MCQ in Biological Science Part 5 | Licensure Exam for Teachers Review

This is the LET Reviewer 2021, Multiple Choice Questions in Biological Science Part 5 as one coverage of Licensure Examinations for Teachers (LET). The exam is divided into two classifications. First is the elementary level exam which covers topics from General Education (GenEd) 40% and Professional Education (ProfEd) 60%. Secondly is the secondary level which covers GenEd 20%, ProfEd 40% and area of specialization 40%. I assume you are looking for a reviewer that will help you achieve your goal to become a professional License teacher very soon. Yes, you are in the right place to make your dream come true. Make sure to familiarize each and every questions to increase the chance of passing the Licensure Examinations for Teachers (LET).

Area of Specialization Coverage

Area of specialization refers to the majorship or the specific field that BSED graduate will handle:

• ENGLISH
• BIOLOGY
• CHEMISTRY
• VALUES
• MATH
• FILIPINO
• SOCIAL STUDIES
• MUSIC, ART, PHYSICAL EDUCATION, and HEALTH or MAPEH
• TECHNOLOGY and LIVELIHOOD EDUCATION
• AGRICULTURE AND FISHERY ARTS

Continue Practice Exam Test Questions Part 5 of the Series

⇐ MCQ in Biological Science Part 4 | Licensure Exam for Teachers 2021

Choose the letter of the best answer in each questions.

201. Which of the following is a part of the process of chemiosmosis?

a. Protons move along the electron transport chain.

b. Water molecules are split.

c. Hydrogen ions pass through membranes.

d. Light is absorbed by chlorophyll.

202. During mitosis, a double-stranded chromosome is attached to a spindle fiber at the.

a. cell plate

b. centromere

c. centrosome

d. centriole

203. Which is an effect of drugs on cells?

a. Produce toxic substance

b. Discontinuous cell activity

c. Cause damage to their structure

d. Poison the cell liquid

204. The cell wall of plant is made of .

a. Lipids

b. Cellulose

c. Protein

d. Cell membrane

205. Which is the storage cell of plants?

a. Microtubule

b. Collenchyma

c. Meristem

d. Parenchyma

206. Which results from drinking saltwater?

a. Poisoning of the cells

b. Dehydration of the cells

c. Increase in cell pressure

d. Bursting of the cells

207. What kind of tissue lines our skin and what is its important function?

a. Nerve tissue; responsible for reflexes

b. Epithelial; protection from ultraviolet radiation

c. Nerve tissue; receive stimuli on the skin

d. Epithelial; produce new cells when peeled off

208. At metaphase of the first meiotic division, the chromosomes are attached to the spindle fibers as _____.

a. double chromatids

b. non-homologous pairs

c. single chromatid strand

d. a tetrad of chromatids

209. Which type of cell would probably provide the best opportunity to study lysosomes?

a. Leaf

b. Nerve

c. Muscle

d. White blood

210. Which best describes meiosis as another form of cell division with accompanying nuclear changes?

a. The nuclear changes follow one another indefinitely.

b. Each new cell has double the amount from both parents.

c. The nucleoli break up into two parts and disappear.

d. Each new cell has half the number of chromosomes.

211. How are mitochondria and chloroplasts similar to bacteria? They

a. are larger than normal cells.

b. are bounded by a single membrane.

c. lack ribosomes.

d. have a limited amount of genetic material.

