Biology
1. How do hormones work?
a. by releasing adrenaline
b. by controlling cell chemistry
c. by regulating water loss
d. by controlling blood pressure
Ans: b
2. Name the male and female sex hormones
a. sperm cell and ovum
b. testosterone
c. chromosomes
d. red and white blood cells
Ans: a
3. The unit of measurement of energy in a given amount food.
a. pound
b. kilo
c. olfactory system
d. calorie
Ans: d
4. Nitrogen compounds known as the building blocks of proteins
a. enzymes
b. glucose
c. nutrients
d. amino acids
Ans: d
5. The growth of root towards water is an example of?
a. chemotropism
b. geotropism
c. hydrotropism
d. photoprism
Ans: c
6. DNA means?
a. data nurturing analysis
b. deoxytribonucleic acid
c. deoxyribonucleic acid
d. deotrixyl nucleic acid
Ans: c
7. What are the 3 products of oxygen when it has been burned?
a. water, carbon dioxide and air b. energy, water and carbon
c. energy, carbon and oxide
d. energy, air and water
Ans: b
8. In flowering plants, fertilization takes place in the?
a. pollen tube
b. stamen
c. ovules
d. pollen grains
Ans: c
9. The development or egg without fertilization.
a. mitosis
b. parthenogenesis
c. spermatogenesis
d. mitochondria
Ans: b
10. Which of the following is a source of energy needed for photosynthesis?
a. water
b. soil
c. light
d. fertilizer
Ans: c
11. They connect roots and leaves and serve as passageway and storage for food minerals and water from the soil.
a. branches b. stem
c. trunk
d. tap roots
Ans: b
12. The process by which plants produce food using carbon dioxide and water, sunlight and chlorophyll.
a. reproduction
b. photosynthesis
c. fruit bearing
d. chemosynthesis
Ans: b
13. Process by w/c plants reproduce asexually by using their parts such as roots, stems and leaves.
a. mitosis
b. artificial propagation
c. vegetation reproduction
d. grafting
Ans: c
14. The smallest part of living thing which performs all the processes a living organism does
a. organ
b. cell
c. tissue
d. system
Ans: b
15. A group of tissues working together to perform a complex task.
a. system b. organ c. network d. skin
Ans: b
16. Male and female reproductive parts of a flower.
a. pollen grains and ovules b. stamen and pistil
c. pollen grain and pistil
d. stamen and ovules
