Characteristics of Life
Put the following terms in order from smallest to largest.
( tissues / organism / organ / cell / organ system)
Cells - Tissues - Organ - Organ System - Organism
This cell has a nucleus. What type of cell am I?
Eukaryotic
Is water polar or nonpolar and WHY?
Polar - Hydrogen is positive and Oxygen is negative.
What part of the cell controls what can enter and exit the cell?
Cell (Plasma) Membrane
What body system pumps your blood throughout your body?
Circulatory
What Characteristic of Life is:
a bacteria dividing into 2 identical cells
Ability to Reproduce
This is the control center or "brain" of the cell.
What property of water is a water droplet?
Cohesion
What type of transport goes from low to high concentrations and uses energy? What is that energy molecule called?
Active; ATP
What body system senses stimuli and creates a response?
Nervous System
What Characteristic of Life is:
a green plant using sunlight to make sugar molecules
Uses Energy
What cell organelles are ONLY in plant cells? There are 3.
Chloroplast
Central Vacuole
Cell Wall
Water (oceans) helps to moderate the Earth's temperature so Earth does not get too hot or too cold. What property of water is this?
High Specific Heat
What do carbohydrates do in the cell membrane?
What does cholesterol do in the cell membrane?
What do proteins do in the cell membrane?
Cell Identification
Stability and Flexibility of the Membrane
Transport of Items in and out of the Cell
What body system uses oxygen gas to create energy for your cells?
Respiratory System
Give an example of a unicellular organism AND a multicellular organism.
Uni - bacteria
Multi - any plant or animal
When does a cell replicate its DNA?
During the S phase of interphase (before it divides).
Why is water the universal solvent?
Water can dissolve many substances due to it being a polar molecule.
What is the differences between simple and facilitated diffusion.
Facilitated diffusion uses a protein to move larger molecules through the cell membrane.
What body system produces urine when filtering toxic wastes?
Excretory System
Why are viruses not alive?
Not made of cells.
Need a host to do most characteristics of life.
Put the phases of the cell cycle in order.
Interphase - Prophase - Metaphase - Anaphase - Telophase - Cytokinesis
What property of water allows plants to get water from their roots to their flowers?
Capillary Action
Hypotonic - water moves in and cell grows
Isotonic - water moves in and out and the cell stays the same
Hypertonic - water moves out and cell shrinks
What is homeostasis? Give one example of how your body maintains homeostasis.
Internal Balance
Shivering or Sweating to maintain a constant temperature.