Midterm Review

Front

What is a Negative Feedback Loop?

Back

A process that counteracts a change in a system to maintain stability, such as the regulation of blood sugar levels by insulin.

Front

What is the function of Mitochondria in a cell?

Back

Mitochondria are known as the 'powerhouse' of the cell, as they produce energy (ATP) through cellular respiration.

Front

What is an example of a Negative Feedback Loop in the human body?

Back

Maintaining body temperature is an example of a negative feedback loop.

Front

What happens to the concentration of O2 inside a cell over time?

Back

The concentration of O2 will increase inside the cell as it diffuses in.

Front

What is a mutation?

Back

A mutation is defined as a change in the DNA sequence.

Front

What role does insulin play in blood sugar regulation?

Back

Insulin helps lower blood sugar levels by allowing glucose to enter cells.

Front

What is the primary function of the Endoplasmic Reticulum?

Back

The Endoplasmic Reticulum is involved in the synthesis of proteins and lipids.

Front

What is the difference between positive and negative feedback loops?

Back

Positive feedback amplifies changes, while negative feedback counteracts changes to maintain balance.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.