4/20/26, 3:12 PM NST1502-26-Y: Assessment 1
Opened: Monday, 6 April 2026, 8:00 AM
Closes: Monday, 20 April 2026, 11:00 PM
620382
Attempts allowed: 3
Grading method: Highest grade
Summary of your previous attempts
Attempt State Marks / 50.00 Grade / 100.00 Review
1 Finished 50.00 100.00
Submitted Monday, 20 April 2026, 3:12 PM
Highest grade: 100..00.
https://mymodules.dtls.unisa.ac.za/mod/quiz/view.php?id=1378683 1/1
,4/20/26, 3:10 PM Assessment 1 (page 1 of 5)
UNISA 2026 NST1502-26-Y Welcome Message Assessment 1
QUIZ
Question 1
Answer saved
Marked out of 1.00
A biology student breathes into a flask containing green algae and seals it. Over time, the algae grow. What conclusion can
be drawn?
a. Algae rely on human DNA
b. Algae use oxygen to grow
c. Algae use carbon dioxide for photosynthesis
d. Algae need darkness to thrive
Clear my choice
Question 2
Answer saved
Marked out of 1.00
A class observes two plants: one in sunlight and one in darkness. The one in sunlight thrives. What is the best explanation?
a. Plants dislike darkness
b. Photosynthesis occurs in light, which provides energy
c. Sunlight kills harmful bacteria
d. Water evaporates more in sunlight
Clear my choice
Question 3
Answer saved
Marked out of 1.00
A farmer notices that crop plants wilt more quickly on hot, dry days. Which physiological process is being affected the most?
a. Photosynthesis
b. Transpiration
c. Germination
d. Fertilization
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=32734212&cmid=1378683# 1/4
, 4/20/26, 3:10 PM Assessment 1 (page 1 of 5)
Question 4
Answer saved
Marked out of 1.00
A farmer switches from planting one crop to several crops in rotation. What is the most likely effect?
a. Reduced photosynthesis
b. Reduced biodiversity
c. Increased soil nutrients and biodiversity
d. Decreased oxygen levels
Clear my choice
Question 5
Answer saved
Marked out of 1.00
A group of students argues whether photosynthesis or cellular respiration is more important for sustaining life on Earth.
Which is the most balanced conclusion?
a. Photosynthesis is more important because it produces food
b. Respiration is more important because it provides energy
c. Both are equally important because they depend on each other
d. Photosynthesis is less important because it only occurs in plants
Clear my choice
Question 6
Answer saved
Marked out of 1.00
A group of students argues whether photosynthesis or cellular respiration is more important for sustaining life on Earth.
Which is the most balanced conclusion?
a. Photosynthesis is more important because it produces food
b. Respiration is more important because it provides energy
c. Both are equally important because they depend on each other
d. Photosynthesis is less important because it only occurs in plants
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=32734212&cmid=1378683# 2/4
Opened: Monday, 6 April 2026, 8:00 AM
Closes: Monday, 20 April 2026, 11:00 PM
620382
Attempts allowed: 3
Grading method: Highest grade
Summary of your previous attempts
Attempt State Marks / 50.00 Grade / 100.00 Review
1 Finished 50.00 100.00
Submitted Monday, 20 April 2026, 3:12 PM
Highest grade: 100..00.
https://mymodules.dtls.unisa.ac.za/mod/quiz/view.php?id=1378683 1/1
,4/20/26, 3:10 PM Assessment 1 (page 1 of 5)
UNISA 2026 NST1502-26-Y Welcome Message Assessment 1
QUIZ
Question 1
Answer saved
Marked out of 1.00
A biology student breathes into a flask containing green algae and seals it. Over time, the algae grow. What conclusion can
be drawn?
a. Algae rely on human DNA
b. Algae use oxygen to grow
c. Algae use carbon dioxide for photosynthesis
d. Algae need darkness to thrive
Clear my choice
Question 2
Answer saved
Marked out of 1.00
A class observes two plants: one in sunlight and one in darkness. The one in sunlight thrives. What is the best explanation?
a. Plants dislike darkness
b. Photosynthesis occurs in light, which provides energy
c. Sunlight kills harmful bacteria
d. Water evaporates more in sunlight
Clear my choice
Question 3
Answer saved
Marked out of 1.00
A farmer notices that crop plants wilt more quickly on hot, dry days. Which physiological process is being affected the most?
a. Photosynthesis
b. Transpiration
c. Germination
d. Fertilization
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=32734212&cmid=1378683# 1/4
, 4/20/26, 3:10 PM Assessment 1 (page 1 of 5)
Question 4
Answer saved
Marked out of 1.00
A farmer switches from planting one crop to several crops in rotation. What is the most likely effect?
a. Reduced photosynthesis
b. Reduced biodiversity
c. Increased soil nutrients and biodiversity
d. Decreased oxygen levels
Clear my choice
Question 5
Answer saved
Marked out of 1.00
A group of students argues whether photosynthesis or cellular respiration is more important for sustaining life on Earth.
Which is the most balanced conclusion?
a. Photosynthesis is more important because it produces food
b. Respiration is more important because it provides energy
c. Both are equally important because they depend on each other
d. Photosynthesis is less important because it only occurs in plants
Clear my choice
Question 6
Answer saved
Marked out of 1.00
A group of students argues whether photosynthesis or cellular respiration is more important for sustaining life on Earth.
Which is the most balanced conclusion?
a. Photosynthesis is more important because it produces food
b. Respiration is more important because it provides energy
c. Both are equally important because they depend on each other
d. Photosynthesis is less important because it only occurs in plants
Clear my choice
https://mymodules.dtls.unisa.ac.za/mod/quiz/attempt.php?attempt=32734212&cmid=1378683# 2/4
