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Pavlova-9 [17]
2 years ago
12

In what ways are plants involved in the carbon and oxygen cycles?

Biology
2 answers:
slega [8]2 years ago
7 0

Answer:

Plants use carbon dioxide in a process known as photosynthesis. In this process Plans give off oxygen as a waste product carbon dioxide moves from the air into the leaves of plants through tiny openings in the plants leaves

Animals and plants are connected to each other by the oxygen Carbon dioxide cycle

Reptile [31]2 years ago
7 0
When they're exposed to light, green plants use carbon dioxide from the atmosphere to manufacture living matter and release oxygen into the air. This process is called photosynthesis. Carbon dioxide is produced through the respiration of animals and plants, which consume oxygen and release carbon dioxide.
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A single-celled organism can be classified as a prokaryote based on the absence of —
lakkis [162]

Answer:

a nucleus or organelles :)

Explanation:

a prokaryote is a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles.

3 0
3 years ago
For each region of the lac operon on the F' plasmid, I+ P+ Oc Z− Y+ , determine whether the region is wild type (that is, it pro
UNO [17]

Answer:

A,B and E

Explanation:

  • I+: I refers to the lac repressor, the + indicates that the repressor is functional
  • P+:  P refers to the promoter region and the + indicates that the promoter is functional
  • Oc:  O refers to the operator region, but the Oc indicates that the operator is constitutive ie. that it is always on/ can't be turned off.
  • Z-: Z refers to the LacZ gene which produces β-galactosidase. Z- indicates that this gene is non-functional
  • Y+:  Y refers to the LacY gene which produces the permease protein. Y+ indicates that this gene is functional

So based on the breakdown above:

  • A is true because P+.
  • B is true because I+.
  • C is not true because the lac operon is an inducible system. The operator needs to be able to be repressed. In this case the operator is constitutive (always on)  which is not the correct form.
  • D is not true because Z-, no β-galactosidase is produced.
  • E is true because Y+.

Only A, B and E apply.

6 0
2 years ago
Which organs are responsible for destroying old red blood cells?
Elan Coil [88]
<span>Spleen is also known as the graveyard of RBC, if it helps u 

1.Stem cells in bone marrow make all blood cells. RBC lives about 120 days. 
RBC are destroyed in Spleen. This process takes place as: 
- RBCs are ruptured. 
- Heme and globin portions separated. 
- Globin > amino acids. 
- Iron transferred in transferrin into the blood > into bone marrow for reuse. 
- Heme > Biliverdin > Bilirubin > liver >small intestine. 



2.Reticuloendothelial cells participate in the destruction of senescent RBC's. The spleen is a well suited site of RBC destruction given that cells must course through 2-3 micron apertures in the walls of splenic sinusoids, which is an ultimate test of cell pliability. Rigid cells are entrapped and phagocytosed. Intra-erythrocyte inclusions are removed during splenic circulation. 
Destruction of RBCs happens within reticuloendothelial cells – NOT in the circulation. Globin and heme get recycled, porphyrin is degraded to bilirubin which is conjugated by the liver and excreted in the gut. Rate limiting step is conjugation. Indirect (unconjugated) bilirubin is result if this doesn’t happen. 
Normally ~10% RBCs lyse while in circulation Þ Hgb gets released into circulation and rapidly disassociates into alpha and beta dimers which are bound by haptoglobin. The Hgb/haptoglobin complex is transported to the liver. If haptoglobin is depleted, free Hgb circulates and is filtered by the kidney. Free Hgb is either reabsorbed by renal tubular cells or excreted as free Hgb in the urine. 


3. Another site reported that 
RBC destroyed in liver and spleen, by macrophages. 2 million destroyed per second. 
Hb is released and iron is recovered and returned to bone marrow.</span>
3 0
2 years ago
Study this brochure from NASA, which explains in more detail the instruments carried by the Juno spacecraft.
timurjin [86]

Answer: 1, 3, 4, and 5

Explanation:

3 0
3 years ago
Read 2 more answers
The process of translation occurs in the ______________________ of the cell
Debora [2.8K]

Answer:

dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Explanation:

6 0
2 years ago
Read 2 more answers
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