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BSCI 201 Exam 1 Spring Sem 2024 Questions With Complete Solutions!!
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BSCI 201 Exam 1 Spring Sem 2024 Questions With Complete Solutions!!
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Name: Score:213 Multiple choice questions
Term 1 of 213
What are polysaccharides?
storage form of glucose, composed of long chains of glucose, known as starch in plants
and GLYCOGEN in animal cells
nucleotides; each is composed of deoxyribose or ribose sugar, nitrogen base (A,T,C,G,U),
and a phosphate group
regulate acid-base balance, chemicals that resist abrupt changes in pH by binding H+ when
the pH falls and by releasing H+ when the pH rises
single covalent bonds exist between all the carbons in the chain, solid at room
temperature, animal sources ex: butter
Term 2 of 213
what is the function of the smooth ER in the cell?
lipid/drug metabolism
Filtration and diffusion
"power plants", synthesizes ATP
premRNA still has introns, mRNA does not have introns, only exons
Term 3 of 213
describe cytokinesis
longest phase; protein synthesis; cell growth
3-base sequence in mRNA
Cytoplasmic division
electrons are shared between atoms to attain stability (strongest bond)
,Term 4 of 213
Cells that synthesize steroid hormones have to use receptor mediated endocytosis. T or F
water
False
Smooth ER
True
Term 5 of 213
Essential amino acids are amino acids that could be synthesized by cells in the body. T or F?
False
Facilitated diffusion
-Plasma membrane
-Nucleus
-cytoplasm
Perioxisomes and mitochondria
Definition 6 of 213
intervertebral discs
tubular multicellular exocrine glands
Fibrocartilage location
describe interphase G1 phase
describe metaphase
,Definition 7 of 213
- Nonkeratinized stratified squamous epithelial tissue over areolar connective tissue
- simple columnar epithelial tissue over areolar connective tissue
Describe the tight junction
describe the transverse plane
The mucus membrane can be composed of
describe interphase G2 phase
Term 8 of 213
Describe two structures that will be prominent in a protein-secreting cell?
simplest level, atoms combine to form molecules
Perioxisomes and mitochondria
ribosomes and golgi apparatus
Endocrine glands and exocrine glands
Term 9 of 213
Name the 2 major processes of membrane transport and their differences
Active (requires energy) and passive (no energy required)
primary structure, secondary structure, tertiary structure, quarternary structure
crosses the entire membrane and protrudes on both sides
aspirin inhibits cyclooxygenase (cox) hence prostaglandins are not synthesized and thus
hemostasis results and blood clot formation does not occur
, Definition 10 of 213
water
Most of the embryonic skeleton is composed of hyaline Cartilage. T or F?
Functional ribosomes are synthesized by nucleoli. T or F?
Fill in the correct anatomical term:
The lungs are ____________ to the heart
Give an example of a polar covalent molecule
Term 11 of 213
Explain why a phagocyte will have several nucleoli in its nucleus
Extracellular matrix is made of ground substance and fibers, the three types of fibers are
collagen, elastic and reticular fibers
Nuclei is the site for assembling ribosomal subunits which synthesize lysozymes which are
needed for phagocytosis
aspirin inhibits cyclooxygenase (cox) hence prostaglandins are not synthesized and thus
hemostasis results and blood clot formation does not occur
("traffic director")- structurally modifies proteins and sends them off to their correct
location
Term 12 of 213
what is the function of lysosomes in the cell?
"demolition crew", digests nonuseful cells or wastes to maintain proper function of organs
in the body
Simple squamous epithelial cells of mesodermal origin
Location: lining serous cavities and internal organs
neutralize harmful free radicals
- gives cell membrane structural support
- contains fluid inside cell membrane
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