Teacher Juana Bee

Teacher Juana Bee Let us help each other to pass the LET

15/06/2023

Practice Test-Part 3
21. It is a segment of DNA molecule which controls the appearance of a given trait.
a. chromosomes
b. genes
c. gametes
d. zygotes
Ans: b

22. Group of similar cell performing similar functions together.
a. organs
b. system
c. nucleus
d. tissue
Ans: d

23. The diffusion of water through a semi – permeable membrane.
a. osmosis
b. permeability
c. transfusion
d. capillary
Ans: a

24. It shows the complex food relationships of organism in a given area and the cyclic flow of food
through organisms.
a. food chain
b. food web
c. food pyramid
d. biological cycle
Ans: b

25. Which of the following does NOT occur to both respiration and fermentation?
a. energy is released
b. sugar is broken down
c. carbon dioxide is produced
d. alcohol
Ans: d

26. The genetic information in a DNA is coded in the _______________________?
a. sequence of ribonucleotides
b. proportion of the base results
c. base pairings
d. sequence of nucleotides
Ans: d

27. What will be the cause the process of respiration to stop?
a. absence of oxygen
b. absence of sunlight
c. decrease in water supply
d. presence of sunlight
Ans: a

28. What relationship exist between and a bangus and tilapia in the fishpond?
a. commensalisms
b. mutualism
c. competition
d. predation
Ans: c

29. Taxonomy is the study of the classification of organism based on their?
a. genetics
b. evolutionary history
c. development pattern
d. habitat
Ans: b

30. A specie is said to be ________ when its number is so few that it will most likely disappear altogether
unless given proper protection.
a. disappearing
b. extinct
c. depleted
d. endangered
Ans: d

31. Some bacteria are classified as saprophytes because because they organism which?
a. feed on dead organic matter
b. feed on other living things
c. undergo photosynthesis
d. have hydrolytic enzymes
Ans: a

32. In humans, food is moved down the esophagus into the stomach by means of?
a. cyclosis
b. peptic acids
c. peristalsis
d. active transport
Ans: c

33. The structure outside the nucleus in animal cells that is involved in mitosis.
a. ribosome
b. chromosome
c. centriole
d. microtubule
Ans: c

34. Coordination and integration of the body activities of man are under the direct control of the
_______________?
a. reproduction and transport system
b. nervous and endocrine system
c. nervous and excretory system
d. respiratory and endocrine system
Ans: b

35. Genetic engineering has been utilized for the production of _______________?
a. genes
b. salivary amylase
c. uric acid crystals
d. human growth hormones
Ans: d

15/06/2023

Practice Test-Part 2
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 as*xually 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
Ans: b

17. In the human body, the cell that most nearly resembles a one – celled animal.
a. red blood cell
b. white blood cell
c. nerve cell
d. antibodies
Ans: b

18. The main energy source of plant – eating animal.
a. glucose
b. starch
c. celluse
d. glycogen
Ans: c

19. These are cellular secretions which help regulate the breakdown and buildup of various
substances in the body.
a. enzymes
b. amino acids
c. plasma
d. hormones
Ans: b

20. It is energy source of the cell which it uses for growing, reproducing and other activities.
a. adenosine triphosphate (ATP)
b. amino acids
c. Chloroplast
d. sunlight
Ans: a

15/06/2023
14/06/2023

Practice Test-Part 1
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 s*x hormones
a. s***m cell and o**m
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: b

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. s***matogenesis
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

14/06/2023

Practice Test
1. Where do producers obtain their energy?
A. From other producers
B. From the consumers
C. From the decomposers
D. From the sun

2. Why do you experience not seeing things clearly for some seconds when you enter suddenly a well-lighted room after coming from a dark room, you?
A. The pupils are not adapted to the dark
B. The eyes are adapted to the light only
C. The pupils are not dilated yet
D. Light had caused temporary blindness

3. What term is used to describe the ability to maintain a constant internal environment?
A. Metabolism
B. Growth and development
C. Homeostasis
D. Thermoregulation

4.What is the most common cause of cardiovascular disease?
A. Fatty deposits in the arteries
B. Inadequate supply of red blood cells
C. Lack of sodium in the diet
D. Increased heartbeat

5.Which is the smallest unit of life that can survive and reproduce on its own?
A. Cell
B. Organ
C. Tissues
D. Population

6.Which region of a vertebrate forebrain is considered with the neutral-endocrine control of visceral activities?
A. Cerebellum
B. Thalamus
C. Hypothalamus
D. Pituitary

7.Which of the following is the building block carbohydrate?
A. Amino acid
B. Nucleotide
C. Fatty acid
D. Monosaccharide

8.Why it is necessary men have more red blood cells per cubic millimeter of blood than women?
A. Man does strenuous activities and need more energy
B. They have bigger physique and need more blood
C. Man waste more blood cells and need extra
D. They are more prone to anemia disorders

