describe an experiment to show that chlorophyll is needed for photosynthesis ​

Answers

Answer 1

Answer:

keep a plant in a vacuum sealed bag to stop air from coming in and that will stop the production of chlorophyll since oxygen is needed to make it.

Explanation:


Related Questions

Help plz asappppppppp

Answers

Answer:

A. Whales evolved from four-legged animals.

Explanation:

I'm 100% on this one, because on Plato we were learning about evolution, and one of the slides said that whale had evolved from four legged animals.

Hope this helps ya!!!

Got a screenshot for proof!

A is correct answer

Where are the protons located?
O nucleus
O electron cloud

Answers

Answer: The nucleus.

Explanation: In an atom, there are two main parts, the nucleus and the electron cloud/electron shells. The protons and neutrons are located in the nucleus, and the electrons are located in the electron shells/cloud/whatever.

Write a news story of road accident​

Answers

Answer:

15 Killed, 28 Injured in a Bus accident

The bus was going to Nagpur in that the another bus came and crash to the another bus. In this accident 15 people were Killed and 28 peoples are injured.

According to police the people in the Bus, was the people's of a Nagpur. in this accident the police has Declared that there is no mistake of Driver in this accident.

The transport minister of Maharashtra Diwakar Raote Introduced that government will give 2 lakhs rupees to injured family. and 3 lakhs to dead families.

Which of the following are true about cancer? Check all that apply.

Cancer cells display contact inhibition.

Cancer is contagious.

Cancer cells divide uncontrollably.

Cancer can spread around the body.

Cancer comes in many forms.

Cancer affects only the elderly.

Cancer cells invade healthy tissue.

Cancer does not obey contact inhibition.

Answers

Answer: I think these are the answers:

- Cancer can spread around the body.

- Cancer cells invade healthy tissue.

- Cancer cells display contact inhibition.

- Cancer comes in many forms.

- Cancer cells divide uncontrollably.

and I think "Cancer does not obey contact inhibition." is one too... I hope this helps! :D

Explanation:

Cancer cells:

• Divide uncontrollably

• Comes in many forms

Invade healthy tissues

• Does not obey contact inhibition

What is cancer?

Cancer is a diseased condition in which uncontrolled cell division takes place.

Cancer are of two main types: benign and malignant.

Benign tumours are localized to a particular organ and thus can be removed through chemotherapy or surgery.

Malignant tumours spread to body parts through blood stream and attack the healthy cells. This property of metastasis is unique to cancer cells.

Normal cells show their contact with the adjacent cells. In cancer, contact inhibition is lost and so they divide in an uncontrolled manner.

Breast cancer, leukaemia, lung cancer etc are some of the examples of cancer.

Cancer is detected through tissue biopsy. X-Rays, CT-Scan, MRI are some other techniques that detect cancer in the body.

Cancer can be treated if diagnosed early. Radiotherapy, chemotherapy and surgical intervention are the part of cancer treatment.

Therefore, cancer is considered a serious medical complication.

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How does niche affect organisms populations in an ecosystem

Answers

Answer:

Without the ecological niches, there would be less biodiversity, and the ecosystem would not be in balance.

Explanation:

A species' ecological niche can be defined as the range of resources and conditions allowing the species to maintain a viable population a more simple definition is if two species have the same niche, one species will exclude the other.

What would happen to the concentrations of
Pyruvate, NADH and intermembrane H+ if the ETC
stopped working?

Answers

Answer:

Stay the Same, Increase, Decrease

Explanation:

Glycolysis produces pyruvate which is functioning normally if only the ETC (electron transport) stopped working because the ETC happens AFTER glycolysis, hence pyruvate is being produced and used at a normal rate (no change). NADH is produced in the cellular respiration stage PRIOR to the ETC so it is being created at a normal (or average) rate, however, it is not being used and split properly (meaning, not enough) in the ETC stage hence it's concentration increases. H+ decreases because it cannot be made if the prior step(s) were not complete.

What would happen to the concentrations of pyruvate, NADH and intermembrane H+ if the ETC stopped working are:

Pyruvate would stay the same and not be affected.that is it would remain the same.NADH would increaseH+ in the intermembrane would decrease.

The concentration of the Pyruvate would not be affected If ETC stopped working and so this will make NADH would increase. Due to the fact that there is no electrons been transported down the chain, so therefore, no H+ would be moved and this in turn would make the concentration of H+ in the intermembrane space to reduce.

Conclusively, we can therefore say that what would happen to the concentrations of pyruvate, NADH and intermembrane H+ if the ETC stopped working are:

Pyruvate would stay the same and not be affected.that is it would remain the same.NADH would increaseH+ in the intermembrane would decrease.

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The proteins found in your hair and fingernails would be classified as what type of proteins?

