biology self test 1 1005
Chloroplast
Food-making body
DNA
Genes are made up of this substance
cell wall
Layers of cellulose outside the cell
Tiny chambers were first observed and described from microscope observations by a man named
Robert Hooke
root
absorption
what is it meant by the phrase "plants are green factories"
because of the complex network of processes occurring to produce needs, not just for green plants but for all
the statement " all plant and animal tissue is made up of tiny units" is known as the
cell theory of life
He (the man in 1.016) called the tiny cork chambers he observed
cells
Chloroplasts contain a green substance called
chlorophyll
the orange color of carrot roots and of marigold flowers comes from cell bodies known as
chromoplast
the thread like objects in the nucleus are the and carry the of inheritance
chromosomes and genes
Cell activities are controlled by chemical messengers from the vacuole
false
a simple cell is a good description since most cells are so small and influence so little in life
false
between five or ten different types of cells are in the human body
false
the bodies that break down food molecules to form DNA are the ribosomes
false
the main difference among plants is size-trees, shrubs, herds
false
leaf
food making
what are three ways plant cells differ from animal and human cells
larger vacuole, has cell wall, has chloroplast
the functions of ribosomes is
protein synthesis
what are two ways plant cells are like animal and human cells
reproduce and contain a nucleus
fruit
seed dispersal
flower
seed production
Gods great care for life on earth is shown in intricate detail and beauty in even microscopic life
true
Plant cells miniature factories that make thousands of chemical compounds for themselves and the whole world
true
one definition of life is an uninterrupted succession of cells
true
one reason plants do not move is the rigid walls of the cell
true
the cell communication system for chemical messages and material is thought to be the membrane system known as endoplasmic reticulum
true
a part of a cell that may contain crystals or poisons harmful to living protoplasm is the
vacuole
Mitochondria
A body that releases energy from foods
Nucleus
Cell headquarters
the what is a dot or smaller dark body containing RNA in the nucleus
nucleolus
what two parts are the cells divided into
nucleus and cytoplasm
what are three cell activities associated with a cell body, or organelle
nucleus orders and controls chemical messages mitochondria involved with energy release in the cell the membrane structure the regulates passage of material
Potato tuber cells have leucoplasts which help
starch storage
stem
support of leaves
what is the problem of describing the unit of life as 'a simple cell"
there're many different functions to the cell so its more complicated than it is easy
