No questions found
Which characteristic do all living organisms show?
555
580
564
The diagram shows some animal cells, as seen under the microscope.
What will be present at X?
598
573
561
What is a characteristic of both insects and arachnids?
598
586
589
The diagram shows a section through a root.
What are the levels of organisation of the labelled structures?
543
557
534
Which characteristics are correct for both osmosis and diffusion?
535
520
586
Which substances are made by linking together glucose molecules only?
574
579
578
Four test-tubes are set up as shown.
Which test-tube contains the most carbon dioxide after one hour?
594
509
554
The diagram shows a cross-section through a leaf.
What is the cell labelled X?
509
513
574
The nutrient ions present in four different soils are shown.
Which soil would be best for growing healthy, green plants?
[Table_1]
514
598
562
By which process does water escape from stomata in the leaves?
588
594
594
The diagram shows a cross-section of a plant stem.
What is the function of the tissue labelled V?
584
503
561
A piece of blue cobalt(II) chloride paper is clipped to the lower surface of a fresh leaf and is then covered with plastic, as shown. After a few minutes, part of the paper turns pink, showing that water is present.
Which process carried out by leaves causes the paper to turn pink?
586
514
567
Which chamber of the heart has the most muscular wall?
592
564
561
Which component of the blood carries the most oxygen?
567
553
542
Which is a function of some white blood cells?
508
548
596
The diagram shows part of the human gas exchange system. Where does the exchange of gases between air and blood take place?
506
591
574
The diagram shows substances moving into and out of a living cell.
Which process is taking place in this cell?
526
557
549
The diagram shows some organs in the human body. In which part are amino acids broken down to form urea?
502
574
531
The diagram shows a reflex arc. What is X?
541
538
548
The diagram shows the skin.
Which labelled area contains fatty tissue?
574
578
502
The diagram shows a seedling that has been placed in a pot of soil.
Which diagram shows what happens after five days?
524
555
553
Which disease can be caused by smoking tobacco?
512
553
548
The diagram shows a spider plant with a daughter spider plant growing from it.
Which statement is correct?
587
532
557
The diagram shows half a flower.
Which structure is the stigma?
581
572
534
The diagram shows the human male reproductive system.
What is structure X?
501
585
549
Which hormone is involved in the development and regulation of male secondary sexual characteristics?
506
589
551
What is produced when a cell undergoes mitosis once?
511
567
571
The diagram shows four cells. Which cell is produced by meiosis?
549
564
506
The graph shows the masses of two different types of tomato.
What can be concluded from the graph?
592
520
566
A female guinea pig that was pure-breeding for white fur, mated with a male guinea pig that was pure-breeding for brown fur. All the offspring had brown fur. One of the male offspring mated with a female with white fur. What proportion of white offspring would be expected from this cross?
553
529
568
The diagram shows a food web.
[Image_1: Food web diagram]
Which two organisms in this web are both carnivores?
533
529
544
Fungi can act as decomposers feeding on dead organic matter.
Which statement describes their effect on the carbon cycle?
590
574
561
The graph shows the changes in the populations of predator and prey over a period of time.
Which point on the graph shows a decrease in predator population?
555
586
534
A crop plant has been genetically modified to make it resistant to herbicides. Which is a possible disadvantage of introducing this new crop plant?
523
594
508
Why is yeast used in breadmaking?
550
528
579
The graph shows the levels of dissolved oxygen and mineral ions in a river.
At which point does raw sewage enter the river?
571
506
583
