MCQ in Biological Science Part 7 | Licensure Exam for Teachers 2021

(Last Updated On: February 15, 2023)

This is the LET Reviewer 2021, Multiple Choice Questions in Biological Science Part 7 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 7 of the Series

⇐ MCQ in Biological Science Part 6 | Licensure Exam for Teachers 2021

Choose the letter of the best answer in each questions.

301. As green plants make food, they are

a. first – order consumers

b. second – order consumers

c. decomposers

d. producers

302. The producers in a pond are usually

a. tadpoles

b. algae

c. bacteria

d. small fish

303. A series in which each organism serves as food for the next organism is a

a. food chain

b. population

c. community

d. niche

304. Substances from dead plants and animals are returned to the water by

a. producers

b. consumers

c. decomposers

d. top consumers

305. The special role of each organism in a food pyramid is its

a. system

b. niche

c. physical environment

d. community

306. The consumers in a food chain in a pond are the

a. algae

b. plants

c. bacteria

d. animals

307. If you study how a fish is fitted for life in a quiet water, you are studying its

a. food pyramid

b. adaptation

c. interdependence

d. population

308. All the plants and animals in a pond form

a. an environment

b. a community

c. a population

d. an ecosystem

309. Many interdependent food chains in a forest make up a

a. food pyramid

b. pyramid of biomass

c. food web

d. habitat

310. The second – order consumers in a food pyramid get their food directly from

a. carnivores

b. decomposers

c. producers

d. herbivores

311. All the plants and animals on earth

a. create new matter

b. recycle the same matter

c. create new energy

d. recycle the same energy

312. An animal’s heartbeat and breathing are slowed down when it

a. enters a habitat

b. hunts for food

c. occupies a niche

d. hibernates

313. If you catch a fish and eat it, you may be

a. a first – order consumer

b. a second – order consumer

c. a decomposer

d. a scavenger

314. The part of sunlight absorbed most rapidly by water is

a. red light

b. blue light

c. violet light

d. green light

315. The increased effect of a pesticide on organisms that feed on each other in a lake is called

a. biological conservation

b. biological magnification

c. eutrophication

d. nitrification

316. Plants and animals in the same ecosystem usually have similar

a. shapes

b. sizes

c. ways of obtaining food

d. environmental needs

317. Which of the following refers to a secondary carnivore?

a. eats only plants

b. gets energy directly from the sun

c. gets energy through photosynthesis

d. has less food energy available to it than consumers at lower tropic levels

318. Which of the following statements is true regarding a food chain?

a. there are more herbivores than carnivores

b. each higher trophic level has more energy available to it

c. the number of organism at each trophic level is not related to energy

d. the biomass of third – order consumers is greater than the biomass of second – order consumers

319. Which of the following is the result of biological magnification?

a. energy is lost at each trophic level of the food chain

b. the greenhouse effect will be most significant at the poles

c. top – level predators may be most harmed by toxic environmental chemicals

d. DDT has spread throughout the ecosystem and is found in almost every organism

320. Why are green plants considered autotrophs?

a. They have many pigments that capture light.

b. They can build simple inorganic substances into complex organic substance.

c. They can build any kind of substances.

d. They depend on other sources for their food.

321. In what trophic level of the food pyramid are consumers greatest in number?

a. first trophic

b. second trophic

c. third trophic

d. fourth trophic

322. In a pond or desert, light, warmth, water, minerals, carbon dioxide, and oxygen make up the

a. ecosystem

b. community

c. population

d. physical environment

323. Why do most plants look green?

a. The chlorophyll in plants captures green light for photosynthesis.

b. The chlorophyll in plants reflects wavelengths of green light.

c. The chloroplasts in plants are surrounded by two green membranes.

d. The chloroplasts in plants make green sugar during photosynthesis.

