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BIO101 HUMAN A&P

BIO101 Exam 2 Ch 3-5 study

QuestionAnswer
BIO101 Exam 2 Ch 3-5 study
THE 3 MAJOR PARTS OF A CELL ARE: a. the nucleus, nucleolus, and nuclear envelope b. the nucleus, cytoplasm, and cell membrane c. microtubules, ribosomes, and centrosomes d. the endoplasmic reticulum, Golgi apparatus, and vesicles the nucleus, cytoplasm, and cell membrane
STAGES OF THE CELL CYCLE UNFOLD IN THE FOLLOWING ORDER: a. interphase, differentiation, cytoplasmic division, mitosis b. mitosis, interphase, cytoplasmic division, differentiation c. interphase, mitosis, cytoplasmic division, differentiation interphase, mitosis, cytoplasmic division, differentiation
CHROMOSOMES DUPLICATE DURING: a. prophase b. interphase c. telophase d. metaphase interphase
STRUCTURAL ORGANIZATION OF CELL MEMBRANE? a. 3 layers; lipid>in, protein>mid, carbs>out. b. solid rigid layer of phospholipid w loosely bound protein molecules. c. bilayer of phospholipid molecules > protein molecules are embedded & can move. bilayer of phospholipid molecules > protein molecules are embedded & can move.
IF A RED BLOOD CELL IS PLACED IN HYPOTONIC SOLUTION: a. cell will shrink b. cell will remain same size and shape c. cell will swell and may eventually burst d. only permeable substances will leave; but concentrations in the cell do not change cell will swell and may eventually burst
OSMOSIS IS THE MOVEMENT OF a. H2O through selectively permeable membrane to solution containing higher concentration of impermeant solute. b. H2O through selectively permeable membrane to solution containing lower concentration of impermeant solute. water through selectively permeable membrane to solution containing HIGHER concentration of impermeant solute.
IF CELLS PLACED IN A SOLUTION SHRIVEL UP, THE SOLUTION IS ___. a. isotonic b. hypertonic c. hypotonic d. isertonic hypertonic
THE MAJOR COMPONENTS OF THE CELL MEMBRANE ARE a. lipids and proteins b. lipids and carbohydrates c. carbohydrates and polysaccharides d. proteins and carbohydrates lipids and proteins
A HYPOTONIC SOLUTION a. has a lower concentration (#) of impermeant solute than do the cells in the solution. b. causes cells to shrink c. has a higher osmotic pressure than cells in the solution d. would cause cells in solution to lose water has a lower concentration (#) of impermeant solute than do the cells in the solution.
AN ISOTONIC SOLUTION a. has the same osmotic pressure as the cells in the solution b. has more water entering than leaving a cell c. has a greater concentration of impermeant solute than a cell d. causes a cell to shrink has the same osmotic pressure as the cells in the solution
THE NUCLEOLUS CONTAINS a. DNA only b. DNA and protein c. RNA and protein d. RNA only RNA and protein
If concentration of glucose in water, outside cell is higher than concentration inside, a. water will enter cell by osmosis b. water will leave cell by osmosis c. glucose will enter cell by osmosis d. glucose will leave cell by osmosis water will leave cell by osmosis
CHAPTER 4------------------------------------------------------------- ------------------------------------------------------------------------------
THE 2 STRANDS OF A DNA MOLECULE HAVE OPPOSITE ORIENTATION TRUE or FALSE TRUE
METABOLISM REFERS TO a. reactions in the body that break down proteins/nucleic acids b. breakdown of glucose molecules to release energy c. all the chemical reactions in a cell d. reactions in the body that synthesize proteins/nucleic acids. all the chemical reactions in a cell
IF 1 STRAND OF DNA HAS THE SEQUENCE TCAGGCTATTCCCG, THE COMPLEMENTARY SEQUENCE OF THE OTHER STRAND IS: a. UCAGGCUAUUCCCG b. AGUCCGAUAAGGC c. TCAGGCTATTCCCG d. AGTCCGATAAGGGC AGTCCGATAAGGGC use base-pairing rules: A ↔ T and C ↔ G
A MOLECULE THAT IS A STORAGE FORM OF CARBOHYDRATE IS a. glycogen b. an amino acid c. glycerol d. DNA glycogen