Answers

Answer:

yes

Explanation:

creatine like horns of rhinos or finger nails

Answer:

Keratinocytes

Explanation:

Keratinocytes make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.

please help please help

Answers

Answer:

It allows passage of particles into and out of the cell.

Explanation:

A pair of fruit flies reproduces and has 1000 offspring. All 1000 offspring have the alleles Gg. What is the most likely combination of alleles that each parent has, and why are other combinations not likely.

Answers

Answer:

The correct answer would be - GG and gg.

Explanation:

As it is given that all the 1000 offspring having the same allele Gg which is only possible in one condition that is cross between GG and gg because it is a heterozygous condition in the offspring. So there must be both allele present and it can not be heterozygous parents as there would be a different combinations of offspring in that case.

If the parents either GG only all the offspring would be GG the same with gg than all the offspring will be gg, thus the correct answer would be GG and gg.

Where are the tectonic plates located?

Answers

Answer:

The outermost part of Earth's structure is known as the lithosphere. The lithosphere consists of the crust and small portion of the upper mantle. The lithosphere is divided into a number of tectonic plates. These plates move and interact with one another, driven by convectional forces within the Earth.

Explanation:

What is the correct formula for photosynthesis?

6CO 2 + 12H 2O ---> C 6H 12O 6 + 6O 2
C 6H 12O 6 + 6O 2 + 6H 2O ---> 6CO 2 + 12H 2O
6CO 2 + 12H 2O ---> C 6H 12O 6 + 12O 2
12H 2O + C 6H 12O 6 --->6CO 2 + 3O 2 + 3H 2O

Answers

Answer:

Photosynthesis is a process by which plants and photosynthetic bacteria obtain their food in presence of sunlight from water and carbon dioxide. They produce glucose as the food and oxygen is emitted as the byproduct. The equation for photosynthesis is - 6CO

2

+12H

2

O→C

6

H

12

O

6

+6H

2

O+6O

2

↑.

Thus, the correct answer is 'Photosynthesis.'

Explanation: hope this helps!

PLS HELP ANSWER I WILL DO THE BEG

Answers

B. is the correct answer. through mutation and sexual reproduction

Answer:

its bbbbbbbbbbb

Explanation:

We must breath in__ so our cells can gain more___

Answers

Answer:

oxygen ,energy

Explanation:

We must breath in oxygen so cellular respiration can occur and our cells can gain more ATP (energy) to function.

Cells need energy from the food we eat to to do it’s job such as beating the heart, but the cells cannot work without energy from cellular respiration. Cellular respiration requires glucose and oxygen to create carbon dioxide, water, and ATP.

Which timeline shows the correct order of contributions made to the discovery of DNA?
(Options are in screenshots below!)

Answers

Answer:

The correct answer is B.

Explanation:

DNA was discovered in 1800, and then scientists studied DNA with X-Rays. After a while, scientists published a 3D model of DNA, and shortly after, scientists decoded DNA genes. So the answer is Option B.

Hopefully, this helps! :D

Ask your question below!

In the 1800s first the discovery of DNA was done, than the X-ray study of the DNA was done, after that the 3-D model of the DNA was developed, and finally human genetic code was decoded in the 1960s.  

• The DNA was initially identified in the late 1860s by Friedrich Meischer, a Swiss chemist.  

• After that Rosalind Franklin and Wilkins studied DNA with the help of X-ray diffraction tool.  

• In the 1953s, the 3D model of the DNA molecule was discovered by Watson and Crick.  

• Finally in the 1960s, Nirenberg and his colleagues at the National Institutes of Health deciphered the human genetic code.  

Thus, the second timeline shows the correct order of contributions made to the discovery of DNA.  

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Chromosomes create genes true or false

Answers

Answer:

false

Explanation:

genes are made up from dna and are created from viruses or inherited from our parents

Hope this helped! Have a good day!

Which of the four prokaryotes listed below is the most efficient?
A. facultative aerobes
B. obligate anaerobes
C. aerotolerant organisms
D. obligate aerobes

Answers

Answer:

B

Explanation:

what is the goal of seed dispersal? 10 points
A. to help plants grow more quickly
B. to have new plants that grow far away from parent plants so that they dont compete for resources
C. to spread different species of plants to different parts of the world
D. to spread seed evenly to a given area

Answers

Answer:

B. to have new plants that grow far away from parent plants so that they dont compete for resources

Explanation:

Predict how a lack of resources (food, water, shelter) would influence population size. Do you think the lack of availability would increase or decrease the size of a population? Why?

Answers

Answer:

a lack of resources would most likely decrease a population size because it will limit growth and decrease survival rates. There will also be more competition.

Explanation:

Please don't plagiarize. Thanks :)

everyone would
Die so population size would



Decrease
so BecAuse oRgansisms need population food and water and house to suvrbive

what force pulls down the top of a wave

Answers

Answer:

wind whips it up and gravity pulls it down.

