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melisa1 [442]
2 years ago
14

Describe three examples of intracellular digestion by lysosomes

Biology
1 answer:
Harlamova29_29 [7]2 years ago
5 0

Answer ;

Phagocytosis is when smaller organisms or other food particles are eaten.

Autophagy is when a damaged organelle or small amount of cytosol becomes surrounded by a double membrane and a lysosome fuses with the outer membrane of the vesicle.

Enzymes break down the material. Food vacuoles fuse with a lysosome, whose enzymes digest the food.

Explanation;

-The Lysosomes are organelles that are responsible for intracellular digestion. Lysosomes are vesicles that contain hydrolytic digestive enzymes capable of breaking down large molecules into smaller ones.

-There are several ways in which different varieties of macromolecules may be digested by lysosomes. One mechanism is phagocytosis, the other is autophagy, which entails the removal of membrane-bounded organelles or other cytoplasmic components through the action of lysosomes, and lastly the hydrolytic enzymes may break down or digest the unwanted materials.

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Studentka2010 [4]
The answers are as follows:
1. <span>An inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate: t</span>his is called competitive inhibitor. A competitive inhibitor will compete with the substrate for the active site of the enzyme and bind to the active site, thus incapacitating the substrate from binding to the active site.
2.  An inhibitor binds to a site on the enzyme that is not the active site: this is called non competitive inhibitors. Non competitive inhibitors bind to other site in the enzyme which is not the active site of the enzyme. The binding of the inhibitor changes the conformation of the enzyme as well as the active site, thus making it impossible for the substrate to bind to the enzyme effectively.
3. <span>usually, a(n) inhibitor forms a covalent bond with an amino acid side group within the active site, which prevents the substrate from entering the active site or prevents catalytic activity: this is called irreversible or permanent inhibition. Permanent inhibitors form covalent bonds with the enzyme and prevent substrate from binding to the enzyme.
4. T</span><span>he competitive inhibitor competes with the substrate for the ACTIVE SITE on the enzyme: The active site of an enzyme is the place where the substrate normally bind in order to activate a enzyme. Competitive inhibitors are those inhibitors that compete with the substrate for the active site of the enzyme and prevent the substrate from binding there.
5. W</span><span>hen the noncompetitive inhibitor is bonded to the enzyme, the shape of the ENZYME is distorted. The non competitive inhibitors are those inhibitors that bind to other places in the enzyme instead of the active site. The binding of the non competitive inhibitor usually distort the shape and the conformation of the enzyme thus preventing the substrate from binding to it effectively.
6. E</span><span>nzyme inhibitors disrupt normal interactions between an enzyme and its SUBSTRATE. The principal function of enzyme inhibitor is to prevent the substrate from binding to the appropriate enzyme. This is usually done in the human system in order to regulate the activities of enzymes.</span>
6 0
2 years ago
white blood cell with fragments in its cytoplasm a. agranulocyte b. granulocyte c. thrombocyte d. platelet
Serjik [45]

Answer:

B. Granulocyte

Explanation:

Granulocyte is the type of white blood cell with fragments in its cytoplasm. These fragments usually help in the digesting the cells of the foreign body(pathogenic organisms).

There are three main types of Granulocytes which are known as the Neutrophils, eosinophils, and basophils. They all perform variety of functions ranging from phagocytosis to cell lysis of foreign bodies.

8 0
2 years ago
Q. A person’s blood glucose level fluctuates during the day, asrepresented in Figure 1. Two hormones, insulin and glucagon,are di
Minchanka [31]

Answer:

If the person has another meal after 5 pm, the glucose level in the blood will increase, and the insulin level too.

Several hours after the meal, the glucose levels will decrease, and the glucagon levels will increase.

Explanation:

When a person ingests another meal after 5 p.m, the glucose levels in the blood will increase, as the body does not need all that glucose right now the insulin levels in the blood will increase to store glucose for later. The glucagon levels after a meal are very low because the aim is to store glucose not use it.

Several hours after the meal, the body needs the energy to keep operating so it will use the glucose that was stored, to do this, the levels of glucagon in blood have to increase and release the glucose, and the levels of insulin in blood have to decrease.

7 0
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Cells sometimes use passive transport to move molecules across their membranes. The rate at which a cell engages in passive tran
masya89 [10]

Answer:

b

Explanation:

4 0
1 year ago
You are measuring length with a meter stick. however you do not realize that the first 4.0 centimeters of the meter stick are mi
ehidna [41]

Answer: Option B.

Precise but inaccurate.

Explanation:

It is precise because the measurement taken with well incremated tool reflect how close it is to the actual value i.e it has the quality of been exact but diet to the missing of 4.0 centimeter because a hungry beaver made a snack of it earlier that day the measurements will be INACCURATE because it does not conform with the result of the standard or correct value to be gotten.

3 0
2 years ago
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