Check Your Understanding Flashcards
A protein could be considered each of the following EXCEPT
An element
Molecules of “life” include all of the following:
proteins, lipids, water, nucleic acids, carbohydrates.
Which statement best describes metabolism in living things?
the process of taking in energy and using it to live.
The statement that best describes homeostasis
Maintenance if a dynamic state if equilibrium within the human body
What is an allele?
One of several possible variations of a gene?
Which I free following is required for information storage?
Deoxyribonucleic acid (DNA)
What are the 4 main features of life?
Metabolism, inheritance, evolution, diversity
What is meant by inheritance in biology?
The transfer of biological information from parent to offspring
What is meant by the statement “life is diverse?”
There are many different kinds of living organisms on Earth
The correct sequence of smallest to largest
Protons, atoms, molecules, cells
Why does sodium react so easily with chariot make sodium chloride?
Both atoms have incomplete outer orbitals and they complete other’s when they combine
What are proteins made of?
Amino acids
What are enzymes and what do they do?
Enzymes are PROTEINS, which lower the energy required for chemical reactions required to maintain living things
What is considered the fundamental unit of life
A cell
Darwin observed that pecked change through time. How does this happen?
Natural selection “choosing” organisms with the most advantageous traits to survive and reproduce
Darwin observed that pecked change through time. How does this happen?
Natural selection “choosing” organisms with the most advantageous traits to survive and reproduce
Who was Dr. Semmelweiss?
The doctor who figured out how to prevent childbed fever
Why is it important to repeat experiments or test hypothesis in different ways?
To make sure rhetorical predictions hold up in multiple situations
Which if the following assumptions of science is illustrated by this statement: “Bacterial infections be made much less of a problem when doctors began routinely practicing good hygiene”
Cause and effect
Certain mushrooms tend to appear suddenly in circles in lawns. What might be an appropriate scientific hypothesis about this?
Mis chromos mostly grow underground from a a central root structure
An example of a scientific statement
According to DNA comparisons, humans share a common ancestor with chimpanzees
In the scientific method, what is empirical evidence?
Information from direct observation or experimental results
What does strep throat and childbed fever have in common?
Both are caused by similar bacteria
The first step for directly linking a microbe to a specific disease according to Koch’s postulates is to
Obtain a sample of a blood or other body fluid from a diseased animal
What accurately describes how the cell theory applied to prokaryotic and eukaryotic cells?
Both prokaryotic and eukaryotic organisms are made of one or more cells
What is ribosome
A cellular structure that is composed of both RNA and protein
Do prokaryotic cells have nuclear envelope
Nope. But they still contain genetic material
In passive transport, the energy driving the movement of materials across a membrane is provided by
The concentration gradient across the membrane
What is the unifying theme of biology?
All forms of life on Earth are, ,related in some way!
