Chapter 7 Biology Crossword

Endoplasmic reticulum

An internal membrane system in which components of cell membrane and some proteins are constructed

Lysosome

Filled with enzymes used to break down food into particles that can be used

Vacuole

Saclike structure that stores materials

Ribosome

Small particle of RNA and protein that produces protein following instructions from nucleus

Golgi apparatus

Stack of membranes in which enzymes attach carbohydrates and lipids to proteins

Mitochondrion

Uses energy from food to make high energy compounds

Chloroplast

Uses energy from sunlight to make energy-rich food

preexisting

Virchow said that "all cells come from ______ cells"

mitochondria

active cells like brain cells have many of these organelles to provide ATP

bilayer

because phosolipids which make up the plasma membrane are polar, the membrane has two layers of lipids, also called a ________

mosaic

because the plasma membrane is "speckled" with protein molecules, it is referred to as a fluid _____ model of a membrane

spontaneous

early belief that living things came from non-living things: "________________ generation"

endoplasmiereticulum

high folded organelle which transports molecules throughout the cytoplasm

cytoskeleton

includes micro filaments and micro tubules

airbubble

often mistaken for a cell or organism on a wet mount slide, but it isn't (usually perfectly round)

ribosome

organelle most involved with protein synthesis

surfacearea

organelles which have highly folded membranes have a large increase in this dimension

wall

outermost structure in all plant cells

golgicomplex

packages substances for export from the cell

plasmaolysis

plant cells do this during wilting

vacuoles

plant cells have many of these, especially a large centrally located one

higher

quantity term used when comparing electron microscope's magnification to that of a light microscope

less

quantity word which describes the number of cells you would see through the microscope if you changed objectives from 10X to 40X

hooke

scientist who first described cells from the cork layer of an oak tree

cella

short, hair-like extensions which can bend and either propel a cell or move substances past a cell

prokaryote

simple cell with no nucleus, bacteria

organelle

small structure within a cell which performs a specific function for the cell

hypotonic

solution concentration which causes the cell to swell

eukaryote

type of cell which has a membrane bound nucleus and organelles

osmosis

type of diffusion specific for water

scanning

type of electron microscope which presents a 3-D surface view of the object

selectively

type of permeability the plasma membrane demonstrates in passing certain molecules through itself

compound

use a ______ light microscope to see chloroplasts in a plant cell

envelope

what the double membrane surrounding the nucleus is called