Bio test 1
flagella and cilia
Cell surface projections for movement
Viruses differ from cells in which of the following ways?
Cells grow and require energy, but viruses do not Cells contain genetic information in the form of DNA, but viruses do not carry their own genetic information
Vacuole
Center of the plant cell that contain enzymes and pigments
Nucleus
Control center of the cell
Microtubules and microfilaments
Cytoskeleton in eukaryotes
Animals, plants, fungi, and protists have cells that are...
Eukaryotic
Cells that contains streaming cytoplasm...
Eukaryotic
Which cell type contains membrane-bound organelles?
Eukaryotic
The process by which cells expel, or secrete, large molecules is known as...
Exocytosis
Lipids
Fatty acids
simple sugars
Glucose, sucrose, fructose and many more
Proteins
Large molecules that help build and maintain body cells and tissues
semi-permeable membrane
Many large molecules do NOT move around freely
Fats
Molecules made from the combination of one molecule of glycerol with three fatty acids
Carbohydrates that contain only one sugar unit are called...
Monosaccharides
animal cells have
No large central vacuole, no chloroplasts, no cell well
If the small molecules are water molecules, then the movement from right to left across the membrane is...
Osmosis
Eukaryotic cells contain...
Paired chromosomes
All carbohydrates are made up of units of sugar also called...
Saccharides
Active transport
The movement of materials through a cell membrane using energy.
What would help you conclude that the cell shown here is a plant cell?
The presence of chloroplasts The large, central vacuole The rigid cell wall
Endoplasmic Reticulum (ER)
Transport of proteins
Fats is also known as...
Triglycerides
Plant cells have
cell walls, central vacuoles, chloroplast and plastids
ionic bonds
formed when one or more electrons are transferred from one atom to another
In passive diffusion, substances always move...
from an area of higher concentration to an area of lower concentration
Which answer correctly describes the lipid bilayer?
lipids are hydrophobic; phosphates are hydrophilic
organic molecules
molecules that contain carbon
Chloroplast
organelle where photosynthesis occurs
Two types are endocytosis are called...
phagocytosis pinocytosis
Differences between a plant and animal cell include:
plants cells have chloroplasts and animal cells don't plant cells have cell walls and animal cells don't
Mitochondria
powerhouse of the cell
The primary function of the Golgi apparatus is the...
processing of large molecules such as proteins and lipids
Movement of the small molecules from right to left across the membrane requires...
requires passive transport requires no energy
covalent bonds
sharing of electrons
passive transport
the movement of substances across a cell membrane without the use of energy by the cell
The antibiotic tetracycline interferes with the function of bacterial ribosomes. Because bacterial ribosomes are different from the ribosomes in human cells, taking tetracyline only stops...
the production of bacterial protein
When salt is poured on a slug, it dies because...
water moves out of the slug, causing dehydration
Cytoplasm
A jellylike fluid inside the cell in which the organelles are suspended
plasma membrane
A selectively-permeable phospholipid bilayer forming the boundary of the cells
Golgi apparatus
A system of membranes that modifies and packages proteins for export by the cell
Lysosomes
An organelle that breaks down enzymes
Cells that contain a nucleus...
Are eukaryotic
An example of a prokaryotic cell is...
Bacteria
Cells that have DNA as their genetic material include...
Both prokaryotic and eukaryotic cells
Elements of life
C, H, O, N
Movement of the small molecules from left to right across the membrane
Requires active transport Requires energy
Examples of a Eukaryotes is...
Plant cells, animal cells, fungi and protists
Proteins are ________ of amino acids
Polymers
complex carbohydrates are ____________ of the simple sugars
Polymers
The complex carbohydrates are often referred to as...
Polysaccharides
Smooth ER
Processing and transports lipids
Bacteria have cells that are...
Prokaryotics
Cells that do not have histone proteins associated with their DNA...
Prokaryotics
Prokaryotic cells contain...
Single chromosomes
Ribosomes
Site of protein synthesis Attached to rough ER
complex carbohydrates
Starches such as rice, bread, cereals, pasta, corn, or dry beans.
