Answer:
The answer is Mutagen is biological agent that alters the genetic information of an organism
Explanation:
A mutagen is a physical, chemical or biological agent that alters or changes the genetic information of an organism and therefore increases the frequency of mutations above the natural level. it is a permanent change in the genetic material of a cell or a microorganism, which can alter a trait or a characteristic of a person or cause disease.
The cell membrane is comparable to a security guard. It regulates the substances that enter and exit cells, allowing necessary substances in and keeping harmful ones out.
The organelle that can be compared to a security guard who determines who is allowed to enter and exit a building is the cell membrane. The cell membrane, also known as the plasma membrane, is a biological structure that separates the interior of cells from the outside environment. It functions similarly to a security gatekeeper, regulating the transport of substances in and out of cells. For example, it allows useful substances such as glucose and amino acids to enter the cell while preventing harmful substances from entering. In this way, the cell membrane ensures the safety and functionality of the cell, acting as its security guard.
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B) Plant cells do not need nutrients since they make their own food.
C) Plant cells get nutrients through the decomposition of organic matter.
D) Plant cells, like animal cells, take in small molecules through the cell membrane.
A concentration gradient is the difference between
two concentrations
Active transport allows cells to transport molecules
against a concentration gradient
Diffusion results in a net overall movement from a low
concentration to a high concentration
In diffusion particles are moving around randomly in
all directions
Osmosis requires energy from respiration to be carried
out
Partially permeable membranes allow any molecules
to pass through them
Explanation:
a) True. The bigger the difference, the steeper the concentration gradient and the faster the molecules of a substance will diffuse.
b) True. Active transport requires cellular energy to achieve this.
c) False. Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration.
d) True. For diffusion to work, the particles must be able to move around.
e) True. Osmosis requires energy from respiration to be carried
out.
f) False. Partially permeable membranes allow only water but not other dissolved substances to pass through.
b. They are substrates for aerobic metabolism and if increased in the blood show that the cardiac muscle is not functioning normally.
c. These proteins are normally found inside cardiac muscle cells and if present in the blood indicate damage to the cells.
d. They are by-products of anaerobic metabolism (glycolysis) and if increased indicate that the heart is not receiving oxygen.
Answer:
c.These proteins are normally found inside cardiac muscle cells and if present in the blood indicate damage to the cells.
Explanation:
Answer:
Bull and cow not have udders
Explanation:
Thats
No, there is no breed of male cows that have udders. Udders are mammary glands found in female cows, and their purpose is to produce milk. The udders of female cows are an important reproductive feature that allows them to nourish their young with milk after giving birth.
No, there is no breed of male cows that have udders.
Udders are mammary glands found in female cows, and their purpose is to produce milk. Male cows, also known as bulls, do not have udders because they do not produce milk.
The udders of female cows are an important reproductive feature that allows them to nourish their young with milk after giving birth.
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