1. Energy conversions give off _____ as a byproduct. This keeps us warm, and kee
ID: 53712 • Letter: 1
Question
1. Energy conversions give off _____ as a byproduct. This keeps us warm, and keeps our car engines warm, too.
A carbon dioxide
B carbon monoxide
C ATP
D water
E heat
2. _____ is a key step in cellular respiration.
A Glycolysis
B The citric acid cycle
C Electron transport
D both A and B
E A, B and C
3. The carbs we eat can be stored in our bodies as the complex carbohydrate _____.
A ATP
B glycogen
C triglyceride
D fat
E both A and C
4. _____ is the primary pigment in leaves, which reflects green light and absorbs red and blue light.
A anthocyanin
B chlorophyll
C xanthophyll
D carotene
E cuticle
5. Plants limit their loss of water in dry environments by _____.
A having thick, waxy leaves
B closing stomata during hottest part of the day
C storing CO2 in plant tissues, when stomata are closed
D opening stomata mainly at night, to bring in CO2
E all of the above
Explanation / Answer
1. Energy conversions give off heat as a byproduct. This keeps us warm, and keeps our car engines warm, too.
Answer is Option E.
2. Glycolysis,Citric acid cycle and Electron transport chain is a key step in cellular respiration.
Answer is Option E that is A, B and C.
3. The carbs we eat can be stored in our bodies as the complex carbohydrate glycogen.
Answer is Option B.
4. Clorophyll is the primary pigment in leaves, which reflects green light and absorbs red and blue .
Answer is Option B.
5. Plants limit their loss of water in dry environments by having thick, waxy leaves,closing stomata during hottest part of the day,storing CO2 in plant tissues, when stomata are closed ,opening stomata mainly at night, to bring in CO2
Answer is option E .
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