Biology Help Grade 11 ————->?

~~~~~~~~~~~~~~~~~~~~True Or False~~~~~~~~~~~~~~~~~~~~

1. Blue light has more enrgy than green light.
2. Chlorophyll absorbed by green light.
3. The synthesis reactions use carbon dioxide.
4. The calvin cycle produces PGAL.
5. Glycolysis takes place in the matrix of the mitochondria.
6. Most of the energy in glucose is related as ATP by the electron transport chain.
7. Fermentation is special from of aerobic respiration.
8. Plants use energy release by cellular respiration to make glucose.
9. Mitochondria have their own DNA and produce by fission.
10. Bioremediation can help solve environmental problems.

Write a true statement for each false below:
______________________________________
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4 easy problems in 7th grade science?

6) When molecules move through a membrane from a region of low concentration to a region of high concentration, the process is called
a. diffusion
b. passive transport
c. active transprot
d. fermentation
# 9) before the energy in food can be used by a cell, it must first be transferred to mileciles of
a. proteins
b carbohidrates
c dna
d atp

# 10) Which of the following doesnt perform mitosos?
a prokaryotic cell
b human body cell
c eukaryotic cell
d plant cell
12) How many chromatids are present in a chromosome at the beginning of mitosis?

13) Describe the 3 stages of the cell cycle on a eukaryotic cell.

THXX!!!

some ap biology question?

1.fermentation takes place in the
a.cytosol
b.mitochondrial outer membrance
c.mitochondrial inner membrance
d.mitochondrial intermembrance space
e.mitochondrial matrix

2.during photosynthesis, visible light has enough energy to
a.force electrons closer to the nucleus
b.excite electrons.
c.split a water molecule into hydrogen and oxygen
d.b and c
e.a,b, and c

3.splitting of carbon dioxide to form oxygen gas and carbon compounds
a.photosynthesis
b.respiration
c. both a and b
d. neither a nor b

4.organellese other than the nucleus that contain DNA include
a.ribosomes
b.mitochondria
c.chloroplasts
d. b and c
e. a,b, and c

thank you

biology help plz?

A product formed by the process of photosynthesis that is needed for all animal life on earth is __________.

A. water
B. ATP
C. NADPH
D. oxygen
2. All living things use energy in the form of ADP.

A. true
B. false
3. The products of respiration are carbon dioxide (CO2), water, and ATP.

A. true
B. false
4. Lactic Acid fermentation is a process that allows cells to release energy in the absence of oxygen. What is this type of respiration called?

A. Aerobic respiration
B. Oxygenated respiration
C. Anaerobic respiration
D. Deoxygenated respiration
5. Plants and animals obtain energy in different ways, but they both must transfer the energy obtained into a usable form. What is the usable form of energy called?

A. Phosphorous
B. ATP
C. DNA
D. NADPH
i need to graduate

Science Help ????????!!!!!!!!!!!!!!!!!!!! The diagrams are on this website it on the top there in order too?

http://viewmorepics.myspace.com/index.cfm?fuseaction=user.viewPicture&friendID=413118159&albumId=0 1. In an ecosystem, energy is transferred from one feeding level to the next. Which statement explains why approximately 10% of the energy is lost during each transfer?

A. It is transferred as thermal energy released from basic metabolic processes before it is transferred to the next feeding level.
B. The energy is locked into the bonds, which cannot be broken by the animal at the next feeding level.
C. The energy is transferred into an unusable form during the consumption process
D. The energy is returned to the sun once the individual ceases to live
2. Use the diagram below to answer the question.The diagram shows the foot structure of several birds. Which foot structure is likely to have adapted to living in water?

A. A
B. B
C. C
D. D
3. Use the pedigree above to answer this question. The sickle cell trait is most likely

A. dominant
B. recessive
C. sex-linked
D. caused by a mutation
4. Convergent evolution is a term used to describe the process of organisms evolving similar features due to sharing a similar habitat. However, the structures of the features are drastically different. Which of the following pairs is an example of convergent evolution?

A. Wing of a bird: flipper of a dolphin
B. Hand of a human: wing of a bat
C. Wing of an insect: wing of a bird
D. Hand of a human: foot of a human
5. Lactic Acid fermentation is a process that allows cells to release energy in the absence of oxygen. What is this type of respiration called?

A. Aerobic respiration
B. Oxygenated respiration
C. Anaerobic respiration
D. Deoxygenated respiration
6. Darwin’s finches provide an example of an evolutionary process that describes how populations of organisms can adapt and change when introduced to a new environment. As the finches migrated to other islands where food resources were different, over time, there were noticeable differences in beak structures between finches of the islands. This process is an example of

A. Convergent evolution
B. Adaptive radiation
C. Homology
D. Vestigial
7. One of the cellular processes is growth. However, if a cell becomes too large, it cannot maintain homeostasis (maintaining a stable internal environment) by moving nutrients and wastes through a cell efficiently. What process is a cell likely to undergo to ensure that homeostasis is maintained?

