1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Marizza181 [45]
3 years ago
14

The signal for apoptosis can come from outside or inside the cell. Give one example when the signal comes from outside the cell

and two examples of cellular occurrences that would prompt an apoptosis signal from inside the cell.
Biology
1 answer:
Svetach [21]3 years ago
5 0

Answer:

- A signal for apoptosis that comes from outside the cell is when a cell detaches from extracellular matrix. If this happens, a transmembrane signal is triggered.

- Two examples of cellular occurrences that would prompt an apoptosis signal from inside the cell are:

1. Damaged DNA

2. Increase of cytosolic calcium concentration

Explanation:

Apoptosis can be activated from an intrinsic or an extrinsic pathway. The intrinsic pathway is activated when a cell senses stress (for example, damaged DNA or high cytosolic calcium concentration) and triggers death proteins to activate apoptosis mechanism inside of it; the extrinsic pathway refers to the apoptosis triggered by signals that come from other cells. In this scenario, ligands bind to cell-surface death receptors and activates a death-inducing signal.

You might be interested in
Match the following organs and organ systems. 1.digestive system brain 2.central nervous system tracheal system 3.respiratory sy
Amiraneli [1.4K]

The correct macthing of the organs with their organ systems is as follows.

1. Digestive system - intestines.

2. Central nervous system - brain.

3. Respiratory system - tracheal system.

4. Excretory system - bladder.

Digestive system is made up of the alimentary canal consisting of the digestive organs and the glands. Among the digestive organs, the intestines play a major role in the process of digestion. The small intestine is the site of complete digestion which is associated with the pancreas and liver. The large intestine is involved the absorption of water from the digested food and remaining waste material is stored and thrown out of the body during defecation.

The central nervous system is made up of the brain and the spinal cord. The brain makes the largest part and the functional of the central nervous system. It controls most of the activities of the body. It is made up of three parts called the cerebrum, cerebellum and medualla oblongata and is protected by the skull.

The respiratory system is divided into the upper respiratory tract consisting of the nasal cavity, pharynx and larynx, and the lower respiratory tract consisting of the trachea, bronchi, bronchioles and the alveoli. The trachea or the wind pipe is a cylindrical tube infront of the oesophagus, supported by 16-20 C-shaped hyaline cartilage. It serves as a passage for air to move in and out of the lungs.

The excretory system is made up of a pair of kidneys, a pair of ureters, an urinary bladder and an urethra. The urine produced by the kidney flows through the ureters and is collected in the urinary bladder. A spinchter (a ring of muscle) guards the opening of the bladder into the urethra and relaxes only at the time of urination under the impulse from the brain.

6 0
3 years ago
How would an increasing shark population most likely affect this ecosystem?
Lemur [1.5K]
D. The octupus population would decrease.

This is because if more sharks were in the ecosystem than they would feed on more octopus, decreasing the population of them.
5 0
3 years ago
When a heterozygous organism reproduce asexually, can one of the offspring be different from the parent?
Genrish500 [490]
Yes they can be different
4 0
3 years ago
Which statement best describes the relationship of photosynthesis and energy?
Lunna [17]

Answer:

The process of photosynthesis is energy-storing because the process converts light energy into chemical energy, which is  stored in the bonds of glucose.

Explanation:

8 0
3 years ago
Phagocytosis occurs in many cells. The protist called an amoeba relies on phagocytosis for nourishment. Take a look at the image
mr_godi [17]

Answer:

I believe D would be the answer

Explanation:

As in the first part the pseudo podium is engulfing the particle which is more similar to taking food and the next part in the phagosome the particle is engulfed and further the enzymes would be released which would digest the particle hence similar to digestion

3 0
3 years ago
Other questions:
  • Which type of transport requires energy?
    13·2 answers
  • All of the following are examples of organic matter soil except
    9·1 answer
  • What is an surfactant?
    7·1 answer
  • The magnetic field of Earth was most likely created by (2 points)
    10·1 answer
  • Answers I got more just wait
    10·1 answer
  • The function of a protein is dependent upon the shape into which the chain of amino acids folds. Many noncovalent interactions a
    12·1 answer
  • Why were the fossil remains of Mesosaurus important to Alfred Wegener?
    11·1 answer
  • 8. Short Answer Why is 'seahorse' not a good scien-<br> tific name?
    13·1 answer
  • Carol and Sam were using the microscope in science class. They used a dropper to put some pond water on their microscope slide.
    10·1 answer
  • What are the contributions of each of these scientists to the cell theory? And how did that information contradict what was beli
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!