Biology
Cell biology, genetics, ecology, and life science fundamentals.
-
which component of the cell theory argues against life on earth evolvin…
C. All cells come from preexisting cells.
-
fill in the blank question the is a structure found in all cells and is…
ribosome
-
what type of membrane protein is involved in creating anchoring junctio…
adhesion proteins
-
eukaryotic cells are 10-100 times the size of prokaryotic cells. how do…
Organelles keep reactions compartmentalized and concentrated.
-
fill in the blank question the bacterial cytoplasmic structures that fu…
inclusion bodies (or bacterial microcompartments, but the most common answer here is "inclusion bodies")
-
in a human, the intestines need to form a barrier to prevent bacteria a…
tight junction
-
select all that apply which two of the following describes typical plas…
A. double - stranded, C. composed of DNA
-
you discover a new life form, and study it under an electron microscope…
A. Bacteria.
-
multiple choice question in this image, magnetosomes are indicated by t…
A. A
-
multiple choice question the irregularly shaped region of a bacterial c…
D. nucleoid
-
what does a pine tree, an octopus, and a bacterium have in common at th…
cellular composition
-
the phospholipid bilayer of membranes allows lipids and small, nonpolar…
hydrophobic and selectively permeable.
-
multiple choice question organized protein complexes within a cell that…
B. biomolecular condensates
-
what is the advantage of a mature red blood cell having a flattened sha…
Maximizes the relative surface area to exchange gasses.
-
question 37 1 point products of the rough and smooth endoplasmic reticu…
Golgi apparatus; vesicles
-
select all that apply certain enzymatic reactions are constrained in mi…
- the reaction requires a different pH that can be maintained in a microcompartment - a reactant is a gas that could easily pass through a membrane - the reaction produces a toxic…
-
what type of microscope would you use if you wanted to examine the ridg…
light microscope
-
which of the following bacterial structures is the site of protein synt…
B. Ribosome
-
multiple choice question polyphosphate granules are used to store _____…
C. phosphate
-
tay - sachs disease is a neurological disorder in which a defective enz…
cellular membranes
-
in order for a milk protein to be secreted, it must be moved between or…
A. in spheres of lipid bilayer called vesicles.
-
select all that apply which two of the following are functions of bacte…
- Promote energy conservation - Storage sites
-
multiple choice question the magnetosomes illustrated here are aligned …
A. cytoskeletal proteins
-
7. what would happen to your sentence if you mutated or changed one let…
Mutating one DNA "letter" (a point mutation) can have several outcomes: 1. **Silent mutation:** No change to the resulting protein, because the altered codon still codes for the s…
-
multiple choice question small membrane - bound particles that form whe…
D. extracellular vesicles
-
to describe the golgi apparatus, it is not an organelle. a processing c…
studded with ribosomes.
-
multiple choice question biomolecular condensates assemble within the c…
C. liquid - liquid phase separation
-
what is the role of microfilaments in eukaryotic cells? component of th…
All answers are correct.
-
multiple choice question aggregates of materials, either organic or ino…
C. inclusions
-
which pair of membrane junctions have the most analogous (similar) func…
plasmodesmata, gap junction
-
enzymes that break down molecules in a cell are typically found in whic…
lysosomes
-
fill in the blank question a chemical reaction in a cell that generates…
compartment (or organelle, with "compartment" being the more general and common answer for this blank)
-
select all that apply bacterial internal membranous structures may appe…
A. flattened vesicles, D. spherical vesicles, E. tubular membranes
-
the most prominent organelle in most eukaryotic cells, that contains mo…
nucleus.
-
multiple choice question polyphosphate granules store the phosphate nee…
A. DNA and RNA
-
which of the following are the primary components of the cell membrane …
phospholipid molecules.
-
multiple choice question capsules are typically composed of ______. sug…
A. sugars
-
the scientist(s) given credit for first using the term \cell\ to descri…
Robert Hooke.
