, stage 2 of the atmosphere. Little or no traces of oxygen or Nitrogen.

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How can point and frameshift mutations contribute to biodiversity of Earth? Explain your
answer.

Answers

Answer:

These mutations form new alleles that increase genetic variation in a population. This variation may lead to new species which increases biodiversity.

Explanation:

Mutations are randomly occurring modifications that exist within the genetic code, leading to replication errors in DNA. DNA molecules are long-chain, helical macromolecules that store genetic material. They consist of different monomer sequences called nucleotides. In a reading frame, which contains instructions for protein production, they shape base pairs and codon sequences.

Single nucleotide polymorphisms are normal, as silent mutations, which sometimes result in no changes in amino acids. Some mistakes add a random nucleotide (SNP) in point mutations resulting in new alleles.

Frameshift mutations occur from nucleotide insertions or deletions that are not divisible by 3. This results in the codon requiring more or fewer nucleotides which disrupt the reading frame, resulting in a separate protein translation.

Refer to the diagram provided. This cell can conduct cellular respiration. Name a product of cellular respiration that is used as a reactant in photosynthesis?

CO2
ATP
Glucose
02

Answers

Answer: CO2

Explanation: A product of cellular respiration is Carbon Dioxide. Carbon dioxide is also needed for plants to go through photosynthesis. Therefore, that would be the product to cellular respiration and the reactant in photosynthesis.

A. CO₂

Cellular respiration is the process by which organisms use oxygen to break down food molecules to get chemical energy for cell functions. The energy released is captured in molecules of adenosine triphosphate, or ATP, which then supply it to fuel other cellular processes.The process begins in the cytoplasm and is completed in a mitochondrion. Cellular respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport.

Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.

Therefore, option A is correct.

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Which processes change magma into igneous rock?

Answers

Answer:

Magma rises to Earth's surface, such as through a volcanic eruption, where it cools and hardens into igneous rock. On the surface, weathering and erosion break down the igneous rock into pebbles, sand, and mud, creating sediment, which accumulates in basins on the Earth's surface.

Explanation:

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Which of these seed parts provides nourishment during germination?
A. embryo
B. endosperm
C. seed coat

Answers

The endosperm provides nourishment.

PLEASE HELP I NEED THIS ASAP I NEED TO KNOW WHERE TO PUT EACH BLOCK

Answers

Light energy is in the left
Glucose is in the middle
Carbon dioxide is on the right
:)

If you wanted to study dolphins and porpoises, which zone would you want to investigate first?

Answers

Answer:

Answer is Sublittoral

Can someone design me an infographic explaining climate change and what we should do about it. In 30mn or a hour please it’s urgent. Thanks for your time.

Answers

What's an infographic?

Answer:

lol for 5 points

Explanation:

what are plants and some other Types of animals that make their own
food?

Answers

Algae

Corn plant

Grass

Wheat

Seaweed

Phytoplankton

what is the study of similar and different structures in organisms

Answers

Answer:

Comparative anatomy , study of similarities and differences of different species. It is closely related to evolutionary biology and phylogeny?

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What will be the end result of the process shown in the model?
A. Two identical daughter cells will be produced.
B. Crossing over will result in new genetic material.
C. Chromatids will have just moved toward opposite poles.
D. One much larger cell will be produced through nuclear fusion.

Answers

Answer:

i think its b i could be wrong

Explanation:

The correct model shown is Crossing over will result in new genetic material.

What is crossing over?

When it comes to genetics and genomics, the term "crossing over" describes the DNA exchange that takes place between paired homologous chromosomes (one from each parent) during the development of egg and sperm cells.

This process leads to novel allele combinations in the gametes (egg or sperm) produced, ensuring genomic variety in any offspring born.

When chromosomes of the same type are paired together during meiosis, a biological event called crossing over takes place. Parts of the chromosome can be exchanged when two chromosomes, one from the mother and one from the father.

Therefore, The correct model shown is Crossing over will result in new genetic material.

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Minerals are naturally occurring inorganic solids that possesses an orderly internal structure and a definite chemical composition
This orderly internal structure or regular pattern is called its
2
hardness
B
cleavage furrow
specife gravity
crystal structure

Answers

Answer:

hardness

Explanation:

Answer:

hardness

Explanation:

(k12)

The ability of the carboxyl and amino groups to adopt a charge in biology makes
them very important functional groups in proteins. Use the image to choose the
correct statement below?

