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Bio 120 > Lecture 1 > Flashcards

Lecture 1 Flashcards

1
Q

What is biology

A

Study of life

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2
Q

How many characteristics of living organisms (that we know so far)

A

8

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3
Q

What are the characteristics of living things

A

1- organization
2- metabolism
3- growth and development
4- reproduction
5- response to stimuli
6- homeostasis
7- adaptation
8- heredity

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4
Q

What are the characteristics of living things

Organization

A

Living organisms are composed of 1+ cells which are considered the basic units of life

Cells are organized into tissues. Organs. And systems in multicellular organisms

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5
Q

What are the characteristics of living things

Metabolism

A

All living things go through metabolic processes which include chemical reactions that provide energy for vital activities and build cellular structures

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6
Q

What are the characteristics of living things

Growth and Development

A

Living organisms grow and develop according to specific instructions coded in their DNA. Growth can involve an increase in size and number of cells, while development refers to changes in the organisms structure and function over time

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7
Q

What are the characteristics of living things

Reproduction

A

Living organisms can reproduce. Either sexually or asexually. To produce new individuals and ensure continuation of their species

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8
Q

What are the characteristics of living things

Respond to stimuli

A

Living things can respond to environmental stimuli such as light. Temperature. And touch. This ability helps them to adapt to their surroundings and survive

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9
Q

What are the characteristics of living things

Homeostasis

A

Living organisms maintain a stable internal environment despite changes in external conditions. This regulation is crucial for their survival and proper functioning

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10
Q

What are the characteristics of living things

Adaptation

A

Over time living organisms evolve and adapt to their environment through natural selection, leading to changes in their physical and behavioural traits

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11
Q

What are the characteristics of living things

Heredity

A

Living organisms inherit traits from their parents through genetic material (DNA), which is passed down from generation to generation

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12
Q

Information is stored in

A

DNA

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13
Q

Information in DNA is copied into

A

RNA

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14
Q

The information in RNA guides the production of

A

Proteins

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15
Q

Central dogma of molecular biology

A

DNA-> RNA-> protein

This is a really efficient way to store information

All life on earth is based on this

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Bio 120 (3 decks)

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