-
fill in the blank question the bacterial cytoplasmic structures that fu…
inclusion bodies (or inclusions)
-
which three of the following are functions of the bacterial cytoskeleto…
- Participate in cell division - Determine cell shape - Localize specific proteins within the cell
-
the main organelles and structures involved with milk production and se…
nucleus, nuclear pore, rough ER, smooth ER, transport vesicle, Golgi apparatus, and vesicle for secretion.
-
which of the following is not a characteristic of an animal cell membra…
It has a rigid structure.
-
penicillin halts bacterial infections by stimulating a persons immune s…
by interfering with the construction of the cell wall.
-
the function of the nucleolus is protein synthesis. photosynthesis. tra…
assembly of components of ribosomes.
-
small membrane - bound particles that form when a portion of a cell env…
# Brief Explanations: In cell biology (a subfield of Biology, which is part of Natural Science), when a portion of a cell envelope buds out and pinches off to form small membrane …
-
multiple choice question bacterial inclusions are ______. invaginations…
D. aggregates of materials within the cell (assuming the options are labeled A to D in order, with the last option being D)
-
a phospholipid molecule has a hydrophilic head that is repelled by wate…
has a hydrophilic head that is attracted to water.
-
an organelle found in plant cells and some members of the kingdom proti…
a chloroplast.
-
multiple choice question which term includes the plasma membrane and ev…
C. Protoplast (Note: The original options had circles, but assuming the options are labeled as A. Cytoplasm, B. Envelope, C. Protoplast, D. Cytosol, the correct one is C. Protopla…
-
chloroplasts are known for all of the following except being glucose fa…
B. responsible for cellular respiration.
-
multiple choice question bacterial internal membrane structures are oft…
B. plasma membrane
-
multiple choice question the bacterial cell surface layer illustrated h…
A. S - layer
-
which of the following are cellular digestion centers? peroxisomes and …
lysosomes and peroxisomes
-
a cell membrane is not a fluid structure. a rigid structure. a mosaic s…
a rigid structure.
-
multiple choice question capsules are typically ______. - well organize…
D. only visible with an electron microscope
-
select all that apply bacterial cytoskeleton proteins share ancestry wi…
A. tubulin, B. actin
-
the theory of endosymbiosis is based on the knowledge that ribosomes ar…
the knowledge that chloroplasts and mitochondria resemble bacteria.
-
the cell wall of bacteria helps prevent the cell from bursting. protect…
All answers are correct.
-
match the following extracellular layers of a bacterial cell according …
- Capsule $\longleftrightarrow$ organized sugar layer - Slime layer $\longleftrightarrow$ disorganized sugar layer - S - layer $\longleftrightarrow$ organized protein layer
-
flagella can be found on prokaryotic cells. found on human sperm. used …
All of the answer choices are correct.
-
3. compare: what structures are present in a bacterial cell, but not in…
Structures like the peptidoglycan - based cell wall (in most bacteria), plasmids, and the nucleoid region (instead of a true nucleus) are present in bacterial cells but not in pla…
-
multiple choice question small membrane - bound particles that form whe…
D. extracellular vesicles
-
in most mammals, the dna found in mitochondria is inherited from the fa…
the mother only.
-
1. what is the name of the process where you are copying the dna messag…
1. Transcription 2. In the nucleus (of eukaryotic cells; in the cytoplasm of prokaryotic cells) 3. Codons 4. Three differences: - DNA has deoxyribose sugar, RNA has ribose sugar -…
-
3. fill in: name the organelle or organelles that perform each of the f…
A. Chloroplast B. Cell Wall, Vacuole, Cytoskeleton (most relevant for plant cell support: Cell Wall, Vacuole) C. Vacuole (or Chromoplast for pigments, but Vacuole is general for s…
-
the scientist (scientists) given credit for adding the third tenet (all…
C. Rudolf Virchow.
-
in plant cells, the central vacuole produces protein. degrades molecule…
degrades molecules and organelles and maintains water pressure.
