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What is the function of a cells selectively permeable membrane?
Regulates what enters and leaves the cell
What is the process by which substances enter and leave cells and become distributed within cells?
Substances enter and leave cells through processes such as diffusion, facilitated diffusion, active transport, and endocytosis/exocytosis. Once inside the cell, substances can become distributed within cells through diffusion, cytoplasmic streaming, vesicular transport, and interactions with organelles.
How do cells resist oxygen toxicity?
Cells have antioxidant defense mechanisms in place to neutralize reactive oxygen species (ROS) that can be harmful. This includes enzymes like superoxide dismutase, catalase, and glutathione peroxidase that help detoxify ROS. Additionally, cells may upregulate antioxidant response pathways in times of oxidative stress to further protect themselves.
How would harmful substances in the mothers blood reach the embryo in her uterus?
Harmful substances in the mother's blood can reach the embryo in her uterus through the placenta. The placenta acts as a barrier between the mother and the embryo, but certain toxic substances can cross this barrier and enter the embryo's bloodstream, potentially causing harm to the developing fetus.
State two substances that pass into the blood?
Two substances that pass into the blood include oxygen and carbon dioxide. The blood carries fresh oxygen to the cells and tissues and removes waste materials.
What part of cells allow sugar oxygen and water to enter and waste to leave?
Cell membranes, specifically through channels and transport proteins, regulate the passage of nutrients such as sugar, oxygen, and water into cells and the removal of waste products. This selective permeability ensures that essential substances can enter the cell while harmful substances are kept out.
What does red blood cells fight in the human body?
Red Blood Cell's protect us from disease and other harmful substances that may enter your blood stream. -HorseLuv13
How do the necessary raw materials and harmful wastes enter and exit the cells in your body?
Raw materials and harmful wastes enter and exit the cells in your body by blood, the red blood carry oxygen from lungs to the body cells.
The organelle that protects cells from the damaging effects of medications and toxins is the?
The organelle that protects cells from the damaging effects of medications and toxins is the lysosome. Lysosomes contain enzymes that can break down and neutralize harmful substances that enter the cell.
What is the function of a cells selectively permeable membrane?
Regulates what enters and leaves the cell
What would happen if cell membranes were not selective permeable?
It would be easier for harmful substances to enter.
What cells attack germs or substances that enter your body and cause infections?
Your white blood cells have that job.
What is the process by which substances enter and leave cells and become distributed within cells?
Substances enter and leave cells through processes such as diffusion, facilitated diffusion, active transport, and endocytosis/exocytosis. Once inside the cell, substances can become distributed within cells through diffusion, cytoplasmic streaming, vesicular transport, and interactions with organelles.
How do substances for photosynthesis enter the plant?
Pores called stomata, which open and close by guard cells.
Does plastic substances releases any harmful substances when it exposes to sunlight?
Yes, when plastic substances are exposed to sunlight, they can release harmful substances such as BPA or phthalates. These chemicals may leach out of the plastic material and enter the surrounding environment, potentially causing harm when ingested or absorbed by humans or animals.
How do cells resist oxygen toxicity?
Cells have antioxidant defense mechanisms in place to neutralize reactive oxygen species (ROS) that can be harmful. This includes enzymes like superoxide dismutase, catalase, and glutathione peroxidase that help detoxify ROS. Additionally, cells may upregulate antioxidant response pathways in times of oxidative stress to further protect themselves.
What are the substances that enter the capillary from surrounding cells?
They substances transported by blood.Gases,Nutrients,Water,Hormones,Urea,Ammonia,Other waste materials etc.
