1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alina [70]
2 years ago
6

How dose the cell wall protect a plant cell?

Biology
1 answer:
Novay_Z [31]2 years ago
8 0

Answer:

It provides support and maintains the cells shape.

Explanation:

You might be interested in
Why can't we use seawater to irrigate our crops?
hichkok12 [17]
The salt in the water will dry out the plants leaving the plants more in need of water than before.
8 0
3 years ago
What type of variation is necessary for natural selection to occur
Rzqust [24]
Genetic Variation
Natural selection results in organisms that are better suited to their environment are able to pass on genes to create strong offspring
4 0
3 years ago
Read 2 more answers
Write a three paragraph essay on cellular respiration.Each paragraph should cover one step,in order.Each paragraph should be 3-5
inna [77]

Answer:

Cellular Respiration

As you all know, cellular respiration is one of the, if not the, most important process that goes on in our bodies and other animals' bodies today. Cellular respiration is the process that is opposite from photosynthesis. While plants are taking in carbon dioxide and water to make sugar and oxygen, cellular respiration uses the oxygen and sugar o make carbon dioxide, water and 36 ATP. The three "mini processes" that take place during cellular respiration are glycolysis, oxidative respiration, and the electron transport chain. Fermentation also occurs in some cases where there is no oxygen present.

Glycolysis is the first stage in cellular respiration. It starts with a six-carbon glucose. Then, two ATP come and are converted to two ADP and two phosphates. Those same phosphates are added to the glucose to make a six-carbon glucose phosphate. That is then divided into two 3-carbon sugar phosphates. ADP comes and leaves charged as ATP because of the phosphate. Without the phosphates the process finishes with two 3-carbon piruvates.

If there is no oxygen present after glycolysis, then the next process is fermentation. Fermentation takes the 3-carbon piruvates from glycolysis and adds and electron to them. The result is lactic acid in animals and ethyl alcohol and carbon dioxide from plants, yeast and fungi. Oxygen can then be added back to the lactic acid to form piruvate again.

After glycolysis or after the oxygen is added back to lactic acid from fermentation, the oxidative respiration, also known as the Krebs cycle, takes place. The 3-carbon piruvates are converted to acetyl-CoA. That is then turned into a 6-carbon citrate. After an electron is added to NAD+ to turn it into NADH, a 5-carbon molecule is formed. Then it turns into a 4-carbon molecule which is then recycled.

The electron transport chain is occurring the whole time that cellular respiration is taking place. It starts with a NADH and a FADH2. Electrons and hydrogen ions are added until the final results are NAD and 2H which yields 32ATP and turns O2 into H2O.

Over all there is 2ATP made during glycolysis, 2ATP made during Krebs cycle, and 32ATP made during the electron transport chain for a grand total of 36ATP!!! After all these products are made they are then converted back by photosynthesis and the cycle goes on and on and on.

5 0
3 years ago
The primary neurotransmitter at the neuromuscular junction is
aleksandrvk [35]

Answer:

<u>acetylcholine</u>

Explanation:

In the pre-synaptic knob there are vesicles which contain a transmitter substance called acetylcholine. When an impulse reaches the synaptic knob, it stimulates the vesicles to move towards the pre-synaptic membrane releasing the acetylcholine.

The transmitter substance makes the membrane permeable. The neuromuscular junction contains the sensory neurone(afferent), motor neurones(efferent) and the relay neurones(connector).

5 0
3 years ago
During the 1980s, iran and iraq _____.
Fittoniya [83]
During the 1980s, iran and iraq battled in a war from september , 1980 - august 1988.
8 0
3 years ago
Read 2 more answers
Other questions:
  • When a person experiences an earthquake near its epicenter, which wave will they most likely feel first?
    13·1 answer
  • Your muscles produce this when there are isn't enough oxygen for aerobic respiration
    12·1 answer
  • A population of dogs can be either brown or black; the black allele (B) has complete dominance over the brown allele (b). Given
    14·2 answers
  • When you are in the resistance stage of stress your body is blank damage caused in the alarm stage?
    6·1 answer
  • Low blood levels of oxygen can bring on? <br> A. Sneezez<br> B. Hiccups<br> C. Coughs<br> D. Sighs
    14·2 answers
  • True or False: Biodiversity is the variety of life forms that exist or existed in the past.
    10·1 answer
  • Name the type of classifications of tissue formed by combination of cell.
    6·1 answer
  • What are the four structures of the joint​
    9·1 answer
  • Huntington Disease is an autosomal recessive condition. Which percentage
    11·1 answer
  • Begin at the ovaries of susie and the testes of billy.track the processes of ovulation for susie and ejaculation of billy.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!