2A Cells as the Basis of Life

Question 1

What are living things?

Answer 1

Anything that can move, respire, sense, grow, reproduce, maintain equilibrium, excrete waste, and take up nutrients

Movement
Respiration
Sense

Grow
Reproduction
Equilibrium
Excretion
Nutrition

Question 2

What is Equilibrium?

Answer 2

all living things maintain a stable internal environment unique to individual species, meaning that organisms can tolerate environmental changes

Question 3

What is cell theory?

Answer 3

1. All living things are made up of cells
2. Cells are the smallest nad most basic units of life
3. All cells come from pre-existing cells

Question 4

What are prokaryotes?

Answer 4

A group of single-celled organisms with no nucleus and a circular loop of DNA.

eg. Bacteria and Archaea

Question 5

What are eukaryotes?

Answer 5

A group of single and multi-celled organisms with a nucleus and linear strands of DNA.

eg. Animals, plants, fungi, and protists

Question 6

What is a plasma membrane?

Answer 6

AKA cell membrane is the phospholipid bilayer and embedded proteins that separate the intracellular and extracellular environment

Question 7

What is cytosol?

Answer 7

Aqueous fluid that surrounds the organelles inside the cell

Question 8

What are ribosomes?

Answer 8

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Question 9

What is DNA?

Answer 9

a double-stranded nucleic acid chain made up of nucleotides. DNA carries the instructions needed for proteins which are required for cell and organism survival

Question 10

What is the nucleus?

Answer 10

A double membrane-bound organelle that protects and confines the genetic information of a call

Question 11

What is a plasmid?

Answer 11

A small, circular loop of DNA that is separate from a chromosome, typically found in bacteria