Iwill mark brainliest!

1. the cell membrane is like because it
the same way the cell membrane regulates what
can enter or leave the cell.

2. the nucleus is like because it
the same way the nucleus is the control center of
the cell.

3. the mitochondrion is like because it
the same way the mitochondria makes energy in
the form of atp for the cell.

4. the golgi apparatus is like because it
the same way the golgi apparatus processes
proteins for shipment out of the cell.

5. the cytoplasm is like because
the same way the cytoplasm surrounds and bathes
all of the organelles within the cell.

6. the ribosome is like because it

the same way the ribosome uses the instructions in
dna to assemble (or make) proteins.

7. the vacuole is like because it
the same way the vacuole stores water and
nutrients for the cell.

Explanation:

1 . The cell membrane is like a security guard because he/she guards the entrance of a building and controls anyone or anything that enters or leave a building in the same way the cell membrane regulates what can enter or leave the cell.  

2. The nucleus is like brain because it is the control center of the human body which controls and regulates all activities of a human body in the same way the nucleus is the control center of the cell.  

3. The mitochondrion is like electricity unit or the power house of the cell because it generates and supplies electrical energy in the same way the mitochondria makes energy in the form of ATP for the cell.

4. The Golgi apparatus is like loading bay because it facilitates to store, sort, transport and shipment of cargo or goods out of the bay in the same way the Golgi apparatus processes proteins for shipment out of the cell.  

5. The cytoplasm is like a child's bathtub with toys floating on it because water in it surrounds and bathes all of the things floating on it in the same way the cytoplasm contains the fluid cytosol and surrounds and bathes all of the organelles within the cell.  

6. The ribosome is like the instruction manual because it provides instructions on how to use or assemble a product in the same way the ribosome uses the instructions in DNA to assemble (or make) proteins.  

7. The vacuole is like a cupboard because it stores all the things like books, clothes, etc in the same way the vacuole stores water and nutrients for the cell.

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.