WorksheetsBiology 1230 Exam 4
Total questions: 27
Worksheet time: 14mins
The tissue marked with the X is derived from the...
mesoderm
ectoderm
endoderm
Mesoderm is the middle layer, endoderm is the internal layer, ectoderm is the outer layer
true
false
The synthesis of _?_ is catalyzed by rubisco
PGA
gum
G3P
RuBP
Signal transduction...
is an extracellular process
occurs in bacteria
is found only in eukaryotes
does not happen without ATP
Signal receptors can be in the nucleus, in the cytosol, in the plasma membrane, and intracellular
true
false
This embryo is a...
blastula
morula
gastrula
This is an example of a...
blastula
morula
zygote
egg sac
Cyclic electron transport produces...
NADPH
NAD
ATP
oxygen
Which of these has the longest wavelength?
red
green
yellow
violet
In reptiles, birds, and mammals, which membrane contains the fluid that surrounds the developing embryo?
yolk sac
amnion
chorion
Before a mammalian sperm can complete fertilization, it must undergo a maturation process in the female reproductive tract known as...
capacitation
determination
the cortical reaction
spermatogenesis
This figure illustrates...
proton pump
signaling amplification
ions
ERK pathway
The germ layers (ectoderm, endoderm, and mesoderm) are formed during the process of...
fertilization
cleavage
gastrulation
birth
A plot of wavelength vs rate of photosynthesis is a(n)...
action spectrum
absorption spectrum
chlorophyll spectrum
light spectrum
The somatic cells of a multicellular animal all have the same genetic information. This situation is termed...
nuclear equivalence
cell determination
holoblastic
polyspermy
Which of these are products of the light-dependent reactions of photosynthesis?
I. oxygen; II. NADP+; III. NADPH; IV. CO2; V. ATP
I, II, and V
II, III, and IV
I, III, and V
Which molecule in this illustration is the second messenger?
cAMP
ATP
GTP
none
Name the space indicated with the X.
intermembrane space
stroma
lumen
Acetylcholine binds to...
an ion channel-linked receptor
a second messenger
tyrosine kinase
Which of these is NOT a product of carbon fixation?
NADP+
Pi
glucose
ADP
oxygen
During an acrosome reaction, the acrosome...
secretes calcium ions, which cause the sperm to fuse with the egg.
releases enzymes that digest the outer layer of the egg.
detaches, allowing the sperm to penetrate the egg.
provides energy for the initial development of the fertilized egg.
Which of the following statements about paracrine regulation is true?
The released hormones only inhibit the cells that secreted them.
The released hormones are secreted by the organism and bind to cells in other individuals of the same species.
The released hormones enter the bloodstream and are carried to receptors on distant tissues.
The released hormones act on nearby target cells.
Which of these directly regulates gene expression?
a transcription factor
a GABA receptor
a G-protein
an ion channel
Photosystem I provides the energy to synthesize...
NADPH
NADH
rubisco
pyruvate
Carbon fixation takes place in the stroma
true
false
Hormones...
can carry signals to distant target tissues
involve electrical signals between cells
function as enzymes
_?_ is the direct result of cell determination.
pattern formation
cell differentiation
gastrulation