212. Which is the energy storage compound used to do all forms of work of the cell?

a. Electron

b. Adenine

c. Nicotinamide

d. Adenosine triphosphate

213. Meiosis reduces genetic make-up by half. What process brings it back to diploid state?

a. Menstruation

b. Fertilization

c. Ejaculation

d. Mitosis

214. The bipolar nature of the cell membrane is due to

a. presence of carriers

b. presence of glycolipids

c. phospholipid bilayer

d. integral protein

215. When a red blood cell is placed in distilled water, it.

a. plasmolyses

b. remains the same

c. shrinks

d. swells

216. The “eyes” of potato are actually.

a. internodes

b. nodes

c. leaf scars and buds

d. stems

217. Which of these is NOT a fruit?

a. Cucumber

b. Ampalaya

c. Squash

d. Carrot

218. Which plant has underground stem modified for reproduction?

a. Banana

b. Bermuda

c. Tubers

d. Strawberry

219. Which plants formed the vast coal beds during the carboniferous period?

a. Lycopods

b. Conifers

c. Angiosperms

d. Gymnosperms

220. What kind of relationship is exhibited by an alga and a fungus in lichen?

a. Commensalism

b. Parasitism

c. Mutualism

d. Competition

221. Chlorophyll appears green because the green portion of light is

a. dispersed

b. absorbed

c. refracted

d. reflected

222. The end products of dark reaction phase of photosynthesis are ADP and

a. carbon dioxide

b. sugar

c. carbon

d. nitrogen

223. Which gas is needed by the seed during germination?

a. Nitrogen

b. Carbon dioxide

c. Hydrogen

d. Oxygen

224. Which is the universal energy source of the cell of all living things?

a. Carbon

b. ATP

c. H2O

d. PGAL

225. When the staminate flower is found in one plant and the pistillate flower on another, the plants is described as

a. complete

b. monoecious

c. robust

d. dioecious

226. Which pigment is dominant in red algae?

a. Phycocyanin

b. Fucoxanthin

c. Chlorophyll

d. Phycoerythrin

227. Which process during photosynthesis involves the addition of hydrogen?

a. Oxidation

b. Hydration

c. Carbonation

d. Reduction

228. The dark reaction phase of photosynthesis consists of a series of chemical reactions which end up with the formation of a 3-carbon sugar called

a. ADP

b. NADPH

c. ATP

d. PGAL

229. Which cell structure regulates the opening and closing of the stomata?

a. Phloem

b. Xylem

c. Companion

d. Guard

230. Spraying some plants with combination of auxins and gibberellins will

a. promote ripening of fruits

b. result to seed dormancy

c. allow division of cells

d. enlarge fruit growth

231. All flowering plants belong to _______.

a. conifers

b. angiospermae

c. filicinae

d. gymnospermae

232. Fruit growers often propagate their plants by a sexual means because the resulting off spring will

a. be an improved variety than the parent

b. show little variation from the parent

c. bear larger fruit than the parent

d. show no environmental variation

233. Which of the following is incorrectly paired?

a. Cnidaria- corals

b. Porifera- sponge

c. Annelida- earthworm

d. Platyhelminthes-Ascaris

234. What process is cause for the upward movement of water in very tall trees?

a. Transpiration

b. Osmosis

c. Turgor pressure

d. Air pressure

235. Which popular plant is described as carnivorous?

a. Water hyacinth

b. Cactus

c. Pitcher plant

d. Kataka-taka

236. What is the purpose of RA 8749?

a. Prevent rather than control air pollution

b. Formulate air pollution management

c. Utilize sustainable development

d. All of these

237. What do you call the male gametophyte of an angiosperm?

a. Pollen

b. Ovule

c. Seed

d. Petal

238. Which root system is the best adapted for anchorage?

a. Secondary

b. Tertiary

c. Taproot

d. Fibrous e.

239. Egg-laying mammals are called

a. viviparous

b. primates

c. oviparous

d. marsupials

240. To what order do pouch bearing mammals?

a. Marsupials

b. Craniata

c. Monotremata

d. Placental mammals

241. Large colonies belonging to class Anthozoa secrete hard skeletons of lime which later form reefs.

a. Sea anemone

b. Obelia

c. Coral

d. Jellyfish

242. When body parts are paired on either side of the body; this type of symmetry is called

a. Dorso-ventral

b. Bilateral

c. Radial

d. Dorsal

243. What substance do leeches secrete which keeps the blood they feed on liquid state?

a. Hemoglobin

b. Ecdysone

c. Anticoagulin

d. Fibrinogen

244. One who specializes in all kinds of fishes and their characteristics has expertise on

a. Taxonomy

b. histology

c. entomology

d. ichthyology

245. In protozoans, digestion occurs in the

a. stomach

b. contractile vacuole

c. ribosome

d. food vacuole

246. What is a distinguishing characteristic of Homo sapiens over the lower mammals?

a. Blood vessels

b. Sensitive skin

c. Large brain

d. Endoskeleton

247. What kind of adaptation enables the walking stick to elude its enemies?

a. Aggressive mimicry

b. Aggressive adaptation

c. Protective mimicry

d. Protective coloration

248. Which stages of incomplete metamorphosis is undergone by grasshopper?

a. Nymph, pupa, adult

b. Egg, larva, pupa, adult

c. Egg, nymph, adult

d. Egg, pupa, adult

249. Which are the hosts of Ascaris lumbricoides and Ascaris suum?

a. Cow and man

b. Man and dog

c. Cow and pig

d. Man and pig

250. Two organisms can be identified as belonging to the same species if they can ______.

a. eat the same kind of food

b. breed in a natural setting

c. tolerate one another in nature

d. survive together in nature