2025 BASSET Latest Questions With 100% C0rrect
Answers
What are the osmotic conditions in jellies and jams compared to the
bacterial cytoplasm?
A.Jelly is hypertonic to the cytoplasm
B.Jelly is isotonic to the cytoplasm
C.Jelly is hypotonic to the cytoplasm - ANSWER-A
Facilitated diffusion ____________?
A. Requires a carrier and energy
B. Requires a carrier but not energy
C. Requires neither a carrier nor energy
D. Modifies the substrate during transpo - ANSWER-B
A cell exposed to a hypertonic
environment will ______ by osmosis.
1. Gain water
2. Lose water
1|Page
,3. Neither gain nor lose water
4. Burst - ANSWER-2
Active transport of a substance across a membrane requires a
concentration gradient.
1. True
2. False - ANSWER-2
Which of these terms describes a microorganism that grows at human
body temperature (37 oC)?
1. Thermophile
2. Psychrophile
3. Psychrotroph
4. Mesophile - ANSWER-4
Psychrophiles would be expected to grow
1. In hot springs
2. On the human body
3. At refrigeration temperatures
4. At low pH - ANSWER-3
2|Page
, Which of these terms describes microbes that do not use oxygen, but
can grow if it is present?
1. Obligate aerobe
2. Obligate anaerobe
3. Facultative anaerobe
4. Aerotolerant anaerobe - ANSWER-4
Organisms such as Clostridium lack oxygen-detoxifying enzymes, thus
they are:
1. Obligate aerobes.
2. Obligate anaerobes.
3. Facultative anaerobes.
4. Aerotolerant anaerobes. - ANSWER-2
What sort of microbe only grows in the presence of oxygen?
A. Anaerobe
B. Facultative anaerobe
C. Aerobe
D. Halophile - ANSWER-C
Sugars and salts are used to preserve foods because they:
1. Induce the formation of oxygen free radicals.
2. Inhibit cell wall biosynthesis.
3|Page
Answers
What are the osmotic conditions in jellies and jams compared to the
bacterial cytoplasm?
A.Jelly is hypertonic to the cytoplasm
B.Jelly is isotonic to the cytoplasm
C.Jelly is hypotonic to the cytoplasm - ANSWER-A
Facilitated diffusion ____________?
A. Requires a carrier and energy
B. Requires a carrier but not energy
C. Requires neither a carrier nor energy
D. Modifies the substrate during transpo - ANSWER-B
A cell exposed to a hypertonic
environment will ______ by osmosis.
1. Gain water
2. Lose water
1|Page
,3. Neither gain nor lose water
4. Burst - ANSWER-2
Active transport of a substance across a membrane requires a
concentration gradient.
1. True
2. False - ANSWER-2
Which of these terms describes a microorganism that grows at human
body temperature (37 oC)?
1. Thermophile
2. Psychrophile
3. Psychrotroph
4. Mesophile - ANSWER-4
Psychrophiles would be expected to grow
1. In hot springs
2. On the human body
3. At refrigeration temperatures
4. At low pH - ANSWER-3
2|Page
, Which of these terms describes microbes that do not use oxygen, but
can grow if it is present?
1. Obligate aerobe
2. Obligate anaerobe
3. Facultative anaerobe
4. Aerotolerant anaerobe - ANSWER-4
Organisms such as Clostridium lack oxygen-detoxifying enzymes, thus
they are:
1. Obligate aerobes.
2. Obligate anaerobes.
3. Facultative anaerobes.
4. Aerotolerant anaerobes. - ANSWER-2
What sort of microbe only grows in the presence of oxygen?
A. Anaerobe
B. Facultative anaerobe
C. Aerobe
D. Halophile - ANSWER-C
Sugars and salts are used to preserve foods because they:
1. Induce the formation of oxygen free radicals.
2. Inhibit cell wall biosynthesis.
3|Page
