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Furkat [3]
3 years ago
11

Proteins also act as ____ in cells to control reactions

Biology
1 answer:
Leno4ka [110]3 years ago
5 0
Enzymes, made primarily of proteins, help regulate the rate of chemical reactions in the body. They are like huge molecules with very complex structures ordered together to form an organized structure that allows the reactants to lock together in a certain way, often referred to as lock and key in textbooks.
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if i had an 87.29% grade in a class because i turned in an assignment late and i got 5 out of 10 on that assignment, what would
mrs_skeptik [129]
It depends on how many points out of how many points you had to get the 87.29%

But I think your grade is a B....

89.95% and up = A
79.95% to 89.94% = B
69.95% to 79.94% = C

so yeah
7 0
3 years ago
Imagine that a man is scratched by his cat. A phagocyte near the scratch site recognizes and engulfs a bacterium. Shortly therea
disa [49]

Answer:

The original phagocyte secretes cytokines that attract other phagocytes

Explanation:

Before phagocytosis occurs and with the presence of an original phagocyte at the scratch site mostly a macrophage (also a phagocyte), chemical signals signals are given off to attract phagocytes to the scratch site.

These chemical signals may be cytokines that are given off by macrophages located in the tissue near the infection site etc. These cytokines produced can then stimulate the recruitment of phagocytes including the neutrophils and monocytes from the blood.

5 0
4 years ago
An experiment was performed to study the progress of cells through the mitotic cell cycle. The compounds listed below were used
Hatshy [7]
<h2>Mitotic Cell Cycle</h2>

Explanation:

a. Cytochalasin: an inhibitor of actin microfilament

  • Cytokinesis is the process by which cytoplasm is divided into two cells hence generation of two daughter cells
  • In animal cells the division of cytoplasm starts with the assembly of contractile ring
  • Contractile band consists of actin and myosin and catalyze cleavage furrow formation
  • Cytochalasin is a drug that blocks the polymerization of actin filament
  • When cytochalasin is added dividing cell fails to undergo in cytokinesis due to defective assembly of contractile band

b. Colchicine: an inhibitor of microtubule formation

  • Colchicine tightly binds with free tubulin dimer and prevents its polymerization
  • In this case mitotic spindle apparatus do not assemble and cells unable to do partitioning of chromosomes into two groups
  • Thus cell division is arrested

c. Aphidicolin: an inhibitor of DNA Polymerase activity

  • Aphidicolin is used to induce cell cycle arrest via specific inhibition of DNA Polymerase α
  • It blocks the cell cycle at early synthesis(S) phase

d. Emetine: an inhibitor of ribosome activity

  • It blocks the protein synthesis in eukaryotic cells by binding to small subunit(40 S) of ribosomes
  • It interferes with the synthesis and activities of DNA and RNA
5 0
3 years ago
What can be bio-genetically grow tissues and organs
DedPeter [7]

Answer:

cells specialize to form specific tissue and organs because all cells have the same DNA. stem cells can develop into every type of cell inside the body.The cell is the basic unit of structure and function in all living organisms.

5 0
3 years ago
Read 2 more answers
Define the term, photosynthesis.
Nonamiya [84]

Answer:

The term photosynthesis is the process in which plants and other organisms capture sunlight and converts it into energy.

4 0
2 years ago
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