THE CODON THAT WILL SIGNAL WHERE TO BEGIN MAKING A POLYPEPTIDE IS ___. a. AGG b. TAC c. TTA d. AUG AUG (AUG is the start codon in mRNA; It codes for the amino acid methionine)
ATP IS IMPORTANT TO CELLULAR PROCESSES BECAUSE IT a. provides energy for cellular work when the terminal, high-energy bond is broken b. is a by-product of all catabolic reactions c. is formed by muscles contracting or whenever cellular work occurs provides energy for cellular work when the terminal, high-energy bond is broken
THE TERM CATABOLISM REFERS TO a. chemical reactions that acquire energy b. chemical reactions that release energy c. the formation of genetic material d. synthesis of large molecules chemical reactions that release energy
TRANSCRIPTION YIELDS PROTEIN AND TRANSLATION PRODUCES RNA. TRUE or FALSE FALSE
THE TERM ANABOLIC METABOLISM REFERS TO a. biochemical reactions that break down compounds b. all processes required to maintain life c. biochemical reactions that release energy from nutrients d. biochemical reactions that synthesize compounds biochemical reactions that synthesize compounds
A PEPTIDE BOND FORMS BETWEEN a. a tRNA and an mRNA b. an mRNA and an rRNA c. adjacent amino acids d. a gene and a protein adjacent amino acids
WHICH OF THE NITROGENOUS BASES IS PART OF DNA BUT NOT RNA? a. Thymine b. Uracil c. Cytosine d. Guanine Thymine
IN WHAT MOLECULES ARE CODONS FOUND? a. tRNA b. Proteins c. rRNA d. mRNA mRNA
A DNA SEQUENCE OF AACGGTGCACCACGG ENCODES AN mRNA SEQUENCE OF: a. UUGCCACGUGGUGCC. b. AACGGUGCACCACGG c. AACGGTGCACCACGG d. UUCGGAGCUCCUCGG UUGCCACGUGGUGCC.
A MOLECULE THAT IS A STORAGE FORM OF CARBOHYDRATE IS: a. an amino acid b. glycerol c. glycogen d. DNA glycogen
WHICH STAGES HAVE DOUBLE THE AMOUNT OF CHROMOSOMAL DNA COMPARED TO STAGE G1? a. Apoptosis b. G2 c. Metaphase d. Prophase Metaphase
CHAPTER 5 --------------------------------------------------------------- ------------------------------------------------------------------------------
Histology is the study of: a. molecules b. organ function c. tissues d. cells tissues
A skeletal muscle fiber contains many nuclei. TRUE or FALSE TRUE
The muscle tissue that can be consciously controlled is: a. intestinal muscle tissue b. cardiac muscle tissue c. smooth muscle tissue d. skeletal muscle tissue skeletal muscle tissue
The type of muscle tissue in blood vessels is: a. voluntary muscle tissue b. skeletal muscle tissue c. smooth muscle tissue d. cardiac muscle tissue smooth muscle tissue
Cardiac muscle is found in the wall of the: a. heart b. blood vessels c. intestine d. stomach heart
Functions of neuroglia: a. guide neurons>muscles; pass neurotransmitters>muscle cells. b. support/bind nervous tissue; provide nutrients/growth factors to neurons by connecting them to blood vessels support/bind nervous tissue; provide nutrients/growth factors to neurons by connecting them to blood vessels
Involuntary muscle tissues: a. smooth muscle tissue, skeletal muscle tissue, & cardiac muscle tissue b. cardiac muscle tissue & skeletal muscle tissue c. smooth muscle tissue & cardiac muscle tissue d. smooth muscle tissue & skeletal muscle tissue smooth muscle tissue & cardiac muscle tissue
Which is NOT one of the four basic types of body tissue? a. eye tissue b. epithelial tissue c. connective tissue d. muscle tissue eye tissue
Smooth muscle is found in the wall of the a. bone b. heart c. liver d. stomach stomach
A ____ membrane lines tubes and cavities that open to the outside of the body. a. synovial b. serous c. mucous d. cutaneous mucous
The arrector pili muscle is made of ____ tissue. a. smooth b. skeletal c. idioclastic d. cardiac e. teraformic smooth
What type of muscle cell(s) have more than one nucleus? a. smooth muscle and skeletal muscle cells. b. cardiac muscle and smooth muscle cells. c. smooth muscle cells only. d. skeletal muscle cells only. skeletal muscle cells only.
Created by: C to the C
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