Answer:
A
Explanation:
Hope I helped
What is photosystem 1 and photosystem 2 and what do they do? What are the steps ?
P I and PII are proteic compounds present in the thylakoid membrane that contain about 300 chlorophyll molecules each.
Step IFirst of all light with a wavelength of 690nm is absorbed by P II. The light excites an electron that leads to the photolysis of water(H2O--->2H+ +2e- + 1/2O2). The two electrons released go into the electron transport chain. The second compound in electron transport chain is plastoquinone that is reduced when it accepts electrons then oxidised when it loses them to P I. The next two compounds are cytocromes that make hydrogen protons go inside the thylakoid when they recieve the electrons.(I will mention what happens to the H+ in the second step). The next compound in the electron transport chain is a compound that contains Fe and S. The electrons finally reach the last step: Reduction of NADP+ to NADPH+H+.
Step IIIn the second step is ATP synthesis. Hydrogen protons accumulate inside the thylakoid membrane. An electrochemical gradient is formed. The protons can leave the thylakoid according to this gradient through an enzyme.
When the protons flow through , it turns ADP into ATP.
To sumarize: the role of P II is O2 production through photolysis and ATP synthesis(indirectly) The role of P I is NADPH+H+ synthesis.
. What process is shown in the figure below?
Answer: I didn't see it yet
Explanation: I didn't see it yet
According to the visual, which three continents, as of 2004, are the largest consumers or energy per capita?
Answer:
the first largest consumer is china,then next united state and the third is canada
When a phosphate group is removed from an ATP molecule a(n)........................... Molecule is formed.
Answer:
ADP(adenosine monophosphate)
Explanation:
The hydrolysis of ATP occurs with release of energy form breaking the macroergic bond between the 2nd and 3rd phosphate groups.
biosphere
Question 5 of 25
How are photosynthesis and cellular respiration related?
A. Photosynthesis releases energy, while cellular respiration stores
energy
B. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
C. Cellular respiration breaks down glucose, while photosynthesis
produces glucose.
D. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
SUBMIT
Please help, if question is right I will give brainliest.
Answer:
Flagella
Explanation:
The flagella or flagellum has a long, tail-like extension.
What may happen if tectonic plates stopped moving?
A) Ocean water will freeze.
B) There will be no new mountain formations.
C) Volcanic activity will increase.
D) Continents will move towards the poles.
Answer:
b
Explanation:
b
Answer:
c
Explanation:
The membranes of mictochondria, chloroplasts, and bacteria do all of the following except
A). Pump ions against concentration gradients
B). Generate ATP
C). Generate chemical gradients
D). Catalyze the reactions of glycolysis
Answer:
D
Explanation:
Catalyze the reactions of glycolysis
Explain what beak will thrive the most in survival and reproduction. Why?
Answer:
The plastic spoon type beak worked the best with the sunflower seeds. This means that a bird with a spoon type beak will survive the best with a food source like the seeds and then can continue to reproduce through life. The charts show which types of beaks have a better chance of survival based off the food options in the environment.
Explanation:
hope this helps mark me please
HOW DO PROKARYOTIC ORGANISMS MAINTAIN HOMEOSTASIS?
Answer:
Prokaryotes can make proteins to help stop the negative effects of a change in either pH or temperature.
Explanation:
Proton pumps help balance out pH, while heat shock proteins help keep proteins together when temperature climbs too high. hope this helps
Which happens during crossing over?
A. Two sex cells join together and combine DNA.
B. Genes are exchanged between two alleles.
C. Genes are exchanged between two egg cells.
D. Chromosomes line up randomly during metaphase I.
In what city was Jesus born?
How many books are in the New Testament?
What type of insect did John the Baptist eat in the desert?
Who were the first apostles called to follow Jesus?
How many people did Jesus feed with five loaves of bread and two fish?
After Jesus was arrested, which apostle disowned him three times?
Answer:
1 Bethlem. 2 27. 3 locusts. 4Matthew. 5 5000 people 6 peter
NEED HELP ASAP!!!!!!
What would be the three amino acids that correspond to the mRNA sequence: GGACACCCG
Question 1 options:
arg, ser, pro
glu, pro, his
gly, his, pro *********
pro, his, pro
Amylose is Select one: a. a long, straight glucose chain. b. branched glucose chains. c. a long, straight fatty acid chain. d. branched amino acid chains.
Answer: A long, straight glucose chain (a major constituent of starch)
Explanation: Starch is mostly amylose (straight chain glucose polymer) but has varying amounts of branched glucose chains (amylopectin).
