AP BIOLOGY

LABORATORY REVIEW

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do cells obtain the energy and materials necessary for the work they do?
A
They release nitrogen.
B
They take in nutrients.
C
They move around in the body.
D
They produce oxygen and carbon dioxide.
Explanation: 

Detailed explanation-1: -ATP. Specifically, during cellular respiration, the energy stored in glucose is transferred to ATP (Figure below). ATP, or adenosine triphosphate, is chemical energy the cell can use. It is the molecule that provides energy for your cells to perform work, such as moving your muscles as you walk down the street.

Detailed explanation-2: -Cells, like humans, cannot generate energy without locating a source in their environment. However, whereas humans search for substances like fossil fuels to power their homes and businesses, cells seek their energy in the form of food molecules or sunlight.

Detailed explanation-3: -Using a process called endocytosis, cells ingest nutrients, fluids, proteins and other molecules. An international team of researchers recently revealed new details about endocytosis, an activity that, when it malfunctions, can lead to diseases such as muscular dystrophy, Alzheimer’s and leukemia.

Detailed explanation-4: -Key Points. Animals obtain energy from the food they consume, using that energy to maintain body temperature and perform other metabolic functions. Glucose, found in the food animals eat, is broken down during the process of cellular respiration into an energy source called ATP.

Detailed explanation-5: -Our cells break down the sugars, fats, carbohydrates and proteins found in our food and convert them into the energy they need to keep our bodies going. They operate best when they have a steady diet with a healthy blend of those nutrients.

There is 1 question to complete.