MDCAT Biology Chapter 3 MCQ's Test With Answers

MDCAT Biology Chapter 3 MCQ's Test

Sr. # Questions Answers Choice
1 RNA sequencing also indicates that green algae and the plants form a: Monophyletic lineage Biphyletic lineage Polyphyletic lineage None
2 The main energy reserves of green algae are stored as: Cellulose Glycogen Starch Murein
3 Which algae take part in building coral reefs along with coral animals: Green algae Red algae Brown algae Blue green algae
4 Which algae incorporate calcium carbonate in their cell walls from the ocean: Ref algae Green algae Brown algae Blue green algae
5 Most multicellular red algae attach to rocks or other substances by a basal: Stalk Clutch Stick Holdfast
6 What is deposited in the shell of diatoms: Calcium Pectin Silica Lignin
7 The cell wall of each diatom consists of: Single shell Two shells Triple shells Quadruple shells
8 Dinoflagellates blooms frequently colour the water orange, red or brown and are known as: Orange tides Red tides Brown tides All a, b, c
9 Algae which are known to have occasional population explosion or blooms are: Dinoflagellates Zooflagellaes Diatoms Euglenoids
10 Some photosynthetic euglenoids lose their chlorophyll when grown in: Sea River Light Dark
11 In all algae, in addition to green chlorophyll a, also found yellow and orange: Xanthophylls Phycoerythrin Carotenoids Phycobilin
12 A body which is not differentiated into true roots, stems and leaves and lacks xylem & phloem is called a: Thalloid Thallus Thylakoid Stump
13 Algae differ from the plants in that the sex organs in algae are unicellular and the zygote is not protected by the: Parent body Archegonium Sterile hair Cone
14 Apicomplexans lack specific structure for locomotion but move by: Contracting Gliding Bending Flexing
15 The shells or tests of foraminiferans and actinopods contain pores through which can be extended: Flagella Pseudopodia Cytoplasmic projections Tentacles
16 Tests of actinopods are made of: Calcium Silica Spongin Iron
17 Tests of foraminifera are made of: Calcium Silica Spongin Iron
18 Foraminifeans and actinopods produce: Shells Tests Bullets Both a & b
19 A large, polyploidy macronucleus of ciliates controls cells: Metabolism Growth Both a & b Sexual process
20 Small diploid micronuclei of ciliates function in: Excretion Digestion Sexual process Metabolism
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