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  1. Problems
  2. /Life Processes

Life Processes

Biology
+ Upload a Problem
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35 problems
Type:
1.
A patient's blood has 140 mg of urea in every 100 mL. New
High School (9–10), General · Excretion, Excretory SystemStemPy LabStemPy Lab
Hard
2.
Glucose passes from the glomerulus into Bowman's capsule, together with the water. New
High School (9–10), General · Excretion, Excretory SystemStemPy LabStemPy Lab
Easy
3.
Meera's kidneys make 110 mL of filtrate every minute, and she passes 1.4 L of urine in a day. New
High School (9–10), General · Excretion, Excretory SystemStemPy LabStemPy Lab
Medium
4.
In the evening, Leela cuts the stem of a potted tomato plant close to the soil. New
High School (9–10), General · Transport in Living OrganismsStemPy LabStemPy Lab
Medium
5.
Aphids are small insects that feed on plants. New
High School (9–10), General · Transport in Living OrganismsStemPy LabStemPy Lab
Hard
6.
A mango tree has about 60 m² of leaves. On a sunny day, each square metre of leaf loses about 0.15… New
High School (9–10), General · Transport in Living OrganismsStemPy LabStemPy Lab
Medium
7.
At a blood bank, Mr Thomas gives 350 mL of blood. New
High School (9–10), General · Transport in Living OrganismsStemPy LabStemPy Lab
Easy
8.
A fish has a heart with two chambers, and its blood passes through the heart only once in each… New
High School (9–10), General · Transport in Living Organisms, Circulatory SystemStemPy LabStemPy Lab
Hard
9.
A red blood cell leaves a capillary in the big toe. New
High School (9–10), General · Transport in Living Organisms, Circulatory SystemStemPy LabStemPy Lab
Medium
10.
A trained runner's heart beats 50 times a minute at rest, and pushes out 100 mL of blood with each… New
High School (9–10), General · Transport in Living Organisms, Circulatory SystemStemPy LabStemPy Lab
Medium
11.
Kavya counts 18 beats of her pulse in 15 s while sitting. New
High School (9–10), General · Transport in Living Organisms, Circulatory SystemStemPy LabStemPy Lab
Easy
12.
An oxygen molecule would take about three years to diffuse from your lungs to your toes. New
High School (9–10), General · Respiration, Respiratory SystemStemPy LabStemPy Lab
Medium
13.
Take a simple model: the two lungs hold 300 million alveoli, and each one is a tiny ball 0.25 mm… New
High School (9–10), General · Respiration, Respiratory SystemStemPy LabStemPy Lab
Hard
14.
At rest, Dev takes 16 breaths a minute, with 0.5 L of air in each. New
High School (9–10), General · Respiration, Respiratory SystemStemPy LabStemPy Lab
Medium
15.
Put these in the order in which air passes them: bronchi, nostrils, alveoli, trachea, pharynx… New
High School (9–10), General · Respiration, Respiratory SystemStemPy LabStemPy Lab
Easy
16.
A carp uses 20 mL of oxygen in an hour, and its gills take out 80% of the oxygen in the water. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Hard
17.
Name the breathing organ of each, and say whether it takes oxygen from air or from water: (a) a… New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Easy
18.
A small pond is full of water plants and fish. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Medium
19.
One litre of air holds about 210 mL of oxygen. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Medium
20.
(a) 8 glucose molecules are broken down fully with oxygen. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Hard
21.
In the last minutes of a football match, Imran sprints again and again. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Medium
22.
Two cells each break down 15 glucose molecules. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Medium
23.
Arjun mixes flour, water, a spoon of sugar and a little yeast. New
High School (9–10), General · RespirationStemPy LabStemPy Lab
Easy
24.
A cow and a tiger are both about the same size. New
High School (9–10), General · Nutrition, Digestive SystemStemPy LabStemPy Lab
Medium
25.
A meal stays about 3 hours in the stomach, 4 hours in the small intestine and 20 hours in the large… New
High School (9–10), General · Nutrition, Digestive SystemStemPy LabStemPy Lab
Easy
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