1. An exergonic reaction ____________ . a. has the same amount of energy in the reactants and the product b. has reactants that contain more energy than the product c. requires the input of energy d. releases energy 2. Which of these is an example of a phenotype? a. Bb b. heterozygote c. brown hair d. answers a and c are both correct 3. Polar bodies are ____________ . a. cells found in the arctic b. formed during meiosis when sperm are made c. formed during meiosis when eggs are made d. an inactive X chromosome 4. True or false: living things are the only things that possess metabolism. a. True b. False 5. Sister chromatids are produced (not when you can see them) during _____ . a. Telophase b. Anaphase c. Interphase d. Prophase 6. Trisomy 21 or \"Down\'s Syndrome\" is an example of nondisjunction. This means ___ . a. chromosomes failed to separate during meiosis b. chromosomes failed to separate during mitosis c. two genes overlapped at more than one junction d. two genes failed to overlap at more than one junction 7.____is an example of Homeostasis. a. a bird\'s ability to fly (remain in the air against gravity) b. a mammal\'s ability to regulate glucose levels in the blood c. a fish\'s ability to stay in one place in water without moving it\'s fins d. a bee\'s ability to return to it\'s hive after a long flight 8. In a monohybrid cross (with 2 heterozygous parents), we always get a _____ratio of phenotypes. a. 3:1 b. 9:3:3:1 c. 1:1 d. 1:2:1 9. Which characteristic is not a characteristic of the kingdom Fungi a. nonmotile b. photosynthetic C. multicellular d. eukaryotic 10. During diffusion ions will ___________without adding energy. a. move in both directions b. move from high concentration c. move from high concentration to low concentration d. not move 11. \"P\" in ATP represents the element _______. a. phosphorus b. sodium c. calcium d. potassium 12. In mitosis during anaphase _____. a. chromosomes line up at the (equator) b. DNA unwinds into chromatin and a nuclear membrane forms. c. sister chromatids separate and migrate to opposite poles d. DNA winds up into chromosomes and becomes visible under a microscope 13. In humans the first 22 pairs of chromosomes are called ___chromosomes. a. sex b. lethal c. short d. autosomal 14. These three things are required for photosynthesis to occur a. sugar, light, carbon dioxide b. sugar, light, water c. light, oxygen, carbon dioxide d. light, carbon dioxide, water 15. Which is true of a \"theory\" in science? a. it is a best guess b. It is a statement of facts observed c. It is a fact that science has been unable to disprove d. All of the above are correct 16. The process of producing a protein from mRNA is __________. a. mitosis b. transition c. translation d. transcription Solution Answer 1 An exergonic reaction: (d) releases energy exergonic reaction releases energy, it is exothermic , the reactants lose energy to form the product, the reaction is spontaneous.\' 2) Which of these is an example .

1. 1. An exergonic reaction ____________ .
a. has the same amount of energy in the reactants and the product
b. has reactants that contain more energy than the product
c. requires the input of energy
d. releases energy
2. Which of these is an example of a phenotype?
a. Bb
b. heterozygote
c. brown hair
d. answers a and c are both correct
3. Polar bodies are ____________ .
a. cells found in the arctic
b. formed during meiosis when sperm are made
c. formed during meiosis when eggs are made
d. an inactive X chromosome
4. True or false: living things are the only things that possess metabolism.
a. True b. False
5. Sister chromatids are produced (not when you can see them) during _____ .
a. Telophase
b. Anaphase
c. Interphase
d. Prophase
6. Trisomy 21 or "Down's Syndrome" is an example of nondisjunction. This means ___ .
a. chromosomes failed to separate during meiosis
b. chromosomes failed to separate during mitosis
c. two genes overlapped at more than one junction
d. two genes failed to overlap at more than one junction
7.____is an example of Homeostasis.
a. a bird's ability to fly (remain in the air against gravity)
b. a mammal's ability to regulate glucose levels in the blood
c. a fish's ability to stay in one place in water without moving it's fins

2. d. a bee's ability to return to it's hive after a long flight
8. In a monohybrid cross (with 2 heterozygous parents), we always get a _____ratio of
phenotypes.
a. 3:1 b. 9:3:3:1 c. 1:1 d. 1:2:1
9. Which characteristic is not a characteristic of the kingdom Fungi
a. nonmotile
b. photosynthetic
C. multicellular
d. eukaryotic
10. During diffusion ions will ___________without adding energy.
a. move in both directions
b. move from high concentration
c. move from high concentration to low concentration
d. not move
11. "P" in ATP represents the element _______.
a. phosphorus b. sodium c. calcium d. potassium
12. In mitosis during anaphase _____.
a. chromosomes line up at the (equator)
b. DNA unwinds into chromatin and a nuclear membrane forms.
c. sister chromatids separate and migrate to opposite poles
d. DNA winds up into chromosomes and becomes visible under a microscope
13. In humans the first 22 pairs of chromosomes are called ___chromosomes.
a. sex b. lethal c. short d. autosomal
14. These three things are required for photosynthesis to occur
a. sugar, light, carbon dioxide
b. sugar, light, water
c. light, oxygen, carbon dioxide
d. light, carbon dioxide, water
15. Which is true of a "theory" in science?
a. it is a best guess
b. It is a statement of facts observed
c. It is a fact that science has been unable to disprove
d. All of the above are correct
16. The process of producing a protein from mRNA is __________.
a. mitosis b. transition c. translation d. transcription

3. Solution
Answer 1
An exergonic reaction: (d) releases energy
exergonic reaction releases energy, it is exothermic , the reactants lose energy to form the
product, the reaction is spontaneous.'
2) Which of these is an example of a phenotype? : (c). brown hair
Phenotype is the appearance hence brown hair is the phenotype, Bb and heterogygous is the
genotype
3. Polar bodies are : c. formed during meiosis when eggs are made
polar bodies are haploid cells formed during oogenesis but which lack the ability to be fertilised.
4. True or false: living things are the only things that possess metabolism. (a) True
Non-living things do not metabolise.
5. Sister chromatids are produced (not when you can see them) during : c. Interphase
Sister chromatids are formed during the S phase of interphase.
6.Trisomy 21 or "Down's Syndrome" is an example of nondisjunction. This means . a.
chromosomes failed to separate during meiosis
Trisomy 21 is an example of mieotic non-disjunction event.
7. ____is an example of Homeostasis. : b. a mammal's ability to regulate glucose levels in the
blood .
Homeostasis is the state of steady state maintained in the system (body) and is a tendency
towards relatively stable equilibrium.
8. In a monohybrid cross (with 2 heterozygous parents), we always get a _____ratio of
phenotypes. : a. 3:1
monohybrid cross gives the F1 population with phenotype as 3:1
dihybrid gives F1 genotype as 9:3:3:1
test cross: 1:1
ratio of genotype is 1:2:1 in monohybrid cross
9. Which characteristic is not a characteristic of the kingdom Fungi : b. photosynthetic
Fungi are multicelluar, eularyotic and non-motile
10. During diffusion ions will ___________without adding energy. c. move from high
concentration to low concentration
diffusion happens when ions move from hogher concentration towards lower concentration.
11. "P" in ATP represents the element _______. : a. phosphorus
P in ATP is the phosphate ion made up of phosphorus.

4. 12. In mitosis during anaphase _____. : c. sister chromatids separate and migrate to opposite
poles
During anaphase the sister chromatids seperate towards the opposite poles.
13. In humans the first 22 pairs of chromosomes are called ___chromosomes. d. autosomal
the 22 pairs of chromosome are called autosomes and the rest 1 pair is called sex chromosome.
14. These three things are required for photosynthesis to occur :
Photosynthesis convert CO2, and water in presence of light into sugar and oxygen.
15. Which is true of a "theory" in science? b. It is a statement of facts observed
Scientific theory is a tested and expanded hypothesis made on resonable scientific evidence.
16. The process of producing a protein from mRNA is __________. : c. translation
translation refers to the process of production of proteins from mRNA