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EST 2 Biology

Cell Structure and Molecular Biology

0/51 Dr Dabour Hub Science Diagram and Course Material

Ecology

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Genetics and Heredity

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Body Systems and Plants

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Classification and Evolution

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Quiz

EST II Biology Unit 4 – Body Systems and Plants

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Body Systems and Plants EST Biology quiz: free practice for EST 2 Biology. Work through this Body Systems and Plants EST Biology quiz and get instant feedback on every answer. If you get stuck, review the 4.8 EST II Biology — Body Systems and Plants: Image Practice lesson. More practice: EST 2 Biology — all units. Syllabus: OpenStax free science textbooks.

  • Questions count: 39
  • Passing grade: A+
  • Time limit:
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1.
Which blood vessels carry blood away from the heart?
Veins
Arteries
Capillaries
Lymph vessels
2.
Gas exchange between blood and tissues occurs across the walls of
veins
capillaries
the aorta
arteries
3.
The chamber of the human heart that pumps blood to the body is the
left ventricle
left atrium
right atrium
right ventricle
4.
Oxygen is carried in red blood cells bound to
plasma proteins only
platelets
haemoglobin
white blood cells
5.
Gas exchange in human lungs takes place in the
trachea
larynx
bronchi
alveoli
6.
During inhalation the diaphragm
relaxes and domes upward
does not move
contracts and flattens
pushes air out
7.
Most chemical digestion and absorption of nutrients happens in the
oesophagus
stomach
small intestine
large intestine
8.
Bile helps digestion by
digesting proteins
absorbing water
emulsifying fats
digesting starch
9.
Pepsin works best in the stomach because
it digests starch
the stomach is alkaline
it has an acidic optimum pH
it needs bile
10.
The functional unit of the kidney is the
neuron
villus
nephron
alveolus
11.
Antidiuretic hormone increases
sweating
urine volume
water reabsorption in the kidney
glucose excretion
12.
Insulin lowers blood glucose by
stopping digestion
causing cells to take up glucose and the liver to store it as glycogen
breaking down glycogen
increasing glucose release from the liver
13.
The gap between two neurons is called a
synapse
axon
dendrite
node
14.
A reflex arc allows
hormones to travel in blood
conscious thought about a stimulus
long-term memory
a rapid automatic response
15.
Antibodies are produced by
red blood cells
neurons
B lymphocytes (plasma cells)
platelets
16.
Vaccination works by
stimulating memory cells without causing the disease
killing all bacteria in the body
replacing white blood cells
giving antibiotics
17.
Phagocytes defend the body by
clotting blood
carrying oxygen
producing hormones
engulfing and digesting pathogens
18.
Muscles move bones by
relaxing only
contracting and pulling on them
pushing them
producing hormones
19.
Tendons connect
bone to bone
muscle to muscle
nerve to muscle
muscle to bone
20.
In humans, fertilisation normally takes place in the
ovary
uterus
oviduct
vagina
21.
The hormone that triggers ovulation is
thyroxine
insulin
adrenaline
luteinising hormone
22.
Xylem transports
oxygen to roots
water and mineral ions from roots to leaves
hormones only
sugars from leaves to roots
23.
Phloem transports
minerals only
sugars and other organic substances
water only
gases
24.
Stomata on leaves allow
sugar transport
gas exchange and water vapour loss
root growth
water uptake from soil
25.
Guard cells close stomata when
carbon dioxide is low
the plant is growing fast
the plant is short of water
light intensity is high and water is plentiful
26.
Transpiration is
the uptake of water by roots
the loss of water vapour from leaves
the making of glucose
the movement of sugar in phloem
27.
Root hair cells are adapted for absorption because they
have thick waxy walls
have a large surface area
lack a membrane
contain many chloroplasts
28.
A plant shoot bending toward light is
thigmotropism
gravitropism
positive phototropism
negative phototropism
29.
Auxin causes a shoot to bend toward light by
closing stomata
stopping photosynthesis
making cells on the shaded side elongate more
killing cells on the lit side
30.
Palisade mesophyll cells are the main site of photosynthesis because they
contain many chloroplasts
store water
transport sugar
have no cell wall
31.
The waxy cuticle on a leaf reduces
water loss
gas exchange completely
light absorption
photosynthesis
32.
In flowering plants, pollination is the transfer of
water from root to leaf
ovules to the anther
pollen from anther to stigma
seeds from fruit to soil
33.
Double fertilisation in flowering plants produces
two embryos
two seeds
two pollen tubes
a zygote and endosperm
34.
Seeds need which conditions to germinate?
Fertiliser and light
Light and soil only
Water, oxygen and a suitable temperature
Carbon dioxide only
35.
Gibberellins in plants promote
stem elongation and seed germination
leaf fall
fruit ripening only
stomatal closure
36.
Ethylene is a plant hormone that promotes
root growth only
fruit ripening
seed dormancy
stem elongation
37.
Homeostasis is
maintaining a stable internal environment
growth of an organism
digestion of food
reproduction
38.
When body temperature rises, blood vessels near the skin
narrow to reduce heat loss
widen to increase heat loss
stop carrying blood
close completely
39.
The endocrine system communicates by
enzymes in the gut
hormones in the blood
direct contact only
electrical impulses along neurons
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Part of Body Systems and Plants — see every lesson and quiz in this unit.
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