O Negatively charged regions of molecules tend to have carboxyl groups.
O Positively charged regions in molecules tend to have long carbon chains.
O Only one region of molecule can carry a positive charge at once.

Answers

The correct statement regarding the structure in the above image is as follows: negatively charged regions of molecules tend to have carboxyl groups (option A).

What are amino acids?

Amino acids are the monomeric components of proteins. They are any organic compound containing both an amino and a carboxylic acid functional group.

The amino group has a formula -NH₂ while the carboxyl group has a formula -COOH.

According to this question, the ability of the carboxyl and amino groups to adopt a charge in biology makes them very important functional groups in proteins.

As observed in the image of the amino acids, only the carboxyl group carries a negative charge (-), hence, it is correct that negatively charged regions of molecules tend to have carboxyl groups.

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HELPP MEEE What effect does pesticides have on apple size?

Blank 1: Independent variable

Blank 2: Dependent variable

Blank 3: "If...then..." hypothesis

Question 2 options:
Blank # 1
Blank # 2
Blank # 3

Answers

Answer:

noooooooooooooooooooo

What would happen to you if your white blood cells didn't make antibodies

Answers

Answer:

you would get a lot of bad infections

If you had no white cells, you would get lots of very serious infections. White blood cells can find germs that enter your body and destroy them, which keeps them from making you sick. Some white blood cells make antibodies, which are special molecules that can stick to germs and make them harmless.

You are testing for nitrate reduction. The first test, which involves adding Trommsdorff reagent and dilute H2SO4, produces a blue color. Is the test positive or negative for nitrate reduction?
a. positive
b. negative

Answers

Answer:

The correct answer is - option a. positive.

Explanation:

Nittarte reduction is the test for the determinantion of the production of nitrate reductase enzyme through various test. One of the test is trommsdroff test.

This test involves trommsdroff reagent and dilute sulfuric acid that produce blue color if the reduction occurs and reductase present. This color is formed due to the conversion of ammonia to nitrate.

The correct answer is - option a. positive.

138) Six-year-old Matthew broke his femur and one of his epiphyseal plates was damaged. Explain the role of the epiphyseal plate in longitudinal growth and predict the effects of a damaged epiphyseal plate on his future longitudinal growth.

Answers

Answer:

The function of the physis or growth plate is to allow the growth in length of the bones (both long as short) through the endochondral ossification process.

Explanation:

The epiphyseal plates are areas of active growth of new bone at the ends of the bones, made up of cartilage that hardens once the child is fully developed. Epiphyseal plates help determine the length and shape of the adult bone eventually. It is the last part of the bones to harden, and therefore they are vulnerable to fractures. The complication of the involvement of the growth plate is the deformity or lack of growth of the bone, leaving the limb twisted or shorter than the contralateral one.Growth disturbances are more frequent when the affected area is very large or when it involves the area of ​​the knee joint. In cases of shoulder or wrist involvement, deformities rarely occur. The alterations are more common when the lesions occur in younger children, because they have a longer growth period.

During which geologic time period were Oklahoma's igneous rocks uplifted?
Ordovician
Precambrian
Pennsylvanian
Cambrian

Answers

Cambrian is the  geologic time period were Oklahoma's igneous rocks uplifted

The Cambrian is the Period was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted of about 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago to the beginning of the Ordovician Period 485.4 mya. Its the subdivisions, and its base, are somewhat in the flux In the early Cambrian, Oklahoma's the Earth was generally cold but was then gradually warming as the glaciers of the late Proterozoic Eon receded. Tectonic is the evidence suggests that the single supercontinent Rodinia are  broke apart and by the early to the mid-Cambrian there were two continents.

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In plants, what is the function of the xylem?

A. To move carbon dioxide through the stem
B. To absorb sunlight
C. To move water through the roots
D. To absorb oxygen

this is on 02.05 plant growth in agriscience foundations 1 flvs

Answers

Answer:

Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.

Explanation:


4. Viruses act like because they destroy the cells in which they multiply

Answers

Answer:

True

Explanation:

In the photosynthesis lab, the chromatography solvent was meant to destroy the pigments.
True
False

Answers

Answer:

False.

