Introduction to cellular + molecular biology

Question 1

What is cell theory?

Answer 1

-multicellular organisms are derived from a single cell
-cells obtain energy + utilize chemicals
-cells use hereditary information that’s passed on during cell division

Question 2

What are the general characteristics of cells?

Answer 2

-can obtain energy from light and/or chemicals
-can use energy to grow + multiply
-contain hereditary information that’s passed on to its progeny

Question 3

What are the physical characteristics of cells?

Answer 3

-all cells are enveloped by a plasma membrane
-eukaryotic cells have organelles

Question 4

What does a plasma membrane do?

Answer 4

Provides a physical barrier between the cell + its environment

Question 5

What is the content of eukaryotic cells?

Answer 5

-nucleus, mitochondria, endoplasmic reticulum, Golgi, lysosomes, peroxisomes, cytoskeletal structure
-in plants: chloroplasts

Question 6

Where are vacuoles found?

Answer 6

-prominent in plant cells
-found in some animal + bacterial cells

Question 7

What is the central dogma of molecular biology?

Answer 7

-genetic information stored as DNA
-DNA copied into RNA by transcription
-RNA used to make protein