55 terms

Quarter 1 Science Study Guide

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What are the characteristics of plants?
1. Autotrophs
2. Have cell walls.
3. Eukaryotes
In what plant cell structure is water stored?
Vacuole
How do vascular plants differ from nonvascular plants?
How they transport materials
How do ferns and mosses differ?
Ferns have true vascular tissue.
Photosynthesis in plants produces what?
Oxygen and sugar
What are the characteristics of vascular plants?
1. They transport water and food.
2. Supports the stem and leaves.
3. Exposes leaves to the sun.
What are the stages of a plant's life cycle?
1. Sporophyte
2.Gametophyte
What happens in the phloem?
Food goes down.
What are the parts of a seed?
Embryo
Cotyledon
Stored food
What characteristics do gymnosperms share?
They produce naked seeds
What is the reproductive structure of most gymnosperms?
Cones
What characteristics do all living things share?
Cellular organization
Use energy
Reproduce
What is a change in an organism's surroundings that cause it to react?
A stimulus
What is homeostasis?
The maintenance of stable internal conditions in an organism.
What is taxonomy?
The scientific study of how living things are classified.
Why do scientists organize living things into groups?
To be able to study them more easily.
What is the broadest classification level?
Domain
The more classification levels organisms share, the more what?
the more characteristics they have in common.
Which group of organisms includes only multicellular heterotrophs?
Animals
What did the experiment of Redi and Pasteur help to demonstrate?
Living things do not rise from non-living things
Fur is an adaptation that allows mammals to do what?
To survive in cold climates
What is the flexible supporting rod that all chordates have at some point in their lives?
Notochord
If an animal is an ectotherm, it has what?
It has the temperature of its surroundings. It is cold blooded.
What does the backbone surround and protect in a vertebrate?
The spinal cord
Most fishes reproduce by means of what?
External fertilization
To which phylum do vertebrates belong?
Chordata
How do cephalopods move?
By jet propulsion
Name the things that are common to all arthropods.
1. Segmented bodies
2. External skeletons
3. Jointed attachments called appendages
What are the stages of complete metamorphosis?
Egg
Larva
Pupa
Adult
What does a cnidarian use to capture prey?
Stinging cells
What are the characteristics shared by all animals?
Their bodies have cells
What is the process by which a new organisms forms from the joining of an egg and sperm.
Reproduction
What are the parts of cell theory?
1. All living things are composed of cells.
2. Cells are the basic units of structure and function of living things
3. Cells are produced from other cells.
What is the function of a cell membrane?
It controls what enters and leaves the cells.
Which organelle is the control center of a cell?
Nucleus
What best describes the function of mitochondria?
They convert food molecules into energy that the cells can use.
Unlike Hooke, Leeuwenhoek observed cells that what?
Were alive
How does a bacterial cell differ from a plant or animal cell?
It doesn't have a nucleus.
What are specialized found in?
Many celled organisms
What is the function of a cell wall?
To support and protect the cell.
Unlike the cell wall, the cell membrane what?
The cell membrane is found in all cells.
Which organelles store food and other materials needed by the cell?
Vacuole.
Which organelles release chemicals that break down large particles into small ones?
Lysosomes
How does trophism work?
(Be able to explain how it works by looking at a drawing.)
The plant grows and bends towards the light.
What do all living things need?
All living things need energy in order to survive.
What is the difference between an autotroph and a heterotroph?
An autotroph produces its own food.
A heterotroph has to get its own food by killing, buying, or finding.
What are the cell structures responsible for producing food and storing materials?
Chloroplasts and vacuoles
What function does a chloroplast have?
It captures the sunlight's energy and uses it to produce food for the cell.
What function does a golgi body have?
It receives proteins and other newly formed materials from the ER, packages them, and then sends them to other parts of the cell
What function do lysosomes have?
They contain chemicals that break down food and other particles in the cell.
What is the endoplasmic reticulum have (ER)?
network of passageways that carry materials to all parts of the cell.
What function do mitochondria have?
Most of the cells energy is produced here. It converts food molecules into energy the cell can use.
What function does a ribosome have?
small structures that function as factories to produce proteins
What is cytoplasm?
A gel-like fluid where many different organelles are found.
Which characteristic common to living things is evidenced by the formation of the egg in the butterfly life cycle?
They produce new offspring.