-
a eukaryotic cell has a cell wall with peptidoglycan. is usually smalle…
has membrane-bound organelles.
-
mitochondria are known for all of the following except that they do not…
E. carry out photosynthesis.
-
all ______ contain a cell membrane. enter answer
cells
-
which of the following describes the protoplast? the plasma membrane an…
C. The plasma membrane and all structures within it. (Assuming the third option is labeled as C; if the original options had different labels, adjust accordingly. But based on the…
-
the cell theory states that all of the ______ on earth are made of one …
living organisms
-
the s-layer that is found on certain bacterial cells is composed of ___…
B. protein or glycoprotein (assuming the options are labeled as A. lipid or glycolipid, B. protein or glycoprotein, C. peptidoglycan, D. lipopolysaccharide)
-
the surface of a nucleus is bounded by a specialized double membrane ca…
nuclear envelope (or nuclear membrane)
-
multiple choice question which characteristic makes mycoplasmas pleiomo…
B. They lack a cell wall
-
as cells __________ in size, cell volume increases more rapidly than ce…
increase
-
multiple choice question capsules are typically composed of ______. nuc…
B. sugars (Note: Assuming the options are labeled with letters, if original labels were different, adjust. But based on content, the correct option is the one with "sugars" as bac…
-
the __________ of a eukaryotic cell is the organelle that houses the ge…
nucleus
-
how do skin cancer cells typically differ from normal skin cells? selec…
D. Skin cancer cells do not respond to the signals to control cell division. E. Cancer cells spend less time in interphase and more time in mitosis compared to typical cells.
-
one difference between prokaryotes and eukaryotes is that the cytoplams…
organelles
-
“texas was the last frontier of *chattel slavery in the united states. …
X Southern Revival
-
the processing center of eukaryotic cells, called the _____, collects, …
Golgi apparatus (or Golgi body)
-
fill in the blank question the term that describes a cell bursting open…
lysis
-
in addition to a plasma membrane, plant cells have ________ which prote…
a cell wall
-
match the following bacterial cell layers according to their relationsh…
- Capsule $\longleftrightarrow$ well attached - Slime layer $\longleftrightarrow$ easily detaches - S - layer $\longleftrightarrow$ aids in cellular shape
-
even though they were similarly created by endosymbiosis, _______ use c…
mitochondria
-
multiple choice question what is the role of porin proteins? to facilit…
To facilitate the transport of compounds like glucose across the outer membrane.
-
multiple select question select all that apply which of the following c…
- diagnostic X-rays performed in the year prior to fertilization - high lead exposure - advanced paternal age
-
historian c a significant number of tejanos took an active role in the …
X. Tejano School ### Question 6
-
fill in the blank question the component of lps can act as a toxin to p…
lipid A
-
multiple choice question which type of care involves a defined schedule…
O prenatal care
-
multiple select question select all that apply which of the following c…
☑ advanced paternal age ☑ high lead exposure ☑ diagnostic X-rays performed in the year prior to fertilization
-
select all that apply which two of the following types of proteins are …
enzymes that synthesize peptidoglycan, transport proteins
-
multiple choice question mycoplasmas are different from other bacteria …
B. lack a cell wall
-
multiple choice question which component of lps generates an antibody r…
C. O antigen
-
select all that apply which four of the following are functions of lipo…
- Protects from environmental toxins (and immunological factors) - Stabilizes the outer membrane - Makes a permeability barrier - Contributes to the negative charge of the cell
-
in gram-negative bacteria, transport across the outer membrane is made …
A. porin proteins
-
multiple choice question lipid a of lps is composed of ______. ○ glycin…
B. two glucosamine sugar derivatives (assuming the second option is labeled B; if the original numbering is different, adjust the label but the text remains "two glucosamine sugar…
-
multiple choice question which component of lps can act as a toxin in a…
B. Lipid A
-
multiple choice question the component of lipopolysaccharide indicated …
the O antigen