What type of microscope can reveal details1000 times

smaller than those visible in light microscopes.

Electron microscopes

Name an organisms classified as a prokaryotes.

bacteria

An ____________is a group of organs that work

together to perform a specific function.

organ system

A group of similar cells that perform a particular

function is called

tissue

Which organelle would you expect to find in plant cells

but not animal cells?

chloroplast

All cells contain 3 things. What are they

Genetic material (DNA), Cell membrane and cytoplasm

Which means of particle transport requires input of energy from the

cell?

active transport

What structures are involved in cell movement?

microtubules and microfilaments

Who used a compound microscope to see chambers

within cork and named them “cells”?

Robert Hooke

Unlike the cell membrane, the ____________is a rigid

structure.

cell wall

__________ occurs because molecules

constantly move and collide with each other.

diffusion

What type of microscope can produce three-

dimensional images of a cell’s surface?

scanning electron microscope

What term describes the relatively constant internal physical

conditions of an organism?

homeostasis

German physician, who concluded that new cells

can be produced only from the division of existing

cells.

Rudolf Virchow

The function of the ________________regulates the movement of materials

into and out of the cell

cell membrane

Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?

mitochondrion

What advance in technology made the

discovery of cells possible?

the microscope

German botanist, who concluded that all plants are made of

cells.

Matthias Schleiden

He used a simple microscope to observe pond water and saw microorganism under greater

details.

Anton van Leeuwenhoek

function of the ___________helps a cell

keep its shape

cytoskeleton

The primary function of the ____________ is to support

and protect the cell.

cell wall

The cell membrane contains channels and pumps that help move materials from one side to the other. What are these

channels and pumps made of?

proteins

Which organelle breaks down organelles that are no longer

useful?

lysosome

Which 2 organelles are involved in energy conversion?

mitochondria and chloroplasts

list the levels of organization in a multicellular organism

from the simplest level to the most complex level?

cell, tissue, organ, organ system

The diffusion of water across a selectively permeable membrane is

called

osmosis

Which structure makes proteins using coded

instructions that come from the nucleus?

ribosome

Ribosomes that synthesize proteins are found on the __________ endoplasmic

reticulum.

rough

A ______________microscope allows light to pass through a specimen and focuses it using two lenses to form an image.

light

Moving materials from an area of low concentration to

an area of high concentration requires

______ transport.

active

What are the three major principles of the cell theory?

1. All living things are made up of cells.

2. Cells are the basic units of structure and function in living things.

3. New cells are produced from existing cells.

What provides the energy for active transport to take place?

ATP

Adenosine triphosphate

Describe the arrangement of the molecules in the phospholipid bilayer of the cell membrane.

(include hydrophilic and hydrophobic)

The molecules are arranged in a double layer. The phosphate heads of the molecules form the outer surfaces and are

hydrophilic( water-liking, and the fatty acid tails form the inner part of the membrane and are hydrophobic (water-fearing).