Answers |Actual Complete Exam |Already Graded A+
What is the cell theory? ✔Correct Answer-1) All living organisms are composed of 1 or more
cells
2) A cell is the minimal functioning unit of all living organisms
3) Cells only arise from division of pre-existing cells
The Cell ✔Correct Answer-- usually small (5-20cm)
Why are cells small? ✔Correct Answer-surface:volume ratio
What are the two types of cells? ✔Correct Answer-Prokaryotic and Eukaryotic
What are the characteristics of a prokaryote? ✔Correct Answer-- No membrane-bound
nucleus or organelles
- DNA is a single, circular molecule
- Simple
- Bacteria
What are the characteristics of a eukaryote? ✔Correct Answer-- Have membrane-bound
nucleus and organelles
- DNA in the form of chromosomes
What is the basic unit of life? ✔Correct Answer-the cell
who coined the name for the cell? ✔Correct Answer-Robert Hooke
List all the things Anton Van Leewenhoek discovered under the microscope he invented.
✔Correct Answer-1. sperm cells
2. pondwater-like organism
Who discovered the nucleus in plants and cytoplasmic streaming? ✔Correct Answer-Robert
Brown
What is another term for cytoplasmic streaming? ✔Correct Answer-Brownian Movement
(think 'Robert Brown', it was named after him)
Who demonstrated that both animal/plant cells were compatible? ✔Correct Answer-
Theodore Schwann and Mattias Schleiden
, What are the 3 main point of the cell theory? ✔Correct Answer-1. cells can only arise from
the division of pre-existing cells
2. cells are the basic unit of life
3. all living organisms are made of one or more cells
What is the largest example of a single cell we know of today? ✔Correct Answer-an ostrich
egg
What are the 2 types of cells? ✔Correct Answer-eukaryotic and prokaryotic
define karyon. ✔Correct Answer-nucleus; contains DNA and RNA and is responsible for
growth and repoduction
What are plasmids? ✔Correct Answer-small, circular, double-stranded DNA molecules distinct
from cells DNA; usually found in bacteria
T/F: A bacteria cell has a nucleus ✔Correct Answer-false
label the following structures/their functions of the bacteria cell: ✔Correct Answer-Pilli -
Flagella -
The sticky outer coating that protects a bacteria cell is called the...? ✔Correct Answer-capsule
What is a eukaryotic cell defined as? ✔Correct Answer-a single-celled organism with a clearly-
defined nucleus and membrane-bound organelles
What is a prokaryotic cell defined as? ✔Correct Answer-a single-celled organism, without a
clearly defined nucleus, and no membrane-bound organelles
What three organelles are not found in animal cells? ✔Correct Answer-cell wall, central
vacuole, and chlorplasts
What organelle is not found in plant cells? ✔Correct Answer-centrioles
lysosomes and peroxisomes are classified as...? ✔Correct Answer-singe-membrane
compartments
1:30 people of Jewish ancestry are carriers of a lysosome abnormality called? ✔Correct
Answer-Tay Sachs Disease
The liver contains numerous amounts of...? ✔Correct Answer-lysosomes
Organelles and their functions of the plant cell ✔Correct Answer-chlorplasts - made of stacks
of thylakoids (granum); the site for photosynthesis