9.Which of the following is the building block of protein?
A. Amino acid
B. Nucleotide
C. Fatty acid
D. Monosaccharide

10.Where does protein synthesis take place?
A. Ribosomes
B. Lysosomes
C. Endoplasmic reticulum
D. Golgi bodies

11.Why are our lips “redder” than our palm?
A. There is increased blood flow in the lips
B. Lips are heavily keratinized
C. Lip epidermis is thinner
D. Many blood vessels are located around the lips

12.Which of the following cannot be found in prokaryotes?
A. Cytoplasm
B. Plasma membrane
C. Membrane-bound nucleus
D. DNA

13.What do we call mutation that is brought about by the earth natural radioactivity?
A. Continuous
B. Induced
C. Lysosomes
D. Chloroplast

14.Which of the following organelles produces turbo pressure against cell wall and mainly acts as water reservoir
A. Plastids
B. Vacuole
C. Lysosomes
D. Chloroplast

15.What is the branch crobial organisms is used in the creation of genetically modified organisms?
A. Pseudomonas vulgaris
B. Bacillus thuringensis
C. Agro bacterium tumafaciens
D. Escherichia coli

16.What is the branch of zoology that is devoted to the study of fish?
A. Helmintology
B. Ichthyology
C. Chondrichthyes
D. Ornithology

17.The process involved in the production of mRNA using DNA as template is termed _______?
A. Transcription
B. Replication
C. Gene manipulation
D. Reverse transcription

18.What is the most abundant inorganic compound in the protoplasm?
A. Fluid
B. Blood
C. Plasma
D. Water

19.Which is the riches type of tropical rain forest in the Philippines?
A. Molave forest
B. Dipterocarp forest
C. Mangrove forest
D. Pine forest

20.What muscle is described as involuntary, not striated, and have a single nucleus?
A. Smooth
B. Skeletal
C. Cardiac
D. Connective

08/06/2023

Diversity and Classification

1. Linnaeus based his classification of plants on
A. usefulness to man.
B. evolutionary changes.
C. environmental factors.
D. structural characteristics.

The next five questions refer to the following name for a vine maple tree:Acer circinatum

2. The name as it is written is
A. correct.
B. incorrect because it should be underlined.
C. incorrect because both words should be capitalized.
D. incorrect because neither word should be capitalized.

3. The biological name for a vine maple tree is
A. Acer.
B. circinatum.
C. Acer circinatum.
D. none of the above.

4. The genus name for a vine maple tree is
A. Acer.
B. circinatum.
C. Acer circinatum.
D. none of the above.

5. The species name for a vine maple tree is
A. Acer.
B. circinatum.
C. Acer circinatum.
D. none of the above.

6. The use of two-word names like this is called
A. taxonomy.
B. dichotomy.
C. dinomial taxomony.
D. binomial nomenclature.

7. Biologists who classify organisms are called
A. organists.
B. taxonomists.
C. taxidermists.
D. taxorganists.

8. All taxa larger than "species" are
A. arbitrary.
B. written in italics.
C. biologically useless.
D. artificial, defined by man.

9. Horses and zebras are not considered to be members of the same species because they
A. do not interbreed.
B. eat different foods.
C. are of different sizes.
D. have different markings.

10. Members of the same species
A. are in the same genus.
B. live in the same location.
C. interact s*xually with each other.
D. are all the same color and shape.

08/06/2023

1. The fact that no two members of the same species are absolutely identical is an example of
A. diversity
B. homeostasis.
C. change through time.
D. structural adaptations.

2. Which of the following is the BEST example of the biological principle of structural adaptations?
A. Pigs have litters.
B. Snakes eat frogs.
C. There are many breeds of dogs.
D. Cacti needles are modified branches.

3. The fact that some flowers close up at night and open up during the day is an example of
A. continuity.
B. interactions.
C. homeostasis.
D. structural adaptations.

4. A litter of puppies being born to a dog is an example of
A. continuity.
B. interactions.
C. changes through time.
D. structural adaptations.

5. The relationship between a carnivore (wolf) and a herbivore (rabbit) is an example of
A. unity.
B. interactions.
C. changes through time.
D. structural adaptations.

6. Which levels of biological organization includes all the others listed?
A. Biome.
B. Ecosystem.
C. Population.
D. Community.

7. What is a group of tissues with a unifying function called?
A. Cell.
B. Organ.
C. Organism.
D. Organ system.

8. Biology is the study of
A. life.
B. plants.
C. animals.
D. organisms.

9. Which of the following levels of study in biology is MORE GENERAL than “community”?
A. Species.
B. Ecosystem.
C. Population.
D. Organ system.

10. Which of the following sequences correctly specifies the study of insects?
A. Biology – botany – entomology.
B. Zoology – biology – insectology.
C. Biology – zoology – entomology.
D. Biology – zoology – microbiology.

Address

Samal
2113

Alerts

Be the first to know and let us send you an email when Teacher Juana Bee posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Shortcuts

Share