Biology and Classification Lecture Notes

Vocabulary flashcards covering cellular biology, microorganisms, classification, plant systems, and animal types based on lecture notes.

Unicellular

Organisms that consist of one cell.

Multicellular

Organisms that consist of many cells.

Stimulus

A signal or change on environment they cause you to react or respond, such as getting hit causing you to cry.

Autotroph

An organism that makes its own food.

Heterotroph

An organism that gets food from others.

Protist

A simple organism that lives in moist places, has a nucleus, and is mostly one-celled.

Bacteria Characteristics

Tiny one-celled organisms that have no nucleus and reproduce quickly.

Bacteria Structure

Components include a cell wall, cell membrane, cytoplasm, DNA, and ribosomes.

Uses of Bacteria

Used to decompose waste, make yogurt, and produce medicine.

Virus

A tiny particle that reproduces inside cells; it is not a cell, needs a host to reproduce, and contains DNA or RNA.

Lytic cycle

A viral replication cycle that destroys the host cell.

Lysogenic cycle

A viral replication cycle where the virus stays inactive first.

Carl Linnaeus

The individual known as the father of classification.

Taxonomy

The science of classifying organisms by similarities and differences.

Vascular plants

Plants that possess xylem and phloem.

Nonvascular plants

Plants that do not have xylem and phloem.

Xylem

Plant tissue that carries water.

Phloem

Plant tissue that carries food.

Vertebrates

Organisms that possess a backbone.

Invertebrates

Organisms that do not have a backbone.

Fungus

An organism that absorbs nutrients; examples include yeast for bread and its use in creating antibiotics.