Chapter 1 - Intro to Biology
Biology is the study of what?
Life
What three particles make up an atom?
Protons, neutrons, and electrons
A cell that does not have a nucleus is an example of this type of cell
prokaryotic cell
The movement of molecules from high concentration to low concentration is known as
diffusion
chloroplast
Define homeostasis.
Keeping internal conditions stable
The molecule that an enzyme acts on is called a...
substrate
What organelle is responsible for producing energy in both plant and animal cells?
the mitochondria
What is the difference between passive and active transport?
Passive = no energy
Active = require energy
What organelle does cellular respiration occur in?
the mitochondria
Define dependent variable.
The variable that you measure in an experiment
Atoms in a covalent bond ____(1)_____ electrons, and atoms in an ionic bond _____(2)_____ electrons.
Fill in the blanks with the words "share" or "exchange"
1 - share
2 - exchange
Why do plant cells have a large central vacuole?
To store water and other nutrients
If a cell is placed in a isotonic solution, what will happen to it?
It will stay the same water
Please write the equation for photosynthesis.
sunlight + 6CO2 + 6H20 --> C6H12O6 + 6O2
What is the smallest unit of living things?
Cells
Simple sugars are the monomer (building block) of what biomolecule?
carbohydrates
What structure is the outermost boundary of a plant cell? What about an animal cell?
Plant: cell wall
animal cell: cell membrane
Name the molecule that makes up the cell membrane
phospholipid
Please write the equation for cellular respiration.
C6H12O6 + 6O2 --> 6CO2 + 6H20 + ATP (energy)
Hypotheses are often made before an experiment. Give an example of a hypothesis related to fertilizer and plant growth.
IF I give a plant fertilizer, THEN it will grow more.
Please labeled the following pH values as being acidic, basic, or neutral.
3... 7... and 14
3 = acidic
7 = neutral
8 = basic
What major tool/device helped lead to the discovery of cells?
the microscope
Name an example of active transport
endocytosis or exocytosis
Name the pigment that absorbs light in photosynthesis.
Chlorophyll