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Y7 Biology Basics (Part 3) Flashcards | StudBud
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Y7 Biology Basics (Part 3)
Y7 Biology Basics (Part 3)
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1
The chemical produced by lymphocytes to remember how to kill germs is called?
Mucus
Antigens
Haemoglobin
Antibodies
2
The process where a sperm fuses with an egg/ovum is called..
Sexual reproduction
Fertilization
Asexual reproduction
Respiration
3
Stimuli is...
Changes in the environment
Sense of touch
Electric signals/impulses
Chemicals in the form of gas
4
The part of the cell where cell activity is controlled is called...
Chromosomes
Cell membrane
Nucleus
Cytoplasm
5
In fertilization, a sperm fuses with an ovum to produce a...
Zygote
Infant
Fetus
Embryo
6
Samples for viewing under a microscope are placed on what apparatus?
Microscope slide
Stage
Microscope slip
Stage clips
7
The cytoplasm of the cell is mainly made up of...
Proteins
Fats
Water
Carbohydrates
8
Which white blood cells help our bodies to 'remember' how to attack and kill germs?
Monocyte
Erythrocyte
Lymphocyte
Phagocyte
9
The chemical that gives red blood cells its red color is...
Glucose
Carbon dioxide
Oxygen
Haemoglobin
10
The diaphragm of a microscope is an opening that allows light to pass through and illuminate the sample.
True
False
11
Red blood cells are produced in...
Red bone marrow
Yellow bone marrow
Heart
Arteries
12
Ciliated epithelial cells found in the fallopian tube perform what function?
Produce mucus
Traps dust and dirt particles
Help move ovum closer to sperm for fertilization
Help sweep defective ovum away for excretion
13
Red blood cells have a biconcave shape. Why?
Prevents the cell from bursting too easily
Allows gases to move in and out of the cell easier
Increases the life span of the cell
Reduces friction in transport
14
Mucus is produced by what cell?
Root hair cell
Cilia
Ovum
Goblet cell
15
Carbon dioxide + water --> ? + ?
Oxygen + glucose
Glucose + fats
Carbon dioxide + oxygen
Chlorophyll + glucose
16
Root hair cells have very long root hairs. Why?
Increase surface area for water and mineral absorption
Decrease distance between soil and root
Increase surface area for water and sugar absorption
Decrease thickness of root hairs
17
A standard light microscope contains which 3 types of objective lens magnifications?
2X, 4X, 6X
4X, 10X, 100X
4X, 10X, 40X
5X, 25X, 50X
18
Asexual reproduction needs 2 parents, a male and a female.
False
True
19
A sperm cell contains how many chromosomes?
46
22
23
52
20
The main function of palisade cells is...
Perform respiration
Perform photosythesis
Add color to leaf
Make leaf look prettier
