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起止时间:2021-04-19到2021-07-26
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Chapter 1：The concept of cell Test：The concept of cell
1、 The first scientist to discover cells was ().
A:Robert Hooke
B:Levin Hook
C:German botanist Schleiden
D:German zoologist Schwann
答案: Robert Hooke
2、 The first living cell that Levin Hooke saw was ().
A:Leukocyte
B:Epithelial cell
C:Erythrocytes
D:Bacterial cell
答案: Erythrocytes
3、 The earliest materials used to observe and discover cells were ().
A:Animal tissue
B:Plant leaves
C:Cork
D:Cloth
答案: Cork
4、 Select the correct answer ().
A:Plants and animals are made up of cells.
B:Only plants are made up of cells.
C:Only animal bodies are made up of cells
D:Bacteria are not cells.
答案: Plants and animals are made up of cells.
5、 Levin Hook’s most important scientific contribution is ().
A:Inventing the microscope.
B:Being the first to observe living cells.
C:The study of animal cells.
D:The study of plant cells.
答案: Being the first to observe living cells.
6、 The smallest cell is ().
A:Animal cell
B:Plant cell
C:Mycoplasma
D:Bacteria
答案: Mycoplasma
7、 Cells without cell walls are ().
A:Plant cell
B:Animal cell
C:Bacterial cell
D:Fungal cell
答案: Animal cell
8、 elect the correct answer ().
A:Cells in all tissues are the same size.
B:The cells in a large organism are also large.
C:The cell size of the same organ in different animals is not very different.
D:Cells in small organisms are larger.
答案: The cell size of the same organ in different animals is not very different.
9、 The red blood cell is a kind of specialized cell because…
A:The cells are relatively large.
B:There is no nucleus.
C:The cells are spherical.
D:The cytoskeleton is well developed.
答案: There is no nucleus.
10、 Neurons usually have () axons, and 1 or more dendrites.
A:1
B:2
C:3
D:Multiple
答案: 1
11、 The egg cells are generally ().
A:Relatively large in volume.
B:Polynuclear.
C:Have flagella.
D:Can exercise.
答案: Relatively large in volume.
12、 The four biomacromolecules in cells are ().
A:Nucleic acids, lipoproteins, glycoproteins and glycolipids
B:Nucleic acids, proteins, sugars and lipids
C:Nucleoprotein, lipoprotein, glycoprotein, glycolipid
D:Nucleoprotein, amino acid, glycoprotein, glycolipid
答案: Nucleic acids, proteins, sugars and lipids
13、 The cytoplasmic membrane is composed of phospholipid bilayer and mosaic ().
A:Nucleic acid
B:Protein
C:Protein
D:Cholesterol
答案: Protein
14、 All cells have two kinds of nucleic acids, DNA and ().
A:Protein
B:Amino acids
C:RNA
D:Polysaccharide
答案: RNA
15、 Ribosomes are machines that produce () in cells.
A:Carbohydrate molecules
B:RNA
C: Protein
D:Nucleic acid
答案: Protein
16、 Cell division is the process of ().
A:Cell differentiation
B:Forming 2 daughter cells
C:Cell fusion
D:Aging
答案: Forming 2 daughter cells
17、 The result of cell differentiation is ().
A:Cell death
B:Forming different types of new cells
C:Forming embryonic stem cells
D:To form a fertilized egg
答案: Forming different types of new cells
18、 The mRNA in the cell is ().
A:Storage of genetic information
B:Carriers of genetic information
C:Protein translator
D:DNA replicator
答案: Carriers of genetic information
19、 The respiration of cells mainly occurs in the ().
A:Endoplasmic reticulum
B:Mitochondria
C:Nucleus
D:Chloroplast
答案: Mitochondria
20、 The absorption of nutrients by cells mainly occurs through ().
A:Exocytosis
B:Cytoskeleton
C:Plasmodesmata
D:Endocytosis
答案: Endocytosis
Chapter 2：How to understand cell Test：How to understand cell
1、 The naked eye’s resolving power is ().B.
A:20 μm
B:0.2 mm
C:3-30 μm
D:0.2 nm
答案: 0.2 mm
2、 The principle of the inverted microscope is ().
A:The objective is on the top and the light source is at the bottom
B:No need for light source
C:The light source is on the top and the objective is at the bottom
D:Need for dark vision
答案: The light source is on the top and the objective is at the bottom
3、 The () in cells can be observed with fluorescence microscope.
A:Active substance
B:Materials that can move
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