Explanation:

Shannon is making a Venn diagram to organize the characteristics of cell walls and cell membranes. Which pair of characteristics both belong in the two areas of the Venn diagram that do not intersect?

Answers

Answer:

its b

Explanation:

Answer: B) Contains mostly cellulose; forms the outer layer of animal cells.

Explanation:

nya

what is a substance that increases the hydrogen ion concentration in a solution.

Answers

Answer:

Explanation:

Acid. is a substance that increases the hydrogen ion concentration in a solution.(hight H+ concentrations) ~When hydrochloric acid is added to water, hydrogen ions dissociate from chloride ions: HCl -> H+ + Cl− ~Addition of an acid makes a solution more acidic.

A student is comparing two solutions. Solution A has a pH of 4 and solution B has a pH of 10. Which best describes the solutions?

Solution B is more acidic than solution A.
Solution A is more acidic than solution B.
Solution B has more hydrogen ions than solution A.
Solution A has more hydroxide ions than solution B.

Answers

Answer:

Solution A is more acidic than Solution B

Explanation:

Answer:

The answer is B

Explanation:

I took the test and got it right :)

help asap its either a c or d​

Answers

Answer:

A) Simple Diffusion

Explanation:

Facilitated diffusion has a protein channel, while simple does not. If its not A, then its definitely D, no doubt

Which correctly describes the role of histones in eukaryotic cell division?

a) Histones connect sister chromatids.
b) Histones protect the ends of chromosomes.
c) Histones keep the DNA compact and organized.
d) Histones copy the DNA before division begins.

Answers

Histones copy the DNA before division begins is the correct role of histones.

What is Histone?

A chromosome's structural support is provided by a protein called a histone. Long DNA molecules found on each chromosome must fit into the cell nucleus.

To do it, the DNA wraps around complexes of histone proteins, giving the chromosome a more compact form. Additionally, histones are involved in the control of gene expression.

A nucleosome, which is made up of eight histone proteins, can exist. DNA can loop around a nucleosome much like a small spool. Thus, histones are crucial in maintaining the genome's order and neat wrapping inside a cell.

Therefore, Histones copy the DNA before division begins is the correct role of histones.

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Respiration is the process in which organisms break down food to release ____.
a.
energy
c.
sugar
b.
nutrients
d.
oxygen

Answers

Answer: a.  energy!!!

Explanation:

It's me again!! Hope this helped!! :D  

Answer:

Sugar

Explanation:

I am not completely sure but correct me if I am wrong. Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Hope it helps!!!!

2. Which of the following are REACTANTS in PHOTOSYNTHESIS? ​

Answers

Answer:

Carbon dioxide, sunlight and water

Explanation:

that is right

Which region is located between 60-90N and 60-90S?
Mid-Lats
Polar
Tropics
Tropical Rainforest

Answers

Answer:

The correct option is Polar

Explanation:

The polar region/arctic are located/extend from 66.5 degrees N (north) and also S (south) latitude to the north and south poles of the earth. From this, it can be deduced that the polar region is located between 60-90 degrees of N and 60-90 degrees of S.  Polar regions are far from the equator as a result of this and are characterized by very low solar radiation.

Polar or artic region is located between the coordinates 60-90N and 60-90S. The polar regions are extremely far away from the equator, which is situated at 0-degrees latitude.

The correct answer is:

Option B. Polar

The polar region is defined as the region situated 60-degrees north or south of the equator. The solar radiation in the polar region ranges from only 18 hours and 5 hours during winters.

The middle latitudes are situated between 30N and 30S of the equator. It is characterized by moderate sunlight.

Tropics or tropical rainforests are situated near the equator and usually experience a warm climate.

Therefore, option B is correct.

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what process produces sex cells (sperm and egg)?

Cellular Respiration
Osmosis
Meiosis
Mitosis

Answers

meiosis produces sex cells!
Meiosis. A human cell are produced by a two- part cell division process called meiosis

How do vaccinations work to provide immunity? and What body system regulates blood glucose levels? (For a Biology exam)

Thanks :)

Answers

Answer:

it trains the body immunity towards certain diseases

Explanation:

first of all we humans have two types of wbc cells phagocytes & lymphocytes. phagocytes produces pseudopodia which is like cytoplasm that traps or catches bacteria or viruses. lymphocytes produces chemical antibodies which destroy the viruses or bacteria by attaching to the virus and burst it out. Now when u get vaccinated u train those wbc cells for future viruses and hepl them to make antibodies to defend the body.

The blood glucose gets regulated by production of insulin in pancreas to maintain proper amount of glucose in the body

I need help on those two questions

Answers

6-C (breaks off)
7-C(they secrete acid that breaks away rocks)
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