unit 3 bio quiz

Robert Hooke

observed thin slices of cork, found cells through a microscope. named “cells”

Leeuwenhoek

First person to see living cells

Schleiden

Stated all plants composed of cells

Schwann

Stated all animals are composed of cells

Virchow

That all cells come from other cells

8 cellular functions

Absorption, digestion, respiration, excretion, egestion, solid, secretion, homeostasis, reproduction

Difference between pro and eukaryotic cells

Pro don’t have membrane, eukaryotic cells do

Absorption

Transport of substances into cell

Digestion

Breakdown of absorbed substances

Respiration

Breakdown of food molecules with a release of energy

Excretion

Removal of liquid waste materials

Egestion

Removals of non soluble waste

Secretion

Releases bio substances that is helpful for other cells

homeostasis

Maintains phycological equilibrium

Reproduction

Produces more cells

Cytoplasm

Jelly like, fills in cells

Organelles

Structure in a cell, has its own special function

Cells are what?

Basic units of life

Extracellular matrix

Network of proteins and molecules that support cell structure

3 main idea of cell theory

All organisms are made of one or more cells, cells are the basic units of life, and all cells come from pre existing cells

Why are cells small?

Because of surface area volume, more larger the cell is the more energy is needed.

Plasma membrane

Separates the outside exterior to the interior of a cell

Diffusion

The movement of particles from higher or lower concentrations.

Isotonic, hypotonic, and hypertonic?

Are solutions

Isotonic solution

In which concentration of solutes equal to that of a cell in a solution

Hypertonic

A greater solution

Hypotonic

A solution that is less in concentration

Active transports

Transport of molecules

Passive transport

Does not require energy to move substances across cell membrane

Fasciliated membrane

Uses carrier molecules to move targeted molecules across membrane

Difference between Pinocytosis and phagocytosis

Pino is the ingestion of liquid droplets while phago is the ingestion of solid particles.