Explanation:

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What characteristics make a species vulnerable to extinction?

Answers

Answer:

Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people

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19. Which answer is FALSE ? Glucose...

A. breaks down molecules in our body.

B. is a carbohydrate .

C. is the basic energy unit for all cells.

D. is a monosaccharide.

Answers

Answer:

A. breaks down molecules in our body.

Explanation:

Glucose is the main type of sugar in the blood and is the major source of energy for the body's cells. Glucose comes from the foods we eat or the body can make it from other substances. Glucose is carried to the cells through the bloodstream. Several hormones, including insulin, control glucose levels in the blood.

Hope this helps :)

Answer:

A is the answer

Explanation:

i just did my test so I hope this helps

_______ is the form of energy that your cells require to perform their functions. This form of energy is made in the _______ in a process known as ____________.

Answers

Answer:

Need more info please and thank you

Explanation:

I can help you but please give ne more info

Answer:

ATP is the form of energy that your cells require to perform their functions. This form of energy is made in the mitochondria in a process known as cellular respiration.

Explanation:

***I'm assuming that this question relates to respiration as it has to do with energy. ATP energy are products of cellular respiration. Along with ATP energy, we also have 2 more products, which is H2O and CO2.

We breathe out carbon dioxide since we don't need CO2 in our bodies and we sweat water by the amount of heat + energy you are using up.

***We need to undergo cellular respiration to obtain energy. To obtain this energy, you need the mitochondria as it is the powerhouse of the cell. The mitochondria creates that energy you need as a living organism.

What describes a group of organisms that are members of a species

Answers

Population can be described as a group of organisms that are members of a species

What statistical measure is used to measure narrow-sense heritability by comparing parents to their offspring

Answers

Stethoscope I thank

For  assessing the almost full additive genetic variation while potentially avoiding biases that can occur when modeling close relatives is possible by correlating phenotypic similarity to degree of IBD sharing among conventionally unrelated people.

What is heritability?

Heritability is an important genetics parameter is heritability. Traditional estimates based on family or twin research may be inaccurate because of genetic variance that is not additive or shared environmental factors.

The narrow-sense heritability supplied by uncommon or otherwise poorly labeled causative variations is often underestimated by those based on genotyped or imputed variants, on the other hand.

All variations across chromosome pairs are shared by identical-by-descent (IBD) portions of the genome, with the exception of fresh mutations that have developed since the last common ancestor.

Using phenotypic simulation with thousands of people to use an IBD-based technique (GREML-IBD) to evaluate heritability in unrelated individuals.

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The concentration of water is higher inside of a cell than it is outside of a cell. Which way will the water move?
A. Into the cell
B. out of the cell
C. it will stay the same

Answers

Answer:

c.it will stay the same

Teisha Brown
Bio Trad Bench 1 Clarksdale MS 2020-2021
Section 1
18 of 3018 of 30 Items






























































Item 18
A cell removes a toxin it has produced through a chemical reaction. Which characteristic of living things is the cell demonstrating?

Answers

Answer:

30 items

Explanation:

Dead cells with narrow lumen, lignified cell wall with a few or
numerous pits and serving a mechanical function only are called -
Collenchyma
O
Xylem
O
Aerenchyma
O
Sclerenchyma​

Answers

Answer:

The correct answer is - Sclerenchyma

Explanation:

Sclerenchyma  are the dead cells with narrow lumen lignified cells. These dead cells has numerous pits that helps in trading the various substances to neighboring cells. At matuarity, hese cell lack the protoplast so therefore called dead cells .

Sclerenchyma cells are lignified which makes them thick and these cells help in the supporting the plants. These cells are impereable to almost everything gases, substances and many more.

which beat descrides the scientits who contributed to our current body of knowledge

Answers

Well, this question comes in options and I'll be mentioning them below:

The complete question:

Which best describes the scientists who contributed to our current body of knowledge:

A. Almost all males

B. People of all races and genders

C. Almost all Europeans

D. Currently only South Asians

The correct option is B. This statement best describes the scientists who have contributed to our current body of knowledge. It is something to take pride in and it creates a sense of equality in our minds. It is great that we are being judged on the basis of our knowledge, accomplishments and hard work. To sum it up, any scientist with a curious mind, creative outlook, and persistent attitude can contribute to our current body of knowledge.

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