普通生物學一上107期中考古題

36問 • 2年前

楊雅筑

通報

問題一覧

which statement about energy is true

（B）kinetic energy is related to motion

a chemical reaction with a positive g is

（A）endergonic

a noncompetitive inhibitor inhibit the binding of substrate to an enzyme by

（D）change the shape of the active site

which of the following is an example of cooperativity

（C）a molecular binding at one unit of a tetramer, allowing faster binding at each of the other three

in a chemical reaction

（B）transition state have higher free energy than either the reactants or the products

the final products of glycolysis are (1)ATP (2)CO2 (3)pyruvate (4)NAD+ (5)NADH

135

the citric acid cycle

（C）produces both NADH and FADH2

substrate-level phosphorylation

use ATP synthase to produce ATP

the molecule formula for glucose is C6H12O6. what would be the molecular formula for a molecule made by linking three glucose molecules together by dehydration reactions

C18H32O16

what is the major structure difference between starch and glycogen

（D）the amount of branching that occurs in the molecules

phospholipids and triglycerides both

（C）have a glycerol backbone

steroids are considered to be lipids because they

are not soluble in water

what is the term used for a protein molecule that assists in the proper folding of other poteins

chaperonin

all of the following are part of a prokaryote cell except

an endomembrane reticulum

the liver is involved in detoxification of many poisons and drugs. which of the following structure is primarily involved in this process and, therefore, abundant in living ER

smooth ER

what is the most likely pathway taken by synthesized protein that will be secreted by a cell

ER→golgi→vesicle that fuse with plasma membrane

cells require which of the following to form cilia or flagella

tubulin

plasmodesmata in plant cells are most similar in function to which of the following structures in animal cells

gap junctions

the toxin of vibrio cholerae causes profuse diarrhea because it

modifies a G protein involved in regulating salt and water secretion

which of the following is a correct association

GTPase activity and hydrolysis of GTP to GDP

scaffolding proteins are

large proteins to which several array proteins attach to facilitate cascade effect

the membrane of winter wheat are able to remain fluid when it is extremely cold is by

increasing the percentage of unsaturated phospholipids in the membrane

singer and nicholson fluid mosaic model of membrane proposed that membrane

consist of proteins embedded in fluid phospholipid bilayer

which of the following process include all others

passive transportation

which of the following membrane activities requires energy from ATP

movement of Na+ ions from a lower concentration in a mammalian cell to a higher concentration in the extracellular fluid

lipid-soluble signaling molecules, such as testosterone, cross the membranes of all cells but affect only target cells because

（B）intracellular receptors are present only in target cells

which of the following would be inhibited by a drug that specifically blocks the addition of phosphate group to proteins

receptor tynosine activity

which of the following is the best explanation for the inability of a specific animal cell to reduce the Ca2+ concentration in its cytosol compared with eyton cellular fluid

insufficient ATP levels in cytosol

G1 is associated with which of the following cellular events

normal growth and cell function

what is the name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle

centrosome

the mitotic spindle plays a critical role in which of the following processes

separation of sister chromatids

metaphase is characterized by

alignment of chromosomes on the equator of cells

a cleavage furrow is associated with which of the following cellular events

a groove in the plasma membrane between daughter nuclei

what is the character of cyclin-dependent kinase (cdk)

（D）cdk attaches phosphates to proteins

which of the following statements defines a genome

the complete set of an organism's genes and other DNA sequences

which of the following statements describes the chromosomal makeup of each daughter cell after telophase of meiosis I

the cells are haploid, and the chromosomes are each composed of two chromatids

大體解剖學單字1

楊雅筑 · 100問 · 2年前