324. Green plants make glucose from

a. water and carbon dioxide

b. chlorophyll and sunlight

c. water and oxygen

d. oxygen and carbon dioxide

325. A male structure in the flowering plant is the

a. ovary

b. ovule

c. pistil

d. stamen

326. Transfer of pollen from the stamen of one flower to the pistil of another is

a. fertilization

b. cross – pollination

c. self – pollination

d. reproduction

327. Cuttings and graftings are examples of

a. adaptation

b. fertilization

c. vegetative propagation

d. seed dispersal

328. Both gymnosperms and angiosperms

a. produce flowers

b. produce seeds

c. have needle – like leaves

d. lose all their leaves in the fall

329. Water and minerals are carried upward in plant stems in the

a. phloem

b. xylem

c. guard cells

d. stomata

330. Vegetative reproduction is a form of

a. pollination

b. seed dispersal

c. sexual reproduction

d. asexual reproduction

331. Corn and other monocots have each of the following structures except

a. parallel veins

b. seeds

c. a layer of cambium

d. xylem and phloem

332. Green plants store the energy of sunlight by the process of

a. cellular respiration

b. photosynthesis

c. oxidation

d. reproduction

333. In plants, food is usually made in the

a. roots

b. stems

c. leaves

d. rootlets

334. One function of roots is to

a. take in carbon dioxide

b. give off oxygen

c. anchor plant to the soil

d. produce food

335. Multicellular plants have many specialized structures. What function does xylem perform in multicellular vascular plants?

a. The xylem transports water and minerals from the roots to the leaves.

b. The xylem is the place where

photosynthesis takes place in a plant.

c. The xylem breaks down sugar into a form that plant cells can use.

d. The xylem is a woody tissue that fills the stem of a plant.

336. Which is not a primary function of the stem?

a. absorption

b. conduction

c. support

d. storage

337. Ginger is a

a. bulb

b. corm

c. rhizome

d. tuber

338. The primary functions of the root are _______.

a. conduction and storage

b. storage and anchorage

c. anchorage and absorption

d. absorption and conduction

339. Carbon dioxide used in photosynthesis enters the leaves through the

a. root system

b. stomata

c. phloem

d. fibrovascular bundles

340. All of the following reduce loss of water from plants except

a. bark

b. waxy layers on leaves

c. closing of stomata

d. opening of stomata

341. The primary functions of leaves are

a. photosynthesis and transpiration

b. transpiration and respiration

c. respiration and digestion

d. respiration and photosynthesis

342. Which of the following is not a correctly stated difference between monocots and dicots?

a. parallel veins in monocots; branching, netlike venation in dicot leaves

b. vascular bundles scattered in monocot stems; central vascular stele in dicot stems

c. flower parts in threes in monocots; flower parts in multiples of four or five in dicots

d. usually only primary growth in monocots; secondary growth in many dicots

343. How are the processes of photosynthesis and cellular respiration connected?

a. both processes begin with oxygen

b. both processes require sunlight

c. each processes takes place only in plant cells

d. each process makes the material needed in the other process

344. Why do cells need oxygen?

a. Oxygen is used during the process of fermentation.

b. Oxygen is used during the process of cell division.

c. Oxygen is used during the process of cellular respiration.

d. Oxygen is used during the process of meiosis.

345. What is the result of cellular respiration?

a. Energy is produced from radiant sunlight and carbon dioxide.

b. Energy is produced from sugar molecules and oxygen.

c. Sunlight is converted into sugar molecules and oxygen.

d. Sunlight is converted into water molecules.

346. Which of these describes a reproduction method of sexual organism?

a. forming a tuber

b. fusing of sex cells from two parents

c. producing runners

d. division through binary fission

347. The diaphragm is used in breathing by each of the following animals except the

a. kangaroo

b. baboon

c. frog

d. human

348. Each of the following vertebrates is cold – blooded except

a. fish

b. amphibians

c. birds

d. reptiles

349. The embryo develops within the mother in most

a. mammals

b. reptiles

c. amphibians

d. fish

350. A feature that relates the platypus to the reptiles is

a. egg – laying

b. cold – bloodedness

c. scales

d. a diaphragm