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loris [4]
3 years ago
12

In the Krebs cycle:

Biology
1 answer:
Aleksandr [31]3 years ago
7 0
Answer no 1 is correct :)
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Be able to compare/contrast humoral immunity with cellular immunity.
aksik [14]

Solution:

The difference between them are:


The humoral system of immunity is also called the antibody-mediated system because of its use of specific immune-system structures called antibodies. The first stage in the humoral pathway of immunity is the ingestion (phagocytosis) of foreign matter by special blood cells called macrophages. The macrophages digest the infectious agent and then display some of its components on their surfaces. Cells called helper-T cells recognize this presentation, activate their immune response, and multiply rapidly. While,


The cell-mediated immune response involves cytotoxic T-cells, or killer-T cells. Body cells that have been infected by foreign matter often present components of that material on their surfaces. Killer-T cells recognize these displays and respond by ingesting or otherwise destroying the infected cell. Killer-T cells are also important in the body's defenses against parasites, fungi, protozoans, and other larger cells that might have found their way into the body. The killer-T cells recognize these large invaders by their foreign proteins and then destroy them.  

This is the required answer.

6 0
3 years ago
Which statement best explains why cells separate and expel waste.
anastassius [24]

I would say the 2nd one It helps growth and repair of cells of orgasms

But your school would probably say the 3rd one It helps remove toxins from the body to maintain homeostasis

4 0
3 years ago
Read 2 more answers
Please put in order from smallest to largest (PLEASE HELP IM CRYING!!!!) ​
GarryVolchara [31]
I believe it is atom, then tree seedlings, then a cat, then a fence panel, then a pecan tree and lastly the house
8 0
3 years ago
Normal leukocytes use several protective mechanisms in combating disease-causing microbes such as bacteria. Which of the followi
Anna11 [10]

Answer:b; exocytosis

Explanation: leukocytes are amoeboid white blood cells, which are involved in immune response .such response included combating foreign bodies like micro organisms which invade the body.they do this by engulfing the micro organisms and digesting them.

Phagocytosis, pinocytosis, receptor mediated endocytosis are the ways in which the cells engulfs the Invaders.

In endocytosis,the membrane of the cell traps the organism by forming an invagination.it then encloses the micro organism and digests it.

7 0
3 years ago
The three most widely used psychoactive drugs in the world are
dem82 [27]
Alcohol,nicotine, and caffeine.
7 0
3 years ago
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