Shared Flashcard Set

Details

LE_Topic_1_Short_Response
Living Organisms
4
Biology
9th Grade
11/22/2019
Click here to study/print these flashcards.

Create your own flash cards! Sign up here.

Additional Biology Flashcards

 

 

Cards

Term

organ systems of the human body interact to maintain a balanced internal environment. As blood flows through certain organs of the body the composition of the blood changes because of interactions with those organs. state one change in the composition of the blood as it flows through the respiratory system.

 

 Definition

humans and other living organisms are made up mainly of chemicals composed of carbon, hydrogen, oxygen, and nitrogen, which combine to form sugars, starches, and proteins. all living organisms carry their genetic information in DNA molecules.

 
Term

cell communication involves a cell detecting and responding to signals from other cells. Receptor molecules play an important role in these reactions. human cells have insulin receptors that are needed for the movement of glucose out of the blood. 

A typical human liver cell can have over 90,000 insulin receptors. if a genetic error occurred, resulting in each liver cell in a person having only 1,000 insulin receptors, what specific effect would this have on the liver cells?

 

 Definition

The liver would receive less insulin.

- It would take more time for a given amount of glucose to enter liver cells.

- It would affect the ability of the liver to regulate the level of sugar in the blood.

 
Term

cell communication involves a cell detecting and responding to signals from other cells. Receptor molecules play an important role in these reactions. human cells have insulin receptors that are needed for the movement of glucose out of the blood.

state one way that the shape of the insulin receptor is related to its role in cell communication

 

 Definition

cells must communicate so that their activities can be coordinated. this is necessary for the organism to respond as a whole and to maintain homeostasis
Term

A scientist wanted to know whether the cells of a particular single celled green algae could survive without any mitochondria. the scientist removed all the mitochondria from hundreds of these cells. all of the cells died.

explain the most likely reason the green algae could not survive without mitochondria.

 

 Definition

The algae cells could not survive without mitochondria because they would be unable to carry out cell respiration, which releases the energy stored in nutrients for the cell to use.

 
Supporting users have an ad free experience!