Answer Choices:
fibroblasts
osteoclasts
osteocytes
osteoblasts
Answer: osteoblasts
Question: Specialized structures within a cell that have a characteristic shape and perform specific functions in cellular growth, maintenance and reproduction are called
Answer Choices:
organelles.
cytoskeletons.
cytoplasm.
cytosol.
nuclei. s
Answer: organelles.
Question: Epigenetics refers to ____.
Answer: Above
Question: Substances, regardless of size, are able to move freely between compartments because water carries them along the osmotic gradient.
Answer: True
Question: Feeling the presence of a mosquito biting your arm is an example of
Answer Choices:
responsiveness.
growth.
reproduction.
differentiation.
movement.
Answer: responsiveness
Question: Match each organism with the proper number of cells.
Answer Choices:
Geranium: 16
Volvox: thousands
Eudorina: 32
Answer: s:
Volvox: thousands
Question: What compound would a cell lacking ribosomes be unable to make?
Answer Choices:
lipids
nucleotides
proteins
carbohydrates
phospholipids
Answer: proteins
Question: When a nicotinamide molecule picks up an extra electron, it becomes
Answer Choices:
oxidized.
reduced.
entropized.
radioactivated.
acidified.
Answer: reduced.
Question: Spaces between cells.
Answer: Interstitial
Question: This type of lipid is the body’s primary long-term energy storage molecule.
Answer Choices:
steroid
phospholipid
cholesterol
triglyceride
lipoprotein
Answer: triglyceride
Question: Chemical bonds formed by the sharing of electrons are called
Answer Choices:
ionic bonds.
hydrogen bonds.
covalent bonds.
isotopic bonds.
Answer: covalent bonds
Question: DNA replication occurs during:
Answer Choices:
prophase.
telophase.
metaphase.
None of the above
Answer: None of the above
Question: Genes are made up of ____.
Answer: DNA
Question: If you compare a cell with a manufacturing plant that exports goods, the cell’s _____ could be compared to the manufacturing plant’s shipping department.
Answer Choices:
nucleus
lysosome
Golgi apparatus
mitochondria
ribosome
Answer: Golgi apparatus
Question: Which one of the following bone cells would have the greatest number of lysosomes?
Answer Choices:
Osteoblasts
Osteocytes
Osteoclasts
Answer: Osteoclasts
Question: Chemical solutions that resist changes in pH are called _____________.
Answer Choices:
stabilizers
neutralizers
buffers
emulsifiers
Answer: buffers
Question: What biological substances can DNA be extracted from? Blood Semen Saliva All of the above
Answer: All of the above
Question: What are bone-dissolving cells called?
Answer Choices:
myoblasts
osteoclasts
osteocytes
osteoblasts
all of these choices
Answer: osteoclasts
Question: A substance that readily dissolves in water is
Answer Choices:
hydrophobic.
hydrostatic.
lipophilic.
hydrophilic.
hydrozone.
Answer: hydrozone
Question: What is the most abundant inorganic compound in the body?
Answer Choices:
water
oxygen gas
carbon dioxide
glucose
DNA
Answer: water
Question: Which of the following is NOT a characteristic of the cytosol?
Answer Choices:
primarily consists of water
cation of electron transport chain carrier proteins`
site of many important chemical reactions
often contains aggregates of triglycerides that form lipid droplets
contains the enzymes of glycolysis
Answer: cation of electron transport chain carrier proteins
Question: Which of the following membrane-enclosed organelles is the site of synthesis of membrane proteins and secretory proteins?
Answer Choices:
rough endoplasmic reticulum
smooth endoplasmic reticulum
nucleus
centrosome
Golgi complex
Answer: rough endoplasmic reticulum
Question: Groups of cells that are similar in structure and perform a common or related function form an _______.
Answer: organ system
Question: Which of the following is NOT commonly associated with Down Syndrome?
Answer: A brown sheaf
Question: What are the nonpolar parts of phospholipids?
Answer Choices:
phosphate-containing head groups
fatty acid tail groups
Both the head and tail groups are nonpolar.
Neither the head nor tail groups are nonpolar.
Answer: fatty acid tail groups