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Zanzabum
2 years ago
7

Describe the similarities and differences in the way humans and insects obtain oxygen.

Biology
1 answer:
Molodets [167]2 years ago
4 0

Answer:

There are many ways.

Explanation:

Humans have a combined respiratory and circulatory system, whereas insects do not. In humans, the air is brought in through the mouth/nose, through the windpipe, and into the lungs, the oxygen is absorbed into the bloodstream where it can be transported to muscles and organs. However, insects take in air through tiny holes in their thorax and abdomen. These are called spiracles. The oxygen is stored in many dorsal air sacs to be used. Then carbon dioxide is expelled through the spiracles.

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why do plant cells occasionally switch from noncyclic electron flow (nef) to cyclic electron flow (cef)?
Blizzard [7]

Creating a proton gradient across the thylakoid membrane in higher plants uses cyclic electron flow (CEF), which primarily serves two purposes: (1) producing ATP and balancing the ATP/NADPH energy budget; and (2) defending photosystems I and II from photoinhibition.

ATP and NADPH are produced by noncyclic electron transport. The single product of cyclic electron transport was ATP. Both steps are required by a plant to produce the required amount of ATP for the Calvin Cycle. The electrons are released by photosystem I and then brought back into the system during cyclic photophosphorylation. However, in non-cyclic photophosphorylation, the electrons that the photosystems emit do not come back.

learn more about photosystems here;

brainly.com/question/13034934

#SPJ4

6 0
1 year ago
According to the _________________ theory, the retina has three types of color receptors, each of which is sensitive to one of t
Arisa [49]

Answer: the trichromatic theory of color vision

Explanation:  The theory began when Thomas Young proposed that color vision results from the actions of three different receptors.

4 0
3 years ago
Select the following statement(s) about how the organisms in the food chain store carbon that is(are)
Andrew [12]

Answer:

1.d. The crab expels carbon dioxide into the hydrosphere when glucose is converted into ATP.

2.The biggest changes in the land carbon cycle are likely to come because of climate change. Carbon dioxide increases temperatures, extending the growing season and increasing humidity. Both factors have led to some additional plant growth.

How does carbon move from living things to the atmosphere?

Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

Explanation:

Converts glucose and oxygen into water and carbon dioxide, which releases energy as ATP

Explanation:

Cellular respiration is the process in which sugars are broken down into energy that can be used, so energy - or ATP - must be a product. Also, the chemical equation for the process is the following (the reactants are on left side of the arrow while the products are on the right):

C_6H_1_2O_6 + 6O_2 ⇒ 6CO_2 + 6H_2O6CO

2

+6H

2

O

So, since C_6H_1_2O_6 + 6O_2 represents glucose and oxygen and 6CO_2 + 6H_2O6CO

2

+6H

2

O represents carbon dioxide and water, the answer must be the third option listed.

MARK A BRAIN LESS

7 0
2 years ago
The main job of a leaf is to make<br> food<br> carbon dioxide<br> energy<br> chlorophyll
erik [133]

Answer:

Energy (food)

Explanation:

It produces oxygen for us to breathe by taking IN the carbon dioxide , Food and energy which is glucose and the chlorophyll is inside the leaf specialized for making energy. Let me know if its correct

8 0
3 years ago
The pyruvate dehydrogenase complex converts pyruvate to acetyl coenzyme A, abbreviated acetyl CoA, which can then enter metaboli
nordsb [41]

Answer:

α‑ketoglutarate dehydrogenase

Explanation:

This is an enzyme complex ,which is analogous to pyruvate dehydrogenase. . Its catalytic activity is inhibited by it products succinyl Co A,it is also refers to as oxoglutarate dehydrogenase complex.(OGDC).

This enzyme complex  is similar to pyruvate dehydrogenase in  having  the same subunit structure, and using  the same type of co-enzyme.    

3 0
3 years ago
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