Chemicals of Life
These are the 4 chemicals of life.
carbohydrates
lipids
proteins
nucleic acids
This type of cell can be compared to large, multi-roomed house (as opposed to a one-room cabin).
What is a eukaryotic cell?
This is the part of a plant that prevents it from washing away during a rainstorm.
What are the roots?
This human tissue is responsible for conducting signals to and from all parts of the body.
What is nerve tissue?
This is an educated guess that attempts to explain an observation or answer a question.
What is a hypothesis?
These chemicals of life are made up of simple sugars.
What are carbohydrates?
This is one of the 3 main parts of an eukaryotic cell, in addition to the nucleus and the cytoplasm.
What is the cell membrane?
Note: A cell membrane is similar to a tennis net, only allowing some substances in and out.
This is the part of a plant where photosynthesis is undergone as well as being the support for leaves.
What is the stem?
This is a type of tissue within the human body in addition to muscle, nerve, and epithelial tissues.
What is connective tissue?
Note: Connective tissue provides movement within the body.
In this type of experiment, neither the experimenter, nor the participants know the object’s identities in the setup.
What is a double-blind experiment?
These chemicals of life are complex molecules and are made up of amino acids.
What are proteins?
This is the specific reason that viruses don’t meet the criteria for living (biological) things.
What is the fact that viruses are not able to reproduce themselves?
Note: Since viruses aren’t living, they can’t be “killed” with antibiotics, which is why colds can’t be cured with antibiotics.
This characteristic is used by botanists to help classify plants, in addition to the characteristics of leaf shape and margin.
What is vein arrangement?
This is the human body system that provides support, as well as areas for muscles to attach.
What is the skeletal system?
Note: Within the animal kingdom, animals are divided between vertebrates and invertebrates.
This type of eclipse occurs when Earth is between the sun and Moon.
What is a lunar eclipse?
These chemicals of life are the most complex and are involved in the creation, repair, and reproduction of proteins.
What are nucleic acids?
This device allows scientists to view viruses, which are much smaller than bacteria or other cells.
What is an electron microscope?
This is the type of plant tissue botanists look for to be able to divide plants into the first 2 main “branches.”
What is vascular tissue?
The largest arthropods live here because it helps with the weight of their very large exoskeleton.
What is the ocean?
This is the measure of how much water vapor is in the air.
What is humidity?