Fatty acids are hydrocarbons with a carboxylic acid group (-COOH) attached, so they are hydrophobic (don't mix with water) at one end and hydrophilic (water soluble at the COOH end)
Simple carboxylic acids don't have a long enough hydrocarbon chain to have this characteristic, e.g. CH3COOH acetic acid
Typical fatty acids found in nature include stearic acid with an 18-carbon chain
CH3-(CH2)16-COOH
how is the top layer of the ocean different from the deepest layer
Answer:
It gets colder and denser as you go deeper
Explanation:
Answer:
There is way less warmth, and sunlight, And way more pressure.
Explanation:
1..Why do organisms need
perform respiration?
Answer:
All organisms respire in order to release energy to fuel their living processes.
Explanation:
The respiration can be aerobic, which uses glucose and oxygen, or anaerobic which uses only glucose. Because this process occurs in all life, we call it a universal chemical process.
What is a stomata?
A. the little mouths on the leaf of a plant where they take in CO2,and release 02
B. Where the plant takes in water
A. the little mouths on the leaf of a plant where they take in CO2,and release 02
stoma=mouth
Those structures are located on the backside of the leaf
Which of the following is NOT true of Chlorophyll?
A) It reflects all the colors of light but absorbs the green.
B) It reflects the green wavelengths of light and absorbs all the rest.
C) It is essential for photosynthesis?
Answer: A.It reflects all the colors of light but absorbs the green.
Explanation:
Photosynthesis, which gives plants their green hue, requires chlorophyll. Therefore, option (A) is not true.
What is chlorophyll?Chlorophyll, the pigment that gives plants their distinctive green hue, is crucial to the process of photosynthesis, which provides energy for a plant's metabolism, growth, and reproduction. Because chlorophyll does not absorb the green wavelengths of white light, it is chlorophyll that gives plants their green hue. The plant appears green because it reflects that particular light wavelength. Autotrophs are plants that produce their own sustenance through photosynthesis.
The stroma, which is the area between the thylakoid and chloroplast membranes, is where the chlorophyll, the green pigment, is found.
Learn more about chlorophyll, here:
https://brainly.com/question/13500580
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1. How are the colors of the rainbow related to white light from the sun?
White light contains only the four secondary colors of the rainbow.
White light does not contain any of the colors of the rainbow.
White light contains only the three primary colors of the rainbow.
White light is made up of all the colors of the rainbow.
Answer:
And? What is the questIon??
Explanation:
What is a buffer?
a solution that can receive any amount of acid or base to form a neutral solution
a solution that can receive moderate amounts of acid or base with little change in pH
a solution that neutralizes acids and increases the pH of bases
Answer:
Buffer,in chemistry, solution usually containing an acid and a base, or a salt, that tends to maintain a constant hydrogen ion concentration
Explanation:
I'm pretty sure its b
what animal is this?
Answer:
It is a flying squril.
Explanation:
what are the parts of a cell and is the nucleus part of the cytoplasm?!
Answer:
part of cell are cell membrane,mitochondria,vacoules,ribosomes and many more ,yes nucleus is the part of cytoplasm because cytoplasm is a jelly like substance where all organelle of a cell are present and nucleus is also present in cytoplasm.
Explanation:
What’s the answer som1 answers plz
Which crop is preferably harvested by hand?
A. Wheat
B. Rice
C. Potato
D. Grapes
44Based on context, the term resistance in paragraph 6 means _______.
A: opposition
B: approval
C: variation
D: individualize
Answer: Its A Opposition
Explanation: Hope it helps
The spindle apparatus begins to become visible during
O anaphase
Ometaphase
O interphase
O prophase
O telophase
Answer:
answer is prophase
have a nice day
Explain why plants cells require both chloroplasts and mitochondria to meet their energy needs
Answer:
chloroplast is where photosynthesis takes place, and mitochondria stores and releases the energy, it's like having a battery but no cord to charge anything
Explanation:
need answer right now!
Your labmate's ligation reaction didn't work. The regular ATP had run out, so he fueled the reaction with dATP from the PCR kit. What advice can you give him
Answer: adding heat to the ligation reaction to provide energy to the system, instead of ATP.
Explanation:
Ligation is referred to as an act of joining, and the term refers in biology to an enzymatic reaction that joins a covalent bond between two biomolecules. The application of DNA ligation in research in molecular biology is defined in this video.
Given a 50 mL volumetric flask, 50 mL graduated cylinder,10mL pipette, 100 mL beaker, and 75 mL Erlenmeyer flask, which measuring instrument would you choose to measure 25 mL of water
Answer:10ml
Explanation: