Biology Introduction

Question 1

What is biology?

Answer 1

The study of all living things, including prokaryotic and eukaryotic organisms

Question 2

Homeostasis

Answer 2

All living organisms, including individual cells, endeavour to maintain a stable internal environment, despite external change

Question 3

What is the cell a basis of?

Answer 3

The cell is the fundamental unit of structure and function of life.

Question 4

What is the smallest structure considered to be alive?

Answer 4

The cell

Question 5

What are the 7 characteristics of living things? All living things are:

Answer 5

1. Are organized (cells, tissues, organs)
2. Acquire materials and energy (and use them)
3. Reproduce
4. Respond to stimuli (danger, food)
5. Are homeostatic (maintain pH, temp, etc.)
6. Grow and develop (life stages, after injury)
7. Are adapted (suited to their way of life

Question 6

Characteristics of Eukaryotic cells

Answer 6

• Exukaryotic cells have nuclei and other membrane-based organelles
• more advanced cell type
• ex. Animal cell, plant cell, fungus cell

Question 7

Characteristic of prokaryotic cells

Answer 7

• Have a cell membrane, but no membrane-based organelles
• less advanced cell type
• have no nucleus, but do have DNA (stored in nucleoid region)
• ex. Bacteria

Question 8

Characteristics of the Plant cell

Answer 8

• a eukaryotic cell
• they have chloroplasts which allow plants to produce sugar from sunlight in the process of photosynthesis
• has a non-living cell wall for structure
• no centrioles