- Do bacteria need to eliminate waste?
- Do viruses breathe?
- How do viruses die?
- Do viruses have feelings?
- What happens if waste is not removed from the body?
- How do fungi excrete waste?
- Is bacteria a living thing?
- Does pure oxygen kill bacteria?
- What is the oldest virus?
- Do viruses excrete waste?
- What removes waste from the body?
- Does bacteria have a lifespan?
- Does freezing kill bacteria?
- What is excrete waste?
- What is the waste product of bacteria?
- How do you excrete waste?
- Do bacteria need oxygen?
- How do bacteria grow?
Do bacteria need to eliminate waste?
Bacteria are single-celled, microscopically small organisms.
Bacteria need food, but they do not need a way to eliminate wastes..
Do viruses breathe?
It doesn’t breathe, it doesn’t eat, it doesn’t excrete, and it doesn’t grow – so it can’t be alive, can it? It hijacks a living cell and uses it to produce so many copies of itself that it bursts the cell – so it can’t be dead, can it? What is it?
How do viruses die?
Strictly speaking, viruses can’t die, for the simple reason that they aren’t alive in the first place. Although they contain genetic instructions in the form of DNA (or the related molecule, RNA), viruses can’t thrive independently. Instead, they must invade a host organism and hijack its genetic instructions.
Do viruses have feelings?
*Viruses and cells don’t actually have preferences, thoughts or feelings.
What happens if waste is not removed from the body?
Your body also needs to remove the wastes that build up from cell activity and from digestion. If these wastes are not removed, your cells can stop working, and you can get very sick. The organs of your excretory system help to release wastes from the body.
How do fungi excrete waste?
Fungi, because its heterotrophic, can’t release its waste through cellular respiration (photosynthesis) but instead releases a special enzymes which will break down its waste product. … The plants take in food and through the stomata, excretes oxygen, its waste. Animals have the most interesting way of excretion.
Is bacteria a living thing?
Bacteria (singular: bacterium) are a major group of living organisms. Most are microscopic and unicellular, with a relatively simple cell structure lacking a cell nucleus, and organelles such as mitochondria and chloroplasts. Bacteria are the most abundant of all organisms.
Does pure oxygen kill bacteria?
Anaerobic bacteria live in an environment devoid of oxygen and to anaerobic bacteria even ordinary oxygen is toxic. When anaerobic bacteria is engulfed by clusters of oxygen composed of 100% pure oxygen and is bombarded with electrons shots, it quickly dies. Aerobic bacteria live in normal air containing 21% oxygen.
What is the oldest virus?
Smallpox and measles viruses are among the oldest that infect humans. Having evolved from viruses that infected other animals, they first appeared in humans in Europe and North Africa thousands of years ago.
Do viruses excrete waste?
Viruses are acellular particles that lack the properties of living things but have the ability to replicate inside living cells. They have no energy metabolism, they do not grow, they produce no waste products, they do not respond to stimuli, and they do not reproduce independently.
What removes waste from the body?
The excretory system removes metabolic wastes from the body. The major organs of excretion are the kidneys, a pair of bean-shaped organs located below the liver. The kidneys filter blood and regulate water balance in the body.
Does bacteria have a lifespan?
Bacteria divide somewhere between once every 12 minutes and once every 24 hours. So the average lifespan of a bacterium is around 12 hours or so.
Does freezing kill bacteria?
“Freezing food kills harmful bacteria that can cause food poisoning.” Bacteria can survive freezing temperatures. Freezing is not a method for making food safe to eat. When food is thawed, bacteria can still be present and may begin to multiply.
What is excrete waste?
Excretion is a process by which metabolic waste is eliminated from an organism. … These chemical reactions produce waste products such as carbon dioxide, water, salts, urea and uric acid. Accumulation of these wastes beyond a level inside the body is harmful to the body.
What is the waste product of bacteria?
Gaseous wastes Carbon dioxide is produced by all animals and by green plants in darkness. Nitrogen gas is produced by denitrifying sulfur bacteria (Thiobacillus), and ammonia is excreted by decay-causing bacteria and by most invertebrate and vertebrate animals.
How do you excrete waste?
Excretion gets rid of carbon dioxide, water, and other, possibly harmful, substances from your body. Your lungs excrete carbon dioxide as you breathe out, your kidneys filter out nasties to produce urine, removing nitrogen waste from your body, and your skin sheds excess salt through sweat.
Do bacteria need oxygen?
Oxygen. … Whereas essentially all eukaryotic organisms require oxygen to thrive, many species of bacteria can grow under anaerobic conditions. Bacteria that require oxygen to grow are called obligate aerobic bacteria.
How do bacteria grow?
Bacteria do not grow and multiply the same way as animals or humans. They take in nutrients and reproduce by dividing – one bacteria splits and becomes two bacteria, two become four, four become eight and so on. Doubling can occur quickly if the conditions – enough nutrients, proper temperature, adequate moisture, etc.