An organism with chloroplasts in its cells is probably....
a- a heterotroph
b- an autotroph
c- a herbivore
d- a primary consumer
(S1, p218-228)
b-
... [Show More] an autotroph
organisms that have chloroplasts in their cells carry on photosynthesis and are therefore autotrophs
- autotrophs make their own food
(Q1)
What property of water allows someone to fill a glass slightly above the rim with out the water flowing over?
a- specific gravity
b- capillarity
c- opacity
d- surface tension
(S1, p218-228)
d- surface tension
(Q2)
The spaces b/w neurons are called.....
a- synapses
b- dendrites
c- inter-neurons
d- cell gaps
(S1, p218-228)
a- synapses
(Q3)
As light passes obliquely from air to water, it is bent. This bending is called.....
a- diffraction
b- reflection
c- refraction
d- dispersion
(S1, p218-228)
c- refraction
(Q7)
Which of the following organelles is NOT involved in protein synthesis?
a- ribosome
b- mitochondrion
c- rough ER
d- nucleus
(S1, p218-228)
d- nucleus
(Q8)
NOTE:
- the nucleus contains DNA
- the ribosomes, located on the rough er, are the site for protein synthesis
- the mitochondrion are the sites of cellular respiration
Which group of organisms helps prevent the accumulation of organic wastes in nature?
a- rabbits
b- mosses
c- bacteria
d- ferns
(S1, p218-228)
c- bacteria
(Q15)
Bacteria comprise the decomposer portion of the food chain. They are responsible for recycling organic material into inorganic material that plants can use to undergo photosynthesis
As the eardrum is made to vibrate more rapidly, the sound is perceived as.....
a- louder in intensity
b- softer in intensity
c- higher in pitch
d- lower in pitch
(S1, p218-228)
c- higher in pitch
(Q16)
the more rapid the vibration is, the higher the pitch is
A human egg will develop into a female if it is fertilized by a sperm containing.....
a- an x chromosome
b- a y chromosome
c- an xy chromosome
d- an xxy chromosome
(S1, p218-228)
a- an x chromosome
(Q20)
Female: xx
Male: xy
In a food chain involving grass, grasshoppers, birds, and mammals, the original source of energy is
a- glucose
b- sunlight
c- chlorophyll
d- atp
(S1, p218-228)
b- sunlight
(Q21)
- sunlight is absorbed by chlorophyll contained in plants
- the absorbed energy fuels photosynthesis, which produces glucose
- in this food chain, grass is the producer
The function common to the organs in the human endocrine system is.....
a- reproduction
b- secretion
c- respiration
d- excretion
(S1, p218-228)
b - secretion
(Q29)
The organs of the endocrine system produce hormones, which are SECRETED in response to various stimuli
A reading on the celsius (C) scale is 5 degrees. On the fahrenheit (F) scale, the reading would be closest to....
a- 225
b- 30
c- 40
d- 95
(S1, p218-228)
c- 40
(Q32)
Conversion Formula
F= (9/5) x C + 32
A substance with a pH of 8 is a....
a- strong acid
b- weak acid
c- strong base
d- weak base
(S1, p218-228)
d- weak base
(Q40)
Binary fission in paramecia and budding in yeast cells are examples of.....
a- asexual reproduction only
b- sexual reproduction only
c- spontaneous generation and sexual reproduction
d- both sexual and asexual reproduction
(S1, p218-228)
a- asexual reproduction only
(Q41)
Which of these substances forms an alkaline solution in water?
a- Mg(OH)2
b- H2SO4
c- MgSO4
d- NaCl
(S1, p218-228)
a- Mg(OH)2
(Q42)
Alkaline= base
- answer a is the only base of the 4 choices
(recall bases are characterized by OH-)
Certain seaweeds accumulate iodine in a concentration as much as a million times greater than that of the surrounding ocean. How must this intake be accomplished?
a- osmosis
b- diffusion
c- active transport
d- passive transport
(S1, p218-228)
c- active transport
(Q46)
Since the concentrations are so much greater in seaweed than in the surrounding water, iodine must have to move against the concentration gradient. Thus, the transport process using energy must be involved for the seaweed to accumulate such a great concentration of iodine
Hydrogen can be prepared in the lab by combining Zn and HCl. In the resulting reaction, the metallic zinc (Zn)....
a- is changed to another element
b- reacts with the water in the acid
c- replaces the combined hydrogen in the acid
d- serves as a catalyst
(S1, p218-228)
c- replaces the combined hydrogen in the acid
(Q47) [Show Less]