A. Photosynthesis
B. Cellular respiration
C. Mitosis
D. Protein synthesis
8. Plants have the ability to carry on photosynthesis to obtain energy. What energy transformation occurs during photosynthesis?

A. Chemical energy to light energy
B. Nuclear energy to chemical energy
C. Electrical energy to light energy
D. Light energy to chemical energy
9. Use the following information to answer the question Julian and Allison set up the following lab experiment. A pipette was filled with grape juice and yeast. Then it was inverted into a test tube filled with warm water. The students observed bubbles being released from the end of the pipette.Which of the following most likely identifies the gas being released?

A. Oxygen
B. Methane
C. Carbon dioxide
D. Nitrogen
10. Plants and animals obtain energy in different ways, but they both must transfer the energy obtained into a usable form. What is the usable form of energy called?

A. Phosphorous
B. ATP
C. DNA
D. NADPH
11. Which statement is a valid argument to support that viruses are not living organisms?

A. Viruses are harmful to living organisms
B. Viruses contain DNA and can reproduce alone
C. Viruses require the presence of a host cell in order to reproduce
D. Viruses transmit genetic information and change the function of a cell
12. The Germ theory describes how microorganisms invade and infect living organisms. The invention of what technological tool helped to construct the Germ Theory?

A. Microscope
B. Satellites
C. Telescope
D. Magnetic resonance imaging machine (MRI)
13. The table below is a taxonomic key for the genus Rana, more commonly known as frogs.This key can be used to distinguish four species of frogs. To which does the frog shown belong?

A. Rana spenocelphala
B. Rana clamitans
C. Rana catesbeiana
D. Rana vigrtipes
14. A student is attempting to identify the biological relationships among animals that are found locally. What characteristic would be most helpful to determine how closely the animals are related?

A. Cell type
B. Capability of making their own food
C. Absence of nucleus in cells
D. Presence of fur
15. Prokaryotic cells are different from eukaryotic cells. What charac

Which correctly describes how life begun in earth's primative atmosphere? Help!!!?

Need someone really knows Biology!

Choose best answer.

Which statement correctly describes how life might have begun in the shallow seas under Earth’s primative atmosphere?

(a)In the Archean eon, when there was an absence of free oxygen, prokaryotic cells developed in the shallow seas. These cells got energy through fermentation and had self-replicating RNA and other organic molecules.
(b)Eurkaryotic cells were the first to develop in the shallow seas using fermentation to get energy. They were little more than memebrane bound, self replicationg RNA.
(c) Eubacteria cells were the first to develop in the shallow seas using photosynthesis to get their envergy. They were little mor ethan membrane bound, self-replicating DNA and other organic molecules.
(d) In the Precambrain eon, when there was an absence of free oxygen, stromatolite cells developed in the shallow seas. They got their energy from photosynthesis and had self-replicating DNA and other organic molecules.

Homework Questions! 10 POINTS TO MOST CORRECT ANSWERS?

Cell Processes And Energy, And Something About Cancer

1. The First Stage Of Respiration Takes Place In The______
2. One product Of Fermentation In Yeast Cells Is______
3. Chromatin Condenses And Forms Rodlike Structures During_____
4. The Final Stage Of The Cell Cycle Is Called_______
5. During DNA Replication, Adenine Pairs Only With______
6. The Cell Grows To It’s Mature Size During_______
7. Most Cases Of Cancer Are Caused By_______
8. During Photosynthesis, Plants Produce Sugars And______
9. The Pigment In Green Plants That Captures The Energy In Sunlight Is Called________
10. Most Energy That Is Released During Respiration Is Produced In The_______
11. Each Identical Strand Of A Chromosome Is Called A(N)______
12. The Main Cause Of Lung Cancer Is______
13. Explain Why Photosynthesis And Respiration Are Considered Opposite Processes.
14. How Is A Cell Able To Produce Two Almost Identical Daughter Cells?
15. What Is The Basic Difference Between The Autotrophs And The Heterotrophs?

Various streptococci and lactobacilli were traditionally grouped together as lactic acid bacteria?

because of their characteristic fermentation. Most of them were found to have a DNA Guanine plus Cystosine (G + C) content of approximately 40%, but one of them had a G + C content of 58%. Should this organism remain in the same genus as the rest of the bacterial species? Explain your answer.

What happens to a pyruvic acid during fermentation?

after glycolysis oxegen may or may not be present, If there is not enough oxegen present fermentation occurs. So my question is what happens to the pyruvic acid during fermentation? thanks for any help

why would an organismutilize fermentation if it was wasteful of the energy in food molecules and posed the?

threat of killing itself with high levels of toxic alcohol?
a.The organism can survive short spells of anaerobic conditions and main growth.
b.if glucose levels are not high, there may be time to disperse the alcohol "waste"
c.fermentation can provide a rapid burst of ATP since it does not have to go through the full breakdown cycle.
d. all of the choices are advantages.
e. None of the choices is an advantage;anaerobes only survive where aerobes cannot.

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