biology self test